FLAT FACE QUICK COUPLINGS

Transcription

FLAT FACE
QUICK COUPLINGS
A CONSTANT FLOW OF SOLUTIONS
FLAT FACE QUICK COUPLINGS: INDEX
The flat face quick couplings main features are reduction of contamination into the circuit, fluid lose in
the environment and reduction of air inclusion during connection and disconnection.
Thanks to these key features, flat face couplings are become synonymous with safe, reliable and
ecological products. Stucchi offers a wide range of flat face couplings series to satisfy a diverse range
of application requirements.
• General instructions for selection and use of the products
Page 2
STANDARD
• “A” Series (Interchange ISO 16028)
• “FIRG” Series (Interchange ISO 16028)
Page 5
Page 12
CONNECTABLE WITH RESIDUAL PRESSURE
• “APM” Series (Interchange ISO 16028)
Page 19
SCREW CONNECTABLE WITH RESIDUAL PRESSURE
• “VP-P” Series • “VEP-P” Series
• “VEP-HD” Series
Page 26
Page 33
Page 40
HIGH PRESSURE (720 bar/10440 psi)
• “A-HP” Series
Page 46
Page 51
SPECIAL TREATMENT
• “FIRG-Q” Series (Interchange ISO 16028)
Page 57
Page 63
Page 67
Page 68
TECHNICAL INFORMATION
• Technical features and terms glossary • Seals and relative temperature range
• Conversion factors Page 69
Page 70
Page 70
STAINLESS STEEL
• “FL” Series (Interchange ISO 16028)
ACCESSORIES
• Protection caps for “FIRG” and “A” series
• Protection caps for “VP-P” series
• Protection caps for “VEP-P” and “VEP-HD” series
The texts, data and illustrations indicated in this catalogue, may be changed by Stucchi S.p.A at any time without notice.
(CAT. FLAT FACE - March 2008).
1
GENERAL INSTRUCTIONS FOR SELECTION AND USE OF THE PRODUCTS
The incorrect use of products can cause malfunctioning and safety risks.
Therefore, before using Stucchi products, we strongly recommend reading and following the “general instructions for selection
and use of the products” and the “instructions of use” of the specified product intending to use.
ATTENTION!!!
A defect, a wrong choice or an improper use of products, can cause damage to persons, animals
and objects.
It is MOST IMPORTANT to read and closely follow the instructions written below before selecting
or using Stucchi products.
1.0 GENERAL INSTRUCTIONS
1.1 Context
These safety instructions form a supplement and shall be used as one document together with the technical documentation
related to the specified product to be installed.
1.2 Safeguarding
It is recommended that all systems and equipment be protected so that safety of people, animals and objects will be
guaranteed in case of defect of the product.
1.3 Distribution of the instruction
A copy of these instructions has to be supplied to every person responsible for the selection and/or usage of the products.
1.4 Responsibility of the user
Due to the most various range of operating use and conditions of the products, Stucchi does not guarantee that every product
can be used for every application.
These safety instructions don’t analyse all technical parameters that have to be considered by selecting the products.
The end user, through their own analyses and tests, is responsible for the following:
- Final selection of the product
- Ascertainment that the requirements of the end user are satisfied and that the predicted use does not present a safety risk.
- Supply of all warnings regarding the safety of the equipment on which Stucchi products will be used.
2.0 INSTRUCTIONS FOR SELECTION OF THE PRODUCT.
2.1 Application fields
Check that the product is suitable for the specific application.
In case of doubt, contact the Stucchi customer service.
2.2 Type of product
Select the type of product most suitable for the working environment.
Flat face couplings: suitable for working environments where it is necessary to reduce to minimum the fluid loss during
disconnection and to avoid dirt inclusion during connection.
Screw couplings: they are suitable for high working pressure and frequent impulses; they are connectable with high residual
pressure.
Poppet valve couplings: widely used in the agricultural field.
2.3 Materials and treatments
Make sure that the materials and treatments of the product conform to the exposed working environment.
2.4 Dimensions
Choose the product with dimensions and flow suited to the circuit in order to avoid over stress damaging the product.
2.5 Flow inversion
For application with flow inversion during operation, use only products designed for that scope.
Flow inversion during operation generates turbulences inside the product that can cause damage on the components.
2.6 Thread
Choose the product with thread suitable for the application.
For high pressure conditions, over 50 MPa, products with taper thread NPT are recommended.
2.7 Type of medium
Verify that the seals of the product are compatible with the medium used.
Make sure that other not compatible fluids do not come in contact with the seals in case of maintenance.
Do not use the products with inflammable, explosive or dangerous fluids without approval of Stucchi S.p.A.
2.8 Medium temperature
Verify that the working temperature is within the functional limits of the coupling and its seals.
The couplings must not be connected and disconnected with a temperature higher than 80 degrees Celsius.
In case of connection-disconnection with temperature higher than 30 Celsius degrees, the operator must be protected using
gloves and/or other devices to prevent any leakage or splashing causing injury to himself, persons, animals and objects.
2.9 Environment temperature
With extreme temperature conditions, the mechanical resistance of the products changes. The use and handling of couplings in
case of ice can be difficult due to ice inclusion in the blocking mechanisms.
Use protective gloves in applications with hot and cold operating temperature.
2.10 Pressure
Verify always if the maximum working pressure of the product is the same or higher than the pressure peaks of the application.
Do not make confusion between the burst pressure and the maximum working pressure, so do not use the value of the burst
pressure for your selection.
2
Check that the number of impulse cycles which the product has been tested is compatible with the impulse number of the
application.
2.11 Residual pressure
For connection and disconnection with residual pressure use only couplings that are developed for this scope.
The term ‘internal residual pressure’ means: the static pressure retained in the system, which has not be generated by a working
pump or other accessories in movement.
The structure of the machine or plant in which these products are placed, must be suitable to limit accidental splashing and
fluid losses caused by wrong usage or malfunctioning of the product, in order to avoid direct and indirect damage on persons,
animals or objects. The temperature of the fluid must not exceed the limits mentioned in point 2.8
2.12 Connection frequency
It is important to know the connection frequency with which the coupling is used, while this has significant influence on the life of
both springs and seals.
An under-estimated value can cause unexpected fluid loss.
2.13 Safety device
If used in environments or machines in strict closeness at persons, animals or objects (1 meter), within easy accidental
disconnection conditions, it is highly recommended to use ball locked couplings with security system or screw couplings and to
make sure that the preventive disconnection mechanism is correctly screwed together.
2.14 Mechanical loads
Side loads, mechanical stresses in general and vibrations reduce significantly the life of the product and are often the cause of
sudden damages.
It is recommended to assemble quick release couplings without risks of mechanical damage and over-loading caused by stress
generated in flexible or rigid hoses and to assemble quick release couplings on hoses with proper dimensions referred to the
nominal passage of the quick release coupling.
2.15 Rotation
In case of applications with rotation use only products developed for this scope.
In case of rotation between male and female part it is necessary to inform in advance Stucchi customer service or to provide
the connection with swivel joints suitable for this scope.
2.16 Special applications
You should be advised to take particular attention to special applications (such as vacuum use, high temperature, etc...).
Please consult Stucchi customer service who is able to give instructions concerning the use of Stucchi products.
Do not use Stucchi products in nuclear , aircraft or military field ; do not use Stucchi products in explosive environment or with inflammable , explosive or dangerous fluid. In this cases contact Stucchi Customer Service for assistance.
3.0 INSTRUCTIONS FOR STOCK PRESERVATION
For a correct preservation of the product and in order to avoid damage before even starting to use the product read carefully
the following instructions.
3.1 Packaging
The products have to be kept in closed packaging to protect the components, mainly the seals, from dust and ultraviolet radius.
3.2 Environments
The products shall be kept in environments with low percentage of humidity, no condensation, no salt, protected from
atmospheric factors, far away from heating devices and magnetic fields.
Eliminate equipment that can produce ozone, as this element is extremely destructive for the seals.
3.3 Protection cap
The protection cap assembled on the thread has to be removed at the moment of the product installation only.
3.4 Special packaging
In case of requests for special packaging contact the customer service.
4.0 INSTALLATION INSTRUCTIONS
4.1 Pre Installation inspections
Before installation of the product it is necessary to inspect it visually and to verify if the part number and description of the
product refers to the one requested.
4.2 Use of flexible hoses
To absorb better the vibrations and mechanical stress on the connection mechanism of the couplings, it is suggested to use
flexible hoses.
In this way you avoid vibrations of the circuit that cause accidental disconnection or damage on the coupling.
4.3 Hose assembling
The hose has to be assembled so that connection/disconnection of the couplings takes place in easy way and aligned position.
Presence of high radial/axial forces creates misalignment of the couplings during connection/disconnection and can cause
damage on the connection and sealing parts.
4.4 Adapter assembling
Use adapters and sealing systems conform to the thread of the product only.
To install and remove the couplings use proper tools and act only on flat spanner surfaces of the coupling. Do not use improper
tools (spanner for hoses, bench vice, pincer etc.) while these can cause damage on the coupling with malfunction as result.
Use the tightening torque stabilized by the norm to screw the adapters.
4.5 Positioning of the coupling
It is suggested to install the couplings in such way that they can easy be connected and disconnected, reducing to the
minimum the forces and risks for the operator.
It is suggested to protect the couplings using shelters and protections (see sector norms) to guarantee the security and to
prevent damage.
3
5.0 INSTRUCTIONS OF USE
5.1 Modality of use
The modality of use changes in accordance to the type of product used.
For every type of product, the modality of use described in the catalogue or the specific usage instructions supplied by Stucchi
have to be carefully followed .The system has to be immediately stopped and the product should be replaced whenever one of
the following conditions will occur:
- Visible damage, damaged parts of the product, cracks and corrosion.
- Difficulties in connection and disconnection generated by too high force compared to the data mentioned in the catalogue.
- Presence of leakage.
- Malfunctioning of the valve.
- Block of the circuit.
In the above mentioned cases please contact Stucchi customer service for information.
5.2 Connection / Disconnection
Before connecting, the parts of the couplings involved in the connection have to be cleaned. Connection with dirty parts may
cause damage such as unexpected and dangerous leakage on the coupling.
Another consequence of dirt is contamination of the system.
Do connect and disconnect the coupling only as indicated in the modality of use: do not use other unsuitable tools.
5.3 Mechanical damage
The product shall not be exposed to mechanical damages while they can cause damage and malfunctioning.
Do not use tools to open the valves to release residual pressure trapped in the circuit.
5.4 Circuits cleaning
Use the products in clean circuits.
Dirt can damage components of the product and cause malfunctioning.
5.5 Protection caps
Use anti-dust caps when coupling is disconnected to avoid dirt and contamination and to protect the surface from accidental
damage caused by collisions.
5.6 Use of semi-couplings of other manufacturers.
Do not connect Stucchi half-couplings with other not compatible half-couplings.
In case of connection of a Stucchi half-coupling with a half-coupling from another manufacturer, do not exceed the lowest
nominal pressure of the two products.
6.0 MAINTENANCE INSTRUCTIONS
The good functional of product is often compromised by a lack of maintenance.
To avoid unexpected damage that can cause times of arrest and safe risks it is necessary to apply maintenance periodically.
The period dedicated to the maintenance of the product has to be defined by the user and depends on the type of
application and on the working conditions the product is exposed to.
6.1 Ordinary - Preventive maintenance
First, the product should be well cleaned and the area where it is installed as well, then you should check and verify the following
steps:
- Absence of breakage or various damage on the products.
- Absence of leakage in general.
- Correctness of tightening torque of the adapters.
- Check the level of circuit contamination.
- The connected parts or the parts in movement should be greased with grease compatible with the seals assembled in the
products.
- The replacement of the coupling should be planned in accordance with the requested endurance for the specific application.
6.2 Repair
In case of reparation of the products it is recommended to follow Stucchi’s specific instructions and use spare parts, tools and
documentation supplied by Stucchi only.
Please contact Stucchi customer service for the above specific information.
IT IS THE RESPONSIBILITY OF THE USER TO SELECT, INSTALL AND USE THE QUICK RELEASE COUPLING IN THE CORRECT WAY.
For more information please contact the Stucchi customer service.
4
SERIES: A
INTERCHANGE: ISO 16028 and NFPA T3.20.15 (HTMA)
MAIN APPLICATIONS
Series “A” is the evolution of Stucchi
technology and quality applied to
flat face couplings. The series has
a internal design combined with
a high resistance material to allow
the achievement of higher
operating pressure and minimal
pressure drop. The modular
structure allows the flexibility to offer
several types of threads or
special ports in order to satisfy
diverse applications while
maintaining a compact
dimension. These features make
series “A” couplings the leader in
many hydraulics applications where
high performance is necessary with
the elimination of fluid loss and
contamination in the circuit.
• Mobile construction equipment
• Agricultural equipment
• Hydraulic tools
• Industrial equipment
• Vehicles
5
SERIES: A
TECHNICAL FEATURES AND OPTIONS
• Interchangeability: ISO 16028 (from size 6.3 to 25)
HTMA (size 10)
• Valve system: Flat face
• Mechanical connection: Locking balls
• Connection system: Push to connect
• Disconnection system: Pulling back the sleeve of the female
• Connection with residual pressure: Not allowed
• Disconnection with residual pressure: Not allowed
• Threads available: BSP, NPT, SAE
• Threads on request: Metrics DIN, ORFS, and others
• Construction material: High resistance
carbon steel
• Surface treatment: CrIII zinc plated
• External springs: AISI 302
• Internal springs: C72 steel
• Locking ball material: Hard steel 100 C6
• Seals: standard in NBR (Nitrile)
• Seals on request: Viton and others
• Anti-extrusion rings: PTFE
Hardened surface area
to reduce the “brinelling”
effect
High number of locking
balls to reduce the
“brinelling” effect
Safety lock to prevent
accidental disconnection
Modular structure
Flat face valves
Modular structure
Special design PTFE “U” seal
for high resistance against
extrusion
BENEFITS
• Flat face is easy to clean, helping to reduce the inclusion of contamination to the hydraulic circuit.
• Minimal fluid loss during connection / disconnection, reducing fluid loss to the environment.
• Minimal air inclusion during connection / disconnection, enhancing correct function of the circuit.
• Internal valve design creates minimal pressure drop, maintaining circuit efficiency in the system
• The modular design allows flexibility with the range of port configurations.
• Good resistance at impulse pressures.
• Compact slim design.
• Safe and simple to use.
6
SERIES: A
HOW TO USE
• Before to couple clean the flat mating surface of quick coupling to avoid the inclusion of dirty in the circuit.
• To couple push the male half towards the female half or vice versa.
• After connection turn the external sleeve to engage lock function, to prevent accidental disconnection.
• To uncouple turn the external sleeve until the sleeve lock groove corresponds with the safety lock ball and pull
back the sleeve.
WARNING!
• Do not use the female coupling disconnected with impulse pressure at high frequency.
• Do not couple-uncouple with flow and/or pressure in the circuit.
• Do not couple-uncouple when the temperature inside of the circuit is higher than 80 °C (176 °F).
• When the couplings are disconnected, it is suggested to use the protection caps.
PERFORMANCE
Description
Size
A4
A7
A9
A13
A15
A17
A21
A25
A30
Inch
1/8
1/4
3/8
1/2
5/8
3/4
1
1-1/4
1-1/2
Description
Descrizione
A4
A7
A9
A13
A15
A17
A21
A25
A30
ISO
Size
mm
6,3
10,0
12,5
16,0
19,0
25,0
-
Rated Flow
l/min
3
12
23
45
74
100
189
225
288
GPM
0,80
3,18
6,10
11,93
19,61
26,50
50,09
59,63
76,32
Max. flow
suggested
l/min
GPM
6
1,59
24
6,36
46
12,19
90
23,85
148
39,22
200
53,00
378
100,17
450
119,25
750
198,75
Max.pressione
operatingdipressure
Max.
esercizio
Coupled
Male
Female
Accoppiato
Maschio
Femmina
MPa
psi
MPa
psi
MPa
psi
42
6090
42
6090
42
6090
42
6090
42
6090
42
6090
35
5075
35
5075
35
5075
33
4785
33
4785
33
4785
33
4785
33
4785
33
4785
33
4785
33
4785
33
4785
30
4350
30
4350
30
4350
30
4350
30
4350
30
4350
27
3915
27
3915
27
3915
Connect force
N
120
150
170
190
190
220
250
350
390
Disconnect force
lbf
27,00
33,75
38,25
42,75
42,75
49,50
56,25
78,75
87,75
N
25
45
40
50
55
70
75
90
70
Coupled
Accoppiato
MPa
psi
126
18270
126
18270
100
14500
100
14500
100
14500
100
14500
80
11600
80
11600
80
11600
lbf
5,63
10,13
9,00
11,25
12,38
15,75
16,88
20,25
15,75
Burst pressure
Pressione
di scoppio
Male
Maschio
MPa
126
126
100
100
100
100
80
80
80
psi
18270
18270
14500
14500
14500
14500
11600
11600
11600
Spillage*
ml
0,001
0,006
0,012
0,020
0,026
0,032
0,035
0,170
0,050
Female
Femmina
MPa
psi
126
18270
126
18270
100
14500
100
14500
100
14500
100
14500
80
11600
80
11600
70
10150
* Spillage is an indicative value of the fluid loss per couple-uncouple cycle.
• Temperature range:
- Standard seals NBR (Nitrile): from -20 °C to +100 °C ( from -4 °F to +212 °F).
- VITON seals: form -15°C to +180°C ( from +5 °F to +356 °F).
• Tests:
- The couplings have been tested at impulse with max. operating pressure for 100.000 impulses in according with
ISO 7241-2.
7
SERIES: A
PRESSURE DROP
8
SERIES: A
OVERALL DIMENSIONS
FEMALE BSPP THREAD (DIN 3852)
Femmina
Female
Maschio
Male
A
A
Unità
Unit
Descrizione
Description
Unità
Unit
Peso
Weight
B
B
C
C
D
D
E
E
FF
G
G
H
H
II
JJ
17
0,67
22
0,87
27
1,06
27
1,06
36
1,42
36
1,42
36
1,42
46
1,81
46
1,81
55
2,17
55
2,17
55
2,17
55
19
0,75
27
1,06
30
1,18
30
1,18
36
1,42
36
1,42
41
1,61
46
1,81
46
1,81
55
2,17
55
2,17
55
2,17
55
36,3
1,43
47,9
1,89
60
2,36
62,5
2,46
68
2,68
70,5
2,78
73
2,87
83,7
3,30
83,7
3,30
96,8
3,81
90
3,54
100
3,94
105
20
0,79
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
48
1,89
55
2,17
55
2,17
65
2,56
65
40
1,57
53,1
2,09
64,8
2,55
69,8
2,75
76,8
3,02
83,8
3,30
84
3,31
96,8
3,81
98,8
3,89
104,8
4,13
105,8
4,17
120,1
4,73
125,1
68,4
2,69
90,2
3,55
108,8
4,28
116,3
4,58
127,5
5,02
137
5,39
139,4
5,49
158,5
6,24
160,5
6,32
178,6
7,03
172,8
6,80
196,8
7,75
206,8
18,5
0,73
23,8
0,94
29
1,14
29
1,14
40
1,57
40
1,57
38,5
1,52
49,8
1,96
49,8
1,96
59,8
2,35
59,8
2,35
59,8
2,35
59,8
20,5
0,81
29
1,14
32
1,26
32
1,26
40
1,57
40
1,57
44,8
1,76
49,8
1,96
49,8
1,96
59,8
2,35
59,8
2,35
65
2,56
65
11,6
0,46
16,1
0,63
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
30
1,18
36
1,42
36
1,42
44
1,73
44
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
0,038
0,08
0,086
0,19
0,146
0,32
0,138
0,30
0,235
0,52
0,273
0,60
0,299
0,66
0,525
1,16
0,475
1,05
0,890
1,96
0,706
1,56
1,130
2,49
1,085
0,073
0,16
0,187
0,41
0,273
0,60
0,278
0,61
0,452
1,00
0,462
1,02
0,626
1,38
0,970
2,14
0,937
2,07
1,415
3,12
1,312
2,89
2,090
4,61
2,070
A4 1/8 BSP
1/8
A7 1/4 BSP
1/4
A9 3/8 BSP
3/8
A9 1/2 BSP
1/2
A13 1/2 BSP
1/2
A13 3/4 BSP
3/4
A15 3/4 BSP
3/4
A17 3/4 BSP
3/4
A17 1 BSP
1
A21 1 BSP
1
A21 1-1/4
BSP
A25 1 BSP
1-1/4
A25 1-1/4
BSP
A30 1-1/2
BSP
1-1/4
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
1-1/2
Inch
mm
2,17
65
2,17
65
4,13
111,1
2,56
80
4,93
132,4
8,14
214,9
2,35
69,8
2,56
82
1,73
57
lb
Kg
2,39
1,665
4,56
3,140
Inch
2,56
2,56
4,37
3,15
5,21
8,46
2,75
3,23
2,24
lb
3,67
6,92
1
9
SERIES: A
OVERALL DIMENSIONS
FEMALE NPT THREAD (ANSI B.1.20.3)
Femmina
Female
Maschio
Male
A
A
Unità
Unit
Descrizione
Description
Unità
Unit
Peso
Weight
B
B
C
C
D
D
E
E
FF
G
G
H
H
II
JJ
17
0,67
22
0,87
27
1,06
27
1,06
36
1,42
36
1,42
36
1,42
46
1,81
46
1,81
55
2,17
55
2,17
55
2,17
55
19
0,75
27
1,06
30
1,18
30
1,18
36
1,42
36
1,42
41
1,61
46
1,81
46
1,81
55
2,17
55
2,17
55
2,17
55
36,3
1,43
47,9
1,89
60
2,36
62,5
2,46
68
2,68
70,5
2,78
73
2,87
83,7
3,30
83,7
3,30
96,8
3,81
90
3,54
105
4,13
105
20
0,79
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
48
1,89
55
2,17
55
2,17
65
2,56
65
40
1,57
53,1
2,09
64,8
2,55
69,8
2,75
76,8
3,02
83,8
3,30
84
3,31
95,8
3,77
98,8
3,89
104,8
4,13
105,8
4,17
125,1
4,93
125,1
68,4
2,69
90,2
3,55
108,8
4,28
116,3
4,58
127,5
5,02
137
5,39
139,4
5,49
157,5
6,20
160,5
6,32
178,6
7,03
172,8
6,80
206,8
8,14
206,8
18,5
0,73
23,8
0,94
29
1,14
29
1,14
40
1,57
40
1,57
38,5
1,52
49,8
1,96
49,8
1,96
59,8
2,35
59,8
2,35
59,8
2,35
59,8
20,5
0,81
29
1,14
32
1,26
32
1,26
40
1,57
40
1,57
44,8
1,76
49,8
1,96
49,8
1,96
59,8
2,35
59,8
2,35
65
2,56
65
11,6
0,46
16,1
0,63
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
30
1,18
36
1,42
36
1,42
44
1,73
44
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
0,038
0,08
0,088
0,19
0,150
0,33
0,138
0,30
0,295
0,65
0,273
0,60
0,292
0,64
0,535
1,18
0,473
1,04
0,900
1,98
0,700
1,54
1,130
2,49
1,105
0,073
0,16
0,187
0,41
0,273
0,60
0,278
0,61
0,452
1,00
0,469
1,03
0,631
1,39
0,960
2,12
0,931
2,05
1,430
3,15
1,312
2,89
2,090
4,61
2,100
A4 1/8 NPT
1/8
A7 1/4 NPT
1/4
A9 3/8 NPT
3/8
A9 1/2 NPT
1/2
A13 1/2 NPT
1/2
A13 3/4 NPT
3/4
A15 3/4 NPT
3/4
A17 3/4 NPT
3/4
A17 1 NPT
1
A21 1 NPT
1
A21 1-1/4
NPT
A25 1 NPT
1-1/4
A25 1-1/4
NPT
A30 1-1/2
NPT
1-1/4
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
1-1/2
Inch
mm
2,17
65
2,17
65
4,13
111,1
2,56
80
4,93
132,4
8,14
214,9
2,35
69,8
2,56
82
1,73
57
lb
Kg
2,44
1,665
4,63
3,140
Inch
2,56
2,56
4,37
3,15
5,21
8,46
2,75
3,23
2,24
lb
3,67
6,92
1
10
SERIES: A
OVERALL DIMENSIONS
FEMALE SAE THREAD (SAE J1926-1)
A4 3/16 SAE
A7 3/8 SAE
A9 3/8 SAE
A9 1/2 SAE
A9 5/8 SAE
A13 5/8 SAE
A13 3/4 SAE
A15 3/4 SAE
A17 3/4 SAE
A17 1 SAE
A21 1 SAE
A21 1-1/4
SAE
A25 1 SAE
A25 1-1/4
SAE
A30 1-1/2
SAE
3/824UNF
9/1618UNF
9/1618UNF
3/416UNF
7/814UNF
7/814UNF
1-1/1612UN
1-1/1612UN
1-1/1612UN
1-5/1612UN
1-5/1612UN
1-5/812UN
1-5/1612UN
1-5/812UN
1-7/812UN
Female
Femmina
Male
Maschio
A
A
Unit
Unità
Descrizione
Description
Unit
Unità
Peso
Weight
B
B
C
C
D
D
E
E
FF
G
G
H
H
II
JJ
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
17
0,67
22
0,87
27
1,06
27
1,06
30
1,18
36
1,42
36
1,42
36
1,42
46
1,81
46
1,81
55
2,17
55
2,17
55
19
0,75
27
1,06
30
1,18
30
1,18
30
1,18
36
1,42
36
1,42
41
1,61
46
1,81
46
1,81
55
2,17
55
2,17
55
36,3
1,43
50,9
2,00
60
2,36
62,5
2,46
65,5
2,58
70
2,76
72,5
2,85
73,0
2,87
83,7
3,30
83,7
3,30
96,8
3,81
90
3,54
105
20
0,79
28
1,10
32
1,26
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
48
1,89
55
2,17
55
2,17
65
40
1,57
56,1
2,21
64,8
2,55
69,8
2,75
71,8
2,83
78,8
3,10
83,8
3,30
84
3,31
98,8
3,89
98,8
3,89
104,8
4,13
105,8
4,17
125,1
68,4
2,69
96,2
3,79
108,8
4,28
116,3
4,58
121,3
4,78
131,5
5,18
139
5,47
139,4
5,49
160,5
6,32
160,5
6,32
178,6
7,03
172,8
6,80
206,8
18,5
0,73
23,8
0,94
29
1,14
29
1,14
32
1,26
40
1,57
40
1,57
38,5
1,52
49,8
1,96
49,8
1,96
59,8
2,35
59,8
2,35
59,8
20,5
0,81
29
1,14
32
1,26
32
1,26
32
1,26
40
1,57
40
1,57
44,8
1,76
49,8
1,96
49,8
1,96
59,8
2,35
59,8
2,35
65
11,6
0,46
16,1
0,63
19,7
0,78
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
30
1,18
36
1,42
36
1,42
44
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
0,038
0,08
0,091
0,20
0,084
0,19
0,145
0,32
0,165
0,36
0,294
0,65
0,277
0,61
0,295
0,65
0,520
1,15
0,467
1,03
0,890
1,96
0,706
1,56
1,130
0,075
0,17
0,200
0,44
0,273
0,60
0,285
0,63
0,275
0,61
0,456
1,01
0,462
1,02
0,625
1,38
0,985
2,17
0,928
2,05
1,415
3,12
1,320
2,91
2,090
Inch
mm
2,17
55
2,17
55
4,13
105
2,56
65
4,93
125,1
8,14
206,8
2,35
59,8
2,56
65
1,73
44
lb
Kg
2,49
1,085
4,61
2,070
Inch
mm
Inch
2,17
65
2,56
2,17
65
2,56
4,13
111,1
4,37
2,56
80
3,15
4,93
132,4
5,21
8,14
214,9
8,46
2,35
69,8
2,75
2,56
82
3,23
1,73
57
2,24
lb
Kg
lb
2,39
1,660
3,66
4,56
3,160
6,97
11
SERIES: FIRG
MAIN APPLICATIONS
“FIRG” is the “original one” of the
flat face coupling series. Created in
1983, the “FIRG” series has
represented a great innovation in
the quick couplings field. Used in a
wide range of hydraulic
applications, the “FIRG” series over
time has become the leading series
for the realization of ISO 16028
interchangeability. Based on the
durable performance and many
benefits the series offers, “FIRG”
series is most frequently used and
approved in the world-wide
hydraulic equipment
manufacturer’s market.
It finds approval in all the
applications where fluid loss and
contamination of the hydraulic
circuit needs to be eliminated.
• Hydraulic tools
• Vehicles
12
SERIES: FIRG
HTMA (size 10)
• Connection system: Pushing one half towards the other
• Disconnection system: Pulling back the sleeve of female
effect
balls to reduce the
Flat face valves
• Construction material: Carbon steel
• Balls: Hard steel 100 C6
• Seals on request: VITON or others
Swaged seal to prevent
extrusion at high flow rates
Special design PTFE “U”
seal for high resistance
against extrusion
BENEFITS
• Linear flow reduces internal turbulence and pressure drop, maintaining circuit efficiency in the entire system.
13
SERIES: FIRG
HOW TO USE
back the sleeve.
WARNING!
• Do not use the female coupling disconnected with impulse pressure.
PERFORMANCE
Description
Size
FIRG14
FIRG38-12
FIRG12A-34
FIRG34B
FIRG34A
FIRG100
FIRG114
FIRG112
FIRG200
Inch
1/4
3/8
1/2
5/8
3/4
3/4
1
1-1/2
2
Descrizione
Description
FIRG14
FIRG38-12
FIRG12A-34
FIRG34B
FIRG34A
FIRG100
FIRG114
FIRG112
FIRG200
ISO
Size
mm
6,3
10,0
12,5
16,0
19,0
19,0
25,0
-
Rated flow
l/min
12
23
45
74
100
100
189
288
379
GPM
3,18
6,10
11,93
19,61
26,50
26,50
50,09
76,32
100,44
Max. flow
suggested
l/min
GPM
24
6,36
46
12,19
90
23,85
148
39,22
170
45,05
200
53,00
378
100,17
750
198,75
1000
265,00
Max.
esercizio
Max.pressione
operatingdipressure
Accoppiato
Maschio
Femmina
Coupled
Male
Female
MPa
psi
MPa
psi
MPa
psi
30
4350
42
6090
12
1740
30
4350
30
4350
12
1740
25
3625
25
3625
10
1450
25
3625
22
3190
10
1450
33
4785
33
4785
33
4785
25
3625
20
2900
10
1450
25
3625
20
2900
10
1450
20
2900
27
3915
8
1160
20
2900
16
2320
8
1160
Connect force
N
140
150
160
180
270
240
310
390
470
Disconnect force
lbf
31,50
33,75
36,00
40,50
60,75
54,00
69,75
87,75
105,75
N
40
40
60
55
90
65
100
90
100
Accoppiato
Coupled
MPa
psi
120
17400
120
17400
100
14500
100
14500
100
14500
100
14500
100
14500
80
11600
80
11600
lbf
9,00
9,00
13,50
12,38
20,25
14,63
22,50
20,25
22,50
Spillage*
ml
0,006
0,012
0,020
0,026
0,032
0,032
0,035
0,050
0,100
Pressione
di scoppio
Burst pressure
Maschio
Femmina
Male
Female
MPa
psi
MPa
psi
126
18270
48
6960
120
17400
48
6960
100
14500
40
5800
88
12760
40
5800
100
14500
100
14500
80
11600
40
5800
80
11600
40
5800
80
11600
32
4640
64
9280
32
4640
- VITON seals: from -15°C to +180°C ( from +5 °F to +356 °F).
• Tests:
- The couplings have been tested at impulse with max. operating pressure for 100.000 impulses in according with
ISO 7241-2.
14
SERIES: FIRG
PRESSURE DROP
15
SERIES: FIRG
OVERALL DIMENSIONS
1/4
FIRG12
BSP
FIRG12A
BSP
FIRG34
BSP
FIRG34B
BSP
FIRG34A
BSP
1/2
FIRG100
BSP
FIRG114
BSP
FIRG112
BSP
FIRG200
BSP
3/8
1/2
3/4
3/4
3/4
1
1-1/4
1-1/2
2
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
C
D
D
E
E
FF
G
G
H
H
II
JJ
22
0,87
24
0,94
27
1,06
32
1,26
36
1,42
36
1,42
41
1,61
45
1,77
55
2,17
65
2,56
75
2,95
22
0,87
27
1,06
27
1,06
32
1,26
36
1,42
36
1,42
41
1,61
45
1,77
55
2,17
65
2,56
80
3,15
47,9
1,89
60
2,36
62,5
2,46
68
2,68
70,5
2,78
70,5
2,78
82,3
3,24
82,3
3,24
89,8
3,54
111,1
4,37
123,8
4,87
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
48
1,89
55
2,17
80
3,15
100
3,94
48,1
1,89
64,2
2,53
69,2
2,72
73,8
2,91
80,8
3,18
78,5
3,09
88,7
3,49
93,2
3,67
106
4,17
132,4
5,21
156,6
6,17
85,2
3,35
108,7
4,28
116,2
4,57
124,5
4,90
134
5,28
131,4
5,17
149
5,87
153,5
6,04
172,8
6,80
214,9
8,46
241,5
9,51
23,8
0,94
26
1,02
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
44,8
1,76
47,8
1,88
59,8
2,35
69,8
2,75
83,5
3,29
23,8
0,94
29
1,14
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
44,8
1,76
47,8
1,88
59,8
2,35
72
2,83
88,5
3,48
16,1
0,63
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
30
1,18
36
1,42
57
2,24
73
2,87
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,086
0,19
0,121
0,27
0,128
0,28
0,233
0,51
0,227
0,50
0,268
0,59
0,445
0,98
0,394
0,87
0,641
1,41
1,665
3,67
2,259
4,98
Female
Femmina
FIRG14
BSP
FIRG38
BSP
B
B
Male
Maschio
A
A
Unit
Unità
Descrizione
Description
Unit
Unità
Peso
Weight
0,140
0,31
0,235
0,52
0,237
0,52
0,375
0,83
0,413
0,91
0,479
1,06
0,750
1,65
0,767
1,69
1,215
2,68
2,820
6,22
5,100
11,24
16
SERIES: FIRG
OVERALL DIMENSIONS
FIRG14
NPT
FIRG38
NPT
1/4
FIRG12
NPT
FIRG12A
NPT
FIRG34
NPT
FIRG34B
NPT
FIRG34A
NPT
1/2
FIRG100
NPT
FIRG114
NPT
FIRG112
NPT
FIRG200
NPT
3/8
1/2
3/4
3/4
3/4
1
1-1/4
1-1/2
2
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
C
D
D
E
E
FF
G
G
H
H
II
JJ
22
0,87
24
0,94
27
1,06
32
1,26
36
1,42
36
1,42
41
1,61
45
1,77
55
2,17
65
2,56
75
2,95
22
0,87
27
1,06
27
1,06
32
1,26
36
1,42
36
1,42
41
1,61
45
1,77
55
2,17
65
2,56
80
3,15
47,9
1,89
60
2,36
62,5
2,46
68
2,68
70,5
2,78
70,5
2,78
82,3
3,24
82,3
3,24
89,8
3,54
111,1
4,37
123,8
4,87
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
48
1,89
55
2,17
80
3,15
100
3,94
48,1
1,89
64,2
2,53
69,2
2,72
73,8
2,91
80,8
3,18
78,5
3,09
88,7
3,49
93,2
3,67
106
4,17
132,4
5,21
156,6
6,17
85,2
3,35
108,7
4,28
116,2
4,57
124,5
4,90
134
5,28
131,4
5,17
149
5,87
153,5
6,04
172,8
6,80
214,9
8,46
241,5
9,51
23,8
0,94
26
1,02
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
44,8
1,76
47,8
1,88
59,8
2,35
69,8
2,75
83,5
3,29
23,8
0,94
29
1,14
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
44,8
1,76
47,8
1,88
59,8
2,35
72
2,83
88,5
3,48
16,1
0,63
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
30
1,18
36
1,42
57
2,24
73
2,87
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,088
0,19
0,123
0,27
0,130
0,29
0,236
0,52
0,234
0,52
0,273
0,60
0,450
0,99
0,405
0,89
0,662
1,46
1,670
3,68
2,259
4,98
Femmina
Female
B
B
Maschio
Male
A
A
Unità
Unit
Descrizione
Description
Unità
Unit
Weight
Peso
0,140
0,31
0,237
0,52
0,240
0,53
0,378
0,83
0,420
0,93
0,490
1,08
0,755
1,66
0,781
1,72
1,215
2,68
2,848
6,28
5,100
11,24
17
SERIES: FIRG
OVERALL DIMENSIONS
FIRG14
3/8 SAE
FIRG38
1/2 SAE
9/1618UNF
3/4-16
UNF
FIRG12
5/8 SAE
FIRG12A
5/8 SAE
FIRG34
SAE
FIRG34B
SAE
FIRG34A
SAE
7/8-14
UNF
7/8-14
UNF
1-1/1612 UN
1-1/1612 UN
1-1/1612 UN
FIRG100
SAE
FIRG114
SAE
FIRG112
SAE
FIRG200
SAE
1-5/1612 UN
1-5/812 UN
1-7/812 UN
2-1/212 UN
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
C
D
D
E
E
FF
G
G
H
H
II
JJ
22
0,87
27
1,06
30
1,18
32
1,26
36
1,42
36
1,42
41
1,61
45
1,77
55
2,17
65
2,56
75
2,95
22
0,87
27
1,06
30
1,18
32
1,26
36
1,42
36
1,42
41
1,61
45
1,77
55
2,17
65
2,56
80
3,15
50,9
2,00
62,5
2,46
64
2,52
70
2,76
72
2,83
72
2,83
82,3
3,24
82,3
3,24
89,8
3,54
111,1
4,37
123,8
4,87
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
48
1,89
55
2,17
80
3,15
100
3,94
53,1
2,09
69,2
2,72
71,2
2,80
76,3
3,00
83,3
3,28
83,5
3,29
88,7
3,49
93,2
3,67
106
4,17
132,4
5,21
156,6
6,17
93,2
3,67
116,2
4,57
119,7
4,71
129
5,08
138
5,43
137,9
5,43
149
5,87
153,5
6,04
172,8
6,80
214,9
8,46
241,5
9,51
23,8
0,94
29
1,14
32
1,26
33,8
1,33
38,5
1,52
38,5
1,52
44,8
1,76
47,8
1,88
59,8
2,35
69,8
2,75
83,5
3,29
23,8
0,94
29
1,14
32
1,26
33,8
1,33
38,5
1,52
38,5
1,52
44,8
1,76
47,8
1,88
59,8
2,35
72
2,83
88,5
3,48
16,1
0,63
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
30
1,18
36
1,42
57
2,24
73
2,87
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,091
0,20
0,140
0,31
0,146
0,32
0,231
0,51
0,231
0,51
0,267
0,59
0,440
0,97
0,394
0,87
0,641
1,41
1,655
3,65
2,259
4,98
Femmina
Female
B
B
Maschio
Male
A
A
Unità
Unit
Descrizione
Description
Unità
Unit
Peso
Weight
0,148
0,33
0,244
0,54
0,258
0,57
0,378
0,83
0,421
0,93
0,497
1,10
0,745
1,64
0,767
1,69
1,215
2,68
2,820
6,22
5,100
11,24
18
SERIES: APM
MAIN APPLICATIONS
The “APM” male flat face coupling
series is the Stucchi solution for the
manual connection with residual
pressure in the circuit. The couplings
have a triple valve system: double
internal pressure release valve and
the flat face valve.
This system easily allows the
connection of couplings with the
presence of high internal residual
pressure without fluid loss. Based on
this main feature, “APM” couplings
are the ideal solution to hydraulic
applications where there is the
requirement to connect the circuit
with internal residual pressure.
• Agricultural equipment
• Hydraulic tools
• Vehicles
19
SERIES: APM
• Interchangeability: ISO 16028 (from size 10 to 25) HTMA (size 10)
• Connection with residual pressure: Only in the APM
male coupling, the female coupling must be to drain
• Threads on request: Metrics DIN, ORFS or other
• Material: High grade carbon steel
• On request: different materials and seals
effect
Flat face valve
Modular structure
Double valve system to
release pressure
extrusion
Male body black zinc
plated for identification
BENEFITS
• Internal pressure release valve system allows manual connection with high internal residual pressure.
• The modular design allows flexibility with the range of port configurations.
20
SERIES: APM
HOW TO USE
back the sleeve.
WARNING!
• Do not couple-uncouple with flow in the circuit. Connection is allowed only with residual pressure trapped in
the circuit.
• When the couplings are disconnected, it is suggested to use the protection caps. The protection caps of
“FIRG-A” series are suitable with male couplings “APM”.
• It is important maintain a good cleanliness of circuit because a high grade of dirty could compromise the
function of the internal double valve.
PERFORMANCE
Description
Size
ISO
Size
APM9
APM13
APM15
APM17
APM21
APM30
Inch
3/8
1/2
5/8
3/4
1
1-1/2
mm
10,0
12,5
16,0
19,0
25,0
-
Description
APM9
APM13
APM15
APM17
APM21
APM30
Rated Flow
l/min
23
45
74
100
189
288
GPM
6,10
11,93
19,61
26,50
50,09
76,32
Max. operating pressure
Coupled °
Male
MPa
psi
MPa
psi
35
5075
35
5075
33
4785
33
4785
33
4785
33
4785
33
4785
33
4785
30
4350
30
4350
27
3915
27
3915
Max. flow
suggested
l/min
46
90
148
200
378
750
GPM
12,19
23,85
39,22
53,00
100,17
198,75
Connect force°
without
pressure
N
lbf
165
37,13
190
42,75
160
36,00
260
58,50
300
67,50
440
99,00
Disconnect°
force
N
40
70
50
80
90
80
Burst pressure
Coupled °
Male
MPa
psi
MPa
psi
100
14500
120
17400
100
14500
120
17400
100
14500
120
17400
100
14500
120
17400
80
11600
100
14500
80
11600
100
14500
lbf
9,00
15,75
11,25
18,00
20,25
18,00
Spillage *
ml
0,016
0,010
1,200
0,180
0,180
0,400
Max. residual
pressure
MPa
30
30
30
25
25
20
psi
4350
4350
4350
3625
3625
2900
° Tested with female couplings “A” series
THEORETICAL CALCULATION OF CONNECT FORCE WITH RESIDUAL PRESSURE:
Fp (N) = Fi + (Pm x 5)
Fi = Connection force without residual pressure (N)
Pm = Residual pressure in the male coupling (MPa)
EXAMPLE:
To connect the male coupling APM13 with 20 Mpa of residual pressure, it is necessary the following force:
Fp = Fi + (Pm x 5) = 190 + (20 x 5) = 290 N
• Tests:
- The couplings have been tested at impulse with max. operating pressure for 100.000 impulses in according with ISO 7241-2.
21
SERIES: APM
PRESSURE DROP
22
SERIES: APM
OVERALL DIMENSIONS
APM9
3/8 BSP
APM9
1/2 BSP
3/8
APM13
1/2 BSP
APM13
3/4 BSP
APM15
3/4 BSP
APM17
1 BSP
APM21
1-1/4 BSP
1/2
APM30
1-1/2 BSP
1/2
3/4
3/4
1
1-1/4
1-1/2
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
C
D
D
E
E
FF
G
G
H
H
II
JJ
27
1,06
27
1,06
36
1,42
36
1,42
36
1,42
46
1,81
55
2,17
70
2,76
-
80
3,15
82,5
3,25
91
3,58
93,5
3,68
95
3,74
108,5
4,27
123,5
4,86
146,9
5,78
-
-
(F+D)-16
(F+D)-0,630
(F+D)-16
(F+D)-0,630
(F+D)-17,3
(F+D)-0,681
(F+D)-17,3
(F+D)-0,681
(F+D)-17,6
(F+D)-0,693
(F+D)-22
(F+D)-0,866
(F+D)-23
(F+D)-0,906
(F+D)-28,6
(F+D)-1,126
29
1,14
29
1,14
38,5
1,52
38,5
1,52
38,5
1,52
49,8
1,96
59,8
2,35
75,8
2,98
-
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
36
1,42
57
2,24
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,197
0,43
0,195
0,43
0,408
0,90
0,404
0,89
0,426
0,94
0,750
1,65
1,160
2,56
2,580
5,69
Femmina
Female
B
B
Maschio
Male
A
A
Unità
Unit
Descrizione
Description
Unit
Unità
Weight
Peso
-
23
SERIES: APM
OVERALL DIMENSIONS
APM9
3/8 NPT
APM9
1/2 NPT
3/8
APM13
1/2 NPT
APM13
3/4 NPT
APM15
3/4 NPT
APM17
1 NPT
APM21
1-1/4 NPT
1/2
APM30
1-1/2 NPT
1/2
3/4
3/4
1
1-1/4
1-1/2
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
C
D
D
E
E
FF
G
G
H
H
II
JJ
27
1,06
27
1,06
36
1,42
36
1,42
36
1,42
46
1,81
55
2,17
70
2,76
-
80
3,15
82,5
3,25
91
3,58
93,5
3,68
95
3,74
108,5
4,27
123,5
4,86
146,9
5,78
-
-
(F+D)-16
(F+D)-0,630
(F+D)-16
(F+D)-0,630
(F+D)-17,3
(F+D)-0,681
(F+D)-17,3
(F+D)-0,681
(F+D)-17,6
(F+D)-0,693
(F+D)-22
(F+D)-0,866
(F+D)-23
(F+D)-0,906
(F+D)-28,6
(F+D)-1,126
29
1,14
29
1,14
38,5
1,52
38,5
1,52
38,5
1,52
49,8
1,96
59,8
2,35
75,8
2,98
-
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
36
1,42
57
2,24
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,210
0,46
0,205
0,45
0,430
0,95
0,415
0,91
0,435
0,96
0,760
1,68
1,200
2,65
2,595
5,72
Femmina
Female
B
B
Maschio
Male
A
A
Unità
Unit
Descrizione
Description
Unità
Unit
Peso
Weight
-
24
SERIES: APM
OVERALL DIMENSIONS
APM9
1/2 SAE
APM13
5/8 SAE
3/416UNF
7/814UNF
APM13
3/4 SAE
APM15
3/4 SAE
APM17
1 SAE
APM21
1-1/4 SAE
APM30
1-1/2 SAE
1-1/1612UN
1-1/1612UN
1-5/1612UN
1-5/812UN
1-7/812UN
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
C
D
D
E
E
FF
G
G
H
H
II
JJ
27
1,06
36
1,42
36
1,42
36
1,42
46
1,81
55
2,17
70
2,76
-
82,5
3,25
91,0
3,58
93,5
3,68
95,0
3,74
108,5
4,27
123,5
4,86
146,9
5,78
-
-
(F+D)-16
(F+D)-0,630
(F+D)-17,3
(F+D)-0,681
(F+D)-17,3
(F+D)-0,681
(F+D)-17,6
(F+D)-0,693
(F+D)-22
(F+D)-0,866
(F+D)-23
(F+D)-0,906
(F+D)-28,6
(F+D)-1,126
29
1,14
38,5
1,52
38,5
1,52
38,5
1,52
49,8
1,96
59,8
2,35
75,8
2,98
-
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
36
1,42
57
2,24
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,205
0,45
0,413
0,91
0,400
0,88
0,425
0,94
0,755
1,66
1,185
2,61
2,580
5,69
Femmina
Female
B
B
Maschio
Male
A
A
Unità
Unit
Descrizione
Description
Unità
Unit
Weight
Peso
-
25
SERIES: VP-P
INTERCHANGE: Stucchi internal specification
MAIN APPLICATIONS
The “VP-P” screw flat face coupling
series is the technological solution
to demanding hydraulic
applications.
The screw connection system
eliminates premature wear and the
“brinelling” caused by a
mechanical locking ball system.
This makes the “VP-P” series
suitable for high operating and
impulse pressures.
The triple valve system allows
connection of the coupling safely
even in presence of high internal
residual pressure and at the same
time avoiding fluid loss. The safety
sleeve integrated in the connection
system prevents accidental
disconnection making the “VP-P”
series ideal for the most extreme
operating conditions where strong
vibration and torsion issues
are present.
• Hydraulic equipment
• Drilling rigs
• Vehicles
26
SERIES: VP-P
• Interchangeability: Stucchi internal specification
• Mechanical connection: Screw system
• Connection system: Screw to connect
• Disconnection system: Unscrew to connect
• Connection with residual pressure: Allowed in the male
coupling, female coupling or both.
• Disconnection with residual pressure: Allowed
• Threads on request: Metrics DIN, ORFS or others
• Construction material: High grade
carbon steel.
Threaded zone treatment:
nitriding + oxidation (QPQ)
• Other Surface treatment: Zinc plated
• Balls: Hard steel 100 C6
• Seals: standard in NBR (Nitrile),
PUR (Polyurethane), POM (Delrin)
Screw connection
system eliminates
premature wear
Safety sleeve to
prevent accidental
disconnection
Modular structure
Modular structure
Double valve system
to release
pressure
Flat face valves
Special seal to prevent
extrusion at high flow
rates and during
connection with residual
pressure
BENEFITS
• Flat face is easy to clean, helping to reduce the inclusion of contamination in the hydraulic circuit.
• Internal flow of valve design creates minimal pressure drop, maintaining circuit efficiency in the system.
• Internal pressure release valve system allows an easy connection with high internal residual pressure.
• The safety sleeve integrated in the connection system prevents the accidental disconnection.
• The modular design allows for broad range of port configurations.
27
SERIES: VP-P
HOW TO USE
• Before connecting clean the flat mating surface of coupling to avoid inclusion of contamination in the circuit.
• To couple align the female coupling to the male coupling, push the male and twist in one motion to catch the first
thread on the female half and continue to thread together.
The screwing of the threads should be done by hand without the use of the tools for the first part of the
connection.
The use of tools for the second part of connection can be necessary if there is high residual pressure in the circuit.
Thread the mating halves until the sleeve lock clicks into position. This activates the safety lock and eliminates
accidental disconnection of the coupling.
• To uncouple pull the locking sleeve towards the male coupling and unthread the connection.
The tighten is disengaged after one complete rotation of the coupler, continue to unthread until both halves
disconnect.
If safety lock sleeve will not pull back rotate the male coupling to couple direction until the sleeve will pull back.
WARNING!
• Do not couple-uncouple with flow in the circuit. Connection only allowed with residual pressure.
• Do not disconnect the coupling without pulling back the safety sleeve.
• It is important to limit contamination in the circuit to avoid compromising the function of the internal valves.
PERFORMANCE
Description
Size
ISO
Size
VP7
VP9P
VP13P
VP15P
VP17P
VP21P
VP30P
Inch
1/4
3/8
1/2
5/8
3/4
1
1-1/2
mm
-
Description
Descrizione
VP7
VP9P
VP13P
VP15P
VP17P
VP21P
VP30P
l/min
12
23
45
74
100
189
288
GPM
3,18
6,10
11,93
19,61
26,50
50,09
76,32
Max. flow
suggested
l/min
24
46
90
148
200
378
750
GPM
6,36
12,19
23,85
39,22
53,00
100,17
198,75
Max.
operating
Max. pressione
di pressure
esercizio
Coupled
Male
Female
Accoppiato
Maschio
Femmina
MPa
psi
MPa
psi
MPa
psi
60
8700
60
8700
42
6090
55
7975
55
7975
33
4785
55
7975
55
7975
33
4785
55
7975
55
7975
33
4785
50
7250
50
7250
33
4785
47
6815
47
6815
30
4350
40
5800
40
5800
27
3915
Description
Max. residual pressure
during connection
Male
Female to drain
VP7
VP9P
VP13P
VP15P
VP17P
VP21P
VP30P
Rated flow
MPa
30
25
25
25
25
25
25
psi
4350
3625
3625
3625
3625
3625
3625
Female
Male to drain
MPa
30
25
25
25
25
25
25
psi
4350
3625
3625
3625
3625
3625
3625
Male and
Female
MPa
25
25
20
20
15
15
5
psi
3625
3625
2900
2900
2175
2175
725
Connect °
torque
Nm
0,6
0,8
1,1
1,1
2,0
2,2
6,5
Disconnect °
torque
lbf ft
0,44
0,59
0,81
0,81
1,47
1,62
4,79
Nm
0,4
0,5
1,0
1,0
1,4
1,8
3,2
Coupled
Accoppiato
MPa
psi
150
21750
140
20300
140
20300
140
20300
125
18125
120
17400
110
15950
lbf ft
0,29
0,37
0,74
0,74
1,03
1,33
2,36
Burst pressure
Pressione
di scoppio
Male
Maschio
MPa
psi
150
21750
140
20300
140
20300
140
20300
125
18125
120
17400
110
15950
Spillage *
ml
0,012
0,040
0,025
0,033
0,018
0,060
0,200
Female
Femmina
MPa
psi
126
18270
100
14500
100
14500
100
14500
100
14500
80
11600
80
11600
Max. residual
pressure during
disconnect
MPa
25
25
20
20
15
15
5
psi
3625
3625
2900
2900
2175
2175
725
° Connect torque and disconnect torque without residual pressure. The torque increase to increasing of
internal residual pressure.
* Spillage is an indicative value of the fluid loss per couple-uncouple cycle without residual pressure.
• Temperature range: Standard seals NBR, PUR, POM from -20 °C to +100 °C ( from -4 °F to +212 °F).
• Note: VP7 has metal to metal sealing system in the internal valve of male and in the valve of female coupling.
• Tests:
- The couplings have been tested at max. operating pressure for 100’000 impulses in according with ISO 7241-2.
28
SERIES: VP-P
PRESSURE DROP
29
SERIES: VP-P
OVERALL DIMENSIONS
3/8
1/2
1/2
3/4
3/4
3/4
1
1
1-1/4
1-1/4
1-1/2
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
D
E
F
G
I
M
P
22
0,87
27
1,06
27
1,06
36
1,42
36
1,42
36
1,42
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
27
1,06
30
1,18
30
1,18
36
1,42
36
1,42
41
1,61
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
83,9
3,30
94,5
3,72
94,5
3,72
110
4,33
110
4,33
110
4,33
127,1
5,00
127,1
5,00
137
5,39
137
5,39
174,7
6,88
174,7
6,88
M24x2
M28x2
M28x2
M36x3
M36x3
M39x3
M45x3
M45x3
M55x3
M55x3
M72x4
M72x4
-
52,8
2,08
64,3
2,53
69,3
2,73
76,2
3,00
83,2
3,28
83,4
3,28
96
3,78
98
3,86
104
4,09
105
4,13
132,2
5,20
132,2
5,20
125,2
4,93
142,3
5,60
147,3
5,80
167,9
6,61
174,9
6,89
174,9
6,89
200,5
7,89
202,5
7,97
213,8
8,42
214,8
8,46
271,3
10,68
271,3
10,68
29
1,14
32
1,26
32
1,26
40
1,57
40
1,57
44,8
1,76
49,8
1,96
49,8
1,96
59,8
2,35
59,8
2,35
85
3,35
85
3,35
35
1,38
42
1,65
42
1,65
49
1,93
49
1,93
52
2,05
60
2,36
60
2,36
76
2,99
76
2,99
94
3,70
94
3,70
32
1,26
38
1,50
38
1,50
45
1,77
45
1,77
48
1,89
55
2,17
55
2,17
70
2,76
70
2,76
85
3,35
85
3,35
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Female
1/4
B
Male
VP7
1/4 BSP
VP9P
3/8 BSP
VP9P
1/2 BSP
VP13P
1/2 BSP
VP13P
3/4 BSP
VP15P
3/4 BSP
VP17P
3/4 BSP
VP17P
1 BSP
VP21P
1 BSP
VP21P
1-1/4 BSP
VP30P
1-1/4 BSP
VP30P
1-1/2 BSP
A
Unit
Description
Unit
Weight
0,393
0,87
0,595
1,31
0,575
1,27
0,980
2,16
0,945
2,08
1,055
2,33
1,635
3,60
1,585
3,49
2,610
5,75
2,510
5,53
5,220
11,51
5,120
11,29
0,160
0,35
0,240
0,53
0,245
0,54
0,420
0,93
0,440
0,97
0,580
1,28
0,955
2,11
0,905
2,00
1,495
3,30
1,395
3,08
3,030
6,68
2,930
6,46
30
SERIES: VP-P
OVERALL DIMENSIONS
1/4
VP9P
1/2 NPT
VP13P
1/2 NPT
VP13P
3/4 NPT
VP15P
3/4 NPT
VP17P
3/4 NPT
1/2
VP17P
1 NPT
VP21P
1 NPT
VP21P
1-1/4 NPT
VP30P
1-1/4 NPT
1
VP30P
1-1/2 NPT
3/8
1/2
3/4
3/4
3/4
1
1-1/4
1-1/4
1-1/2
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
D
E
F
G
I
M
P
22
0,87
27
1,06
27
1,06
36
1,42
36
1,42
36
1,42
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
27
1,06
30
1,18
30
1,18
36
1,42
36
1,42
41
1,61
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
85,3
3,36
94,5
3,72
94,5
3,72
110
4,33
110
4,33
110
4,33
127,1
5,00
127,1
5,00
137
5,39
137
5,39
174,7
6,88
174,7
6,88
M24x2
M28x2
M28x2
M36x3
M36x3
M39x3
M45x3
M45x3
M55x3
M55x3
M72x4
M72x4
-
52,8
2,08
64,3
2,53
69,3
2,73
76,2
3,00
83,2
3,28
83,4
3,28
95
3,74
98
3,86
104
4,09
108,3
4,26
132,2
5,20
132,2
5,20
126,6
4,98
142,3
5,60
147,3
5,80
167,9
6,61
174,9
6,89
174,9
6,89
199,5
7,85
202,5
7,97
213,8
8,42
218,1
8,59
271,3
10,68
271,3
10,68
29
1,14
32
1,26
32
1,26
40
1,57
40
1,57
44,8
1,76
49,8
1,96
49,8
1,96
59,8
2,35
59,8
2,35
85
3,35
85
3,35
35
1,38
42
1,65
42
1,65
49
1,93
49
1,93
52
2,05
60
2,36
60
2,36
76
2,99
76
2,99
94
3,70
94
3,70
32
1,26
38
1,50
38
1,50
45
1,77
45
1,77
48
1,89
55
2,17
55
2,17
70
2,76
70
2,76
85
3,35
85
3,35
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Female
VP7
1/4 NPT
VP9P
3/8 NPT
B
Male
A
Unit
Description
Unit
Weight
0,395
0,87
0,595
1,31
0,575
1,27
0,980
2,16
0,945
2,08
1,065
2,35
1,635
3,60
1,600
3,53
2,610
5,75
2,530
5,58
5,220
11,51
5,100
11,24
0,165
0,36
0,240
0,53
0,245
0,54
0,425
0,94
0,440
0,97
0,595
1,31
0,955
2,11
0,915
2,02
1,495
3,30
1,430
3,15
3,030
6,68
2,930
6,46
31
SERIES: VP-P
OVERALL DIMENSIONS
9/1618UNF
3/416UNF
VP9P
5/8 SAE
VP13P
5/8 SAE
VP13P
3/4 SAE
VP15P
3/4 SAE
VP17P
3/4 SAE
7/814UNF
7/814UNF
1-1/1612UN
1-1/1612UN
1-1/1612UN
VP17P
1 SAE
VP21P
1 SAE
VP21P
1-1/4 SAE
VP30P
1-1/4 SAE
1-5/1612UN
1-5/1612UN
1-5/812UN
1-5/812UN
VP30P
1-1/2 SAE
1-7/812UN
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
D
E
F
G
I
M
P
27
1,06
27
1,06
30
1,18
36
1,42
36
1,42
36
1,42
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
30
1,18
30
1,18
30
1,18
36
1,42
36
1,42
41
1,61
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
94,5
3,72
94,5
3,72
104,5
4,11
110
4,33
110
4,33
110
4,33
129,1
5,08
127,1
5,00
137
5,39
137
5,39
174,7
6,88
174,7
6,88
M28x2
M28x2
M28x2
M36x3
M36x3
M39x3
M45x3
M45x3
M55x3
M55x3
M72x4
M72x4
-
64,3
2,53
69,3
2,73
71,3
2,81
78,2
3,08
83,2
3,28
83,4
3,28
98
3,86
98
3,86
104
4,09
105
4,13
132,2
5,20
132,2
5,20
142,3
5,60
147,3
5,80
159,3
6,27
169,9
6,69
174,9
6,89
174,9
6,89
204,5
8,05
202,5
7,97
213,8
8,42
214,8
8,46
271,3
10,68
271,3
10,68
32
1,26
32
1,26
32
1,26
40
1,57
40
1,57
44,8
1,76
49,8
1,96
49,8
1,96
59,8
2,35
59,8
2,35
85
3,35
85
3,35
42
1,65
42
1,65
42
1,65
49
1,93
49
1,93
52
2,05
60
2,36
60
2,36
76
2,99
76
2,99
94
3,70
94
3,70
38
1,50
38
1,50
38
1,50
45
1,77
45
1,77
48
1,89
55
2,17
55
2,17
70
2,76
70
2,76
85
3,35
85
3,35
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Female
VP9P
3/8 SAE
VP9P
1/2 SAE
B
Male
A
Unit
Description
Unit
Weight
0,600
1,32
0,585
1,29
0,615
1,36
0,980
2,16
0,930
2,05
1,045
2,30
1,635
3,60
1,580
3,48
2,610
5,75
2,500
5,51
5,220
11,51
5,120
11,29
0,245
0,54
0,250
0,55
0,245
0,54
0,420
0,93
0,430
0,95
0,575
1,27
0,955
2,11
0,895
1,97
1,495
3,30
1,400
3,09
3,030
6,68
2,920
6,44
32
SERIES: VEP-P
MAIN APPLICATIONS
The “VEP-P” screw flat face
coupling series is the Stucchi
solution for hydraulic applications
requiring high operating pressures and
connection with residual
pressure trapped in the circuit.
The screw connection system
eliminates the premature wear or
“brinnelling” typically associated with
locking ball connection
systems when used in high impulse
circuits. The triple valve system
allows connection of the coupling
safely even in the presence of high
internal residual pressure and
at the same time eliminates
fluid loss during the
connection-disconnection process.
• Drilling rigs
• Vehicles
33
SERIES: VEP-P
• Disconnection system: Unscrew to disconnect
• Connection with residual pressure: Pressure in the male
• Threads on request: Metrics DIN, ORFS or others
• Construction material: High grade
carbon steel.
Threaded zone treatment:
• Other surface treatment: Zinc plated
Modular structure
Screw connection
system eliminates
premature wear
Modular structure
release pressure
Flat face valves
extrusion at high
flow rates
and during connection
with residual pressure
BENEFITS
• Flat face is easy to clean, helping to reduce the inclusion of contamination in the hydraulic circuit.
• High resistance with impulse pressures.
34
SERIES: VEP-P
HOW TO USE
• To couple pull forward the connection sleeve of the female coupling. Align the female and male coupling holding forward
the connection sleeve and thread together turning the sleeve.
Keep couplers aligned during connection process. Do not push to connect couplings.
The screwing of the threads should be done by hand without the use of the tools for the first part of the connection.
Screw the connecting sleeve of the female until metal surface contact with the male coupling is complete.
Tighten the sleeve to the base of the male using the tightening torque spec. as indicated in the table below.
• To uncouple turn sleeve from contact position using a wrench, then unscrew making sure the couplings stay aligned
through the entire process.
WARNING!
PERFORMANCE
Descrizione
Description
Size
Size
ISO
ISO
Size
Size
VEP7
VEP9P
VEP13P
VEP15P
VEP17P
VEP21P
VEP30P
VEP45P
Inch
1/4
3/8
1/2
5/8
3/4
1
1-1/2
2
mm
-
Description
Descrizione
VEP7
VEP9P
VEP13P
VEP15P
VEP17P
VEP21P
VEP30P
VEP45P
Descrizione
Description
VEP7
VEP9P
VEP13P
VEP15P
VEP17P
VEP21P
VEP30P
VEP45P
Portata
nominale
Rated
flow
l/min
12
23
45
74
100
189
288
379
GPM
3,18
6,10
11,93
19,61
26,50
50,09
76,32
100,44
Max.
Max.portata
flow
suggerita
suggested
l/min
24
46
90
148
200
378
750
1000
GPM
6,36
12,19
23,85
39,22
53,00
100,17
198,75
265,00
Max.
operating
Max. pressione
di pressure
esercizio
Coupled
Male
Female
Accoppiato
Maschio
Femmina
MPa
psi
MPa
psi
MPa
psi
60
8700
60
8700
42
6090
55
7975
55
7975
33
4785
55
7975
55
7975
33
4785
55
7975
55
7975
33
4785
50
7250
50
7250
33
4785
47
6815
47
6815
30
4350
40
5800
40
5800
27
3915
35
5075
35
5075
27
3915
Coppia
Tightening
di torque
serraggio
Nm
Nm
40-50
50 -60
65-75
70-80
90-110
125-145
155-175
320-350
lbf ft
lbf
ft
29-37
37-44
48-55
52-59
66-81
92-107
114-129
236-258
Coppia ° °
Connect
accoppiamento
torque
Nm
2,8
2,2
1,8
3,0
5,6
8,2
26,0
40,0
lbf ft
2,06
1,62
1,33
2,21
4,13
6,04
19,16
29,48
Coupled
Accoppiato
MPa
psi
150
21750
140
20300
140
20300
140
20300
125
18125
120
17400
110
15950
110
15950
Coppia ° °
Disconnect
disaccoppiamento
torque
Nm
1,9
1,4
1,4
1,8
3,6
5,8
12,5
40,0
lbf ft
1,40
1,03
1,03
1,33
2,65
4,27
9,21
29,48
Burst pressure
Pressione
di scoppio
Male
Maschio
MPa
150
140
140
140
125
120
110
110
Max.residual
pressionepressure
residua
Max.
durante
duringaccoppiamento
connection
Maschio
Femmina
Maschio
e
Male
Female
Male
and
Fem. a to
scarico
Mas. ato
scarico
Femmina
Female
drain
Male
drain
Female
Mpa
psi
MPa
psi
MPa
psi
Mpa
psi
MPa
psi
MPa
psi
30
4350
30
4350
25
3625
25
3625
25
3625
25
3625
25
3625
25
3625
20
2900
25
3625
25
3625
20
2900
25
3625
25
3625
15
2175
25
3625
25
3625
15
2175
25
3625
25
3625
5
725
25
3625
20
2900
2
290
Spillamento*
Spillage *
psi
21750
20300
20300
20300
18125
17400
15950
15950
ml
0,012
0,040
0,025
0,033
0,018
0,060
0,200
0,350
Female
Femmina
MPa
psi
126
18270
100
14500
100
14500
100
14500
100
14500
80
11600
80
11600
80
11600
Max. pressione
Max.
residual
residua durante
pressure
during
disaccoppiamento
disconnection
MPa
MPa
25
25
20
20
15
15
5
2
psi
psi
3625
3625
2900
2900
2175
2175
725
290
• Note: VEP7 has metal to metal sealing system in the internal valve of male and in the valve of female coupling.
• Tests:
The VEP45P coupled and male have been tested for 1’000’000 impulses.
35
SERIES: VEP-P
PRESSURE DROP
36
SERIES: VEP-P
OVERALL DIMENSIONS
1/4
3/8
VEP9P
1/2 BSP
VEP13P
1/2 BSP
VEP13P
3/4 BSP
VEP15P
3/4 BSP
VEP17P
3/4 BSP
1/2
VEP17P
1 BSP
VEP21P
1 BSP
VEP21P
1-1/4 BSP
VEP30P
1-1/4 BSP
1
VEP30P
1-1/2 BSP
VEP45P
2 BSP
1/2
3/4
3/4
3/4
1
1-1/4
1-1/4
1-1/2
2
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
D
E
F
G
M
N
Q
22
0,87
27
1,06
27
1,06
36
1,42
36
1,42
36
1,42
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
90
3,54
27
1,06
30
1,18
30
1,18
36
1,42
36
1,42
41
1,61
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
90
3,54
71
2,80
82,5
3,25
85
3,35
95
3,74
97,4
3,83
99
3,90
113,6
4,47
113,6
4,47
123,4
4,86
123,4
4,86
150
5,91
150
5,91
218,4
8,60
38,8
1,53
41,8
1,65
41,8
1,65
49,8
1,96
49,8
1,96
53,8
2,12
58,8
2,31
58,8
2,31
69,8
2,75
69,8
2,75
92
3,62
92
3,62
200
7,87
54,1
2,13
65,8
2,59
70,8
2,79
77,8
3,06
84,8
3,34
84,9
3,34
97,7
3,85
99,7
3,93
105,8
4,17
106,8
4,20
133,5
5,26
133,5
5,26
224,8
8,85
113,3
4,46
131,3
5,17
138,8
5,46
154,6
6,09
164
6,46
165,4
6,51
188,5
7,42
190,5
7,50
205,2
8,08
206,2
8,12
253,9
10,00
253,9
10,00
383,5
15,10
34,8
1,37
37,8
1,49
37,8
1,49
45,8
1,80
45,8
1,80
49,8
1,96
54,8
2,16
54,8
2,16
64,5
2,54
64,5
2,54
89,8
3,54
89,8
3,54
145
5,71
M30x2
M33x2
M33x2
M40x3
M40x3
M45x3
M50x3
M50x3
M58x3
M58x3
M80x4
M80x4
M130x6
-
36
1,42
38
1,50
38
1,50
46
1,81
46
1,81
50
1,97
55
2,17
55
2,17
65
2,56
65
2,56
85
3,35
85
3,35
-
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Female
VEP7
1/4 BSP
VEP9P
3/8 BSP
B
Male
A
Unit
Description
Unit
Weight
0,233
0,51
0,325
0,72
0,320
0,71
0,600
1,32
0,580
1,28
0,670
1,48
1,065
2,35
1,015
2,24
1,540
3,40
1,440
3,17
3,245
7,15
3,200
7,05
11,885
26,20
0,250
0,55
0,330
0,73
0,340
0,75
0,615
1,36
0,590
1,30
0,760
1,68
1,168
2,57
1,118
2,46
1,780
3,92
1,685
3,71
3,910
8,62
3,810
8,40
14,680
32,36
37
SERIES: VEP-P
OVERALL DIMENSIONS
1/4
VEP9P
1/2 NPT
VEP13P
1/2 NPT
VEP13P
3/4 NPT
VEP15P
3/4 NPT
VEP17P
3/4 NPT
1/2
VEP17P
1 NPT
VEP21P
1 NPT
VEP21P
1-1/4 NPT
VEP30P
1-1/4 NPT
1
VEP30P
1-1/2 NPT
VEP45P
2 NPT
3/8
1/2
3/4
3/4
3/4
1
1-1/4
1-1/4
1-1/2
2
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
D
E
F
G
M
N
Q
22
0,87
27
1,06
27
1,06
36
1,42
36
1,42
36
1,42
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
90
3,54
27
1,06
30
1,18
30
1,18
36
1,42
36
1,42
41
1,61
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
90
3,54
71
2,80
82,5
3,25
85
3,35
95
3,74
97,4
3,83
99
3,90
113,6
4,47
113,6
4,47
123,4
4,86
123,4
4,86
150
5,91
150
5,91
218,4
8,60
38,8
1,53
41,8
1,65
41,8
1,65
49,8
1,96
49,8
1,96
53,8
2,12
58,8
2,31
58,8
2,31
69,8
2,75
69,8
2,75
92
3,62
92
3,62
200
7,87
54,1
2,13
65,8
2,59
70,8
2,79
77,8
3,06
84,8
3,34
84,9
3,34
96,7
3,81
99,7
3,93
105,8
4,17
106,8
4,20
133,5
5,26
133,5
5,26
224,8
8,85
113,3
4,46
131,3
5,17
138,8
5,46
154,6
6,09
164
6,46
165,4
6,51
187,5
7,38
190,5
7,50
205,2
8,08
206,2
8,12
253,9
10,00
253,9
10,00
383,5
15,10
34,8
1,37
37,8
1,49
37,8
1,49
45,8
1,80
45,8
1,80
49,8
1,96
54,8
2,16
54,8
2,16
64,5
2,54
64,5
2,54
89,8
3,54
89,8
3,54
145
5,71
M30x2
M33x2
M33x2
M40x3
M40x3
M45x3
M50x3
M50x3
M58x3
M58x3
M80x4
M80x4
M130x6
-
36
1,42
38
1,50
38
1,50
46
1,81
46
1,81
50
1,97
55
2,17
55
2,17
65
2,56
65
2,56
85
3,35
85
3,35
-
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Female
VEP7
1/4 NPT
VEP9P
3/8 NPT
B
Male
A
Unit
Description
Unit
Weight
0,235
0,52
0,325
0,72
0,320
0,71
0,605
1,33
0,590
1,30
0,690
1,52
1,065
2,35
1,025
2,26
1,540
3,40
1,465
3,23
3,245
7,15
3,180
7,01
11,670
25,73
0,250
0,55
0,335
0,74
0,345
0,76
0,635
1,40
0,600
1,32
0,765
1,69
1,168
2,57
1,115
2,46
1,780
3,92
1,700
3,75
3,910
8,62
3,840
8,47
14,760
32,54
38
SERIES: VEP-P
OVERALL DIMENSIONS
9/1618UNF
3/416UNF
1-1/1612UN
1-1/1612UN
1-1/1612UN
1-5/1612UN
1-5/1612UN
1-5/812UN
1-5/812UN
1-7/812UN
2-1/212UN
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
C
D
E
F
G
M
N
Q
22
0,87
27
1,06
36
1,42
36
1,42
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
90
3,54
27
1,06
30
1,18
36
1,42
41
1,61
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
90
3,54
72,8
2,87
87
3,43
100,4
3,95
102
4,02
115,6
4,55
113,6
4,47
125,4
4,94
123,4
4,86
150
5,91
150
5,91
218,4
8,60
38,8
1,53
41,8
1,65
49,8
1,96
53,8
2,12
58,8
2,31
58,8
2,31
69,8
2,75
69,8
2,75
92
3,62
92
3,62
200
7,87
57,1
2,25
70,8
2,79
84,8
3,34
84,9
3,34
99,7
3,93
99,7
3,93
105,8
4,17
106,8
4,20
133,5
5,26
133,5
5,26
224,8
8,85
118,1
4,65
140,8
5,54
167
6,57
168,4
6,63
192,5
7,58
190,5
7,50
207,2
8,16
206,2
8,12
253,9
10,00
253,9
10,00
383,5
15,10
34,8
1,37
37,8
1,49
45,8
1,80
49,8
1,96
54,8
2,16
54,8
2,16
64,5
2,54
64,5
2,54
89,8
3,54
89,8
3,54
145
5,71
M30x2
M33x2
M40x3
M45x3
M50x3
M50x3
M58x3
M58x3
M80x4
M80x4
M130x6
-
36
1,42
38
1,50
46
1,81
50
1,97
55
2,17
55
2,17
65
2,56
65
2,56
85
3,35
85
3,35
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,00
Female
VEP7
3/8 SAE
VEP9P
1/2 SAE
VEP13P
3/4 SAE
VEP15P
3/4 SAE
VEP17P
3/4 SAE
VEP17P
1 SAE
VEP21P
1 SAE
VEP21P
1-1/4 SAE
VEP30P
1-1/4 SAE
VEP30P
1-1/2 SAE
VEP45P
2 SAE
B
Male
A
Unit
Description
Unit
Weight
0,233
0,51
0,330
0,73
0,585
1,29
0,675
1,49
1,065
2,35
1,010
2,23
1,540
3,40
1,460
3,22
3,245
7,15
3,155
6,96
11,885
26,20
0,250
0,55
0,345
0,76
0,580
1,28
0,585
1,29
1,168
2,57
1,115
2,46
1,780
3,92
1,680
3,70
3,910
8,62
3,815
8,41
14,680
32,36
39
SERIES: VEP-HD
MAIN APPLICATIONS
The “VEP-HD” screw flat face
coupling series is another example
of the continuous improvement
of Stucchi products. Designed for
heavy duty applications with high
operating pressure, high impulse
frequency, and mechanical stress.
The “VEP-HD” couplings are
manufactured in high resistance
carbon steel material treated with
special nitriding treatment to
increase the wear resistance
of the coupling.
This series has been tested to
1’000’ 000 impulse cycles.
The triple valve system allows a
connection of the coupling safely
even in presence of high internal
residual pressure and at the same
time avoiding fluid loss during the
connection-disconnection process.
• Drilling rigs • Vehicles
40
SERIES: VEP-HD
• Disconnection system: Unscrew to disconnect • Connection with residual pressure: Allowed in the male
• Threads on request: Flange ports, ORFS or others
carbon steel.
Thread zone treatment:
• Surface treatment: Zinc plated
Strong structure of
connection sleeve
Screw connection
system eliminates
premature wear
Modular structure
Modular structure
Flat face valves
release pressure
Strong structure of
male body
extrusion at high
flow rates
and during connection
with residual pressure
BENEFITS
• Optimal resistance at impulse pressures.
41
SERIES: VEP-HD
HOW TO USE
• To couple pull forward the connection sleeve of the female coupling. Align the female and male coupling
holding forward the connection sleeve and thread together turning the sleeve.
Keep couplers aligned during connection process. Do not push to connect couplings.
The screwing of the threads should be done by hand without the use of the tools for the first part of the
connection.
Screw the connecting sleeve of the female until metal surface contact with the male coupling is complete.
Tighten the sleeve to the base of the male using the tightening torque spec. as indicated in the table below.
• To uncouple turn sleeve from contact position using a wrench, then unscrew making sure the couplings stay
aligned through the entire process.
WARNING!
PERFORMANCE
Description
Size
VEP17HD
VEP21HD
VEP30HD
Inch
1
3/4
1
1-1/2
1 1/2
2
Descrizione
Description
VEP17HD
VEP21HD
VEP30HD
Descrizione
Description
VEP17HD
VEP21HD
VEP30HD
ISO
Size
mm
-
Rated flow
l/min
100
189
288
GPM
26,50
50,09
76,32
Max. flow
suggested
l/min
GPM
200
53,00
378
100,17
750
198,75
Max.
dipressure
esercizio
Max.pressione
operating
Accoppiato
Maschio
Femmina
Coupled
Male
Female
MPa
psi
MPa
psi
MPa
psi
50
7250
50
7250
33
4785
47
6815
47
6815
30
4350
40
5800
40
5800
27
3915
Coppia
Tightening
di serraggio
torque
Nm
Nm
110-130
125-145
155-175
lbf ft
ft
81-96
92-107
114-129
Connect °
torque
Nm
lbf ft
5,6
4,13
8,2
6,04
26,0
19,16
Disconnect °
torque
Nm
lbf ft
3,6
2,65
5,8
4,27
12,5
9,21
Accoppiato
Coupled
MPa
psi
125
18125
120
17400
110
15950
Spillage *
ml
0,018
0,060
0,200
Pressione
di scoppio
Burst pressure
Maschio
Femmina
Male
Female
MPa
psi
MPa
psi
125
18125
100
14500
120
17400
80
11600
110
15950
80
11600
Max. residual
pressionepressure
residua
Max.
durante
accoppiamento
during
connection
Maschio
Femmina
Maschio
e
Male
Female
Male and
Fem. a to
scarico
Mas.
scarico
Femmina
Female
drain
Maleato
drain
Female
Mpa
psi
MPa
psi
MPa
psi
Mpa
MPa
MPa
25
3625
25
3625
15
2175
25
3625
25
3625
15
2175
25
3625
25
3625
5
725
Max.
Max.pressione
residual
residua durante
pressure
during
disaccoppiamento
disconnection
MPa
MPa
15
15
5
psi
2175
2175
725
• Tests:
The couplings coupled and the male uncoupled, have been tested at max. operating pressure for 1’000’000
impulses in according with ISO 7241-2.
The female uncoupled have been tested for 100’000 impulses.
42
SERIES: VEP-HD
PRESSURE DROP
43
SERIES: VEP-HD
OVERALL DIMENSIONS
1
1
1-1/4
1-1/4
1-1/2
E
F
G
M
N
P
Q
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
46
1,81
46
1,81
55
2,17
55
2,17
65
2,56
65
2,56
46
1,81
46
1,81
55
2,17
5
2,17
65
2,56
65
2,56
124
4,88
124
4,88
133,4
5,25
133,4
5,25
150
5,91
150
5,91
58,8
2,31
58,8
2,31
69,8
2,75
69,8
2,75
95
3,74
95
3,74
99,7
3,93
99,7
3,93
106,8
4,20
106,8
4,20
133,5
5,26
133,5
5,26
200,9
7,91
200,9
7,91
216,2
8,51
216,2
8,51
253,9
10,0
253,9
10,0
58,8
2,31
58,8
2,31
69,8
2,75
69,8
2,75
94,4
3,72
94,4
3,72
M50x3
M50x3
M58x3
M58x3
M80x4
M80x4
-
55
2,17
55
2,17
65
2,56
65
2,56
75
2,95
75
2,95
55
2,17
55
2,17
65
2,56
65
2,56
85
3,35
85
3,35
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
1,350
2,98
1,300
2,87
1,890
4,17
1,790
3,95
3,400
7,50
3,300
7,28
Female
D
Male
C
Maschio
VEP30HD
1-1/2 BSP
3/4
B
Unità
Unit
VEP17HD
3/4 BSP
VEP17HD
1 BSP
VEP21HD
1 BSP
VEP21HD
1-1/4 BSP
VEP30HD
1-1/4 BSP
A
Unità
Unit
Description
Descrizione
Femmina
Weight
Peso
1,330
2,93
1,280
2,82
2,120
4,67
2,020
4,45
4,460
9,83
4,360
9,61
1-1/4
1-1/4
1-1/2
G
M
N
P
Q
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
46
1,81
46
1,81
55
2,17
55
2,17
65
46
1,81
46
1,81
55
2,17
55
2,17
65
124
4,88
12
4,88
133,4
5,25
133,4
5,25
150
58,8
2,31
58,8
2,31
69,8
2,75
69,8
2,75
95
99,7
3,93
99,7
3,93
106,8
4,20
106,8
4,20
133,5
200,9
7,91
200,9
7,91
216,2
8,51
216,2
8,51
253,9
58,8
2,31
58,8
2,31
69,8
2,75
69,8
2,75
94,4
M50x3
M50x3
M58x3
M58x3
M80x4
55
2,17
55
2,17
65
2,56
65
2,56
75
55
2,17
55
2,17
65
2,56
65
2,56
85
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
1,350
2,98
1,300
2,87
1,890
4,17
1,790
3,95
3,400
1,330
2,93
1,280
2,82
2,120
4,67
2,020
4,45
4,460
Inch
mm
Inch
2,56
65
2,56
2,56
65
2,56
5,91
150
5,91
3,74
95
3,74
5,26
133,5
5,26
10,0
253,9
10,0
3,72
94,4
3,72
M80x4
-
2,95
75
2,95
3,35
85
3,35
lb
Kg
lb
7,50
3,300
7,28
9,83
4,360
9,61
Female
F
Femmina
1
E
Male
VEP21HD
1 NPT
VEP21HD
1-1/4 NPT
VEP30HD
1-1/4 NPT
VEP30HD
1-1/2 NPT
1
D
Maschio
3/4
C
Unit
VEP17HD
3/4 NPT
VEP17HD
1 NPT
B
Unit
A
Unità
Descrizione
Description
Unità
Weight
Peso
44
SERIES: VEP-HD
OVERALL DIMENSIONS
VEP21HD
1 SAE
VEP21HD
1-1/4 SAE
VEP30HD
1-1/4 SAE
VEP30HD
1-1/2 SAE
1-5/1612UN
1-5/1812UN
1-5/1812UN
1-7/812UN
F
G
M
N
P
Q
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
46
1,81
46
1,81
55
2,17
55
2,17
65
46
1,81
46
1,81
55
2,17
55
2,17
65
127
5,00
124
4,88
133,4
5,25
133,4
5,25
150
58,8
2,31
58,8
2,31
69,8
2,75
69,8
2,75
95
100,7
3,96
100,7
3,96
106,8
4,20
106,8
4,20
133,5
204,9
8,07
201,9
7,95
216,2
8,51
216,2
8,51
253,9
58,8
2,31
58,8
2,31
69,8
2,75
69,8
2,75
94,4
M50x3
M50x3
M58x3
M58x3
M80x4
55
2,17
55
2,17
65
2,56
65
2,56
75
55
2,17
55
2,17
65
2,56
65
2,56
85
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
1,350
2,98
1,290
2,84
1,890
4,17
1,780
3,92
3,400
1,330
2,93
1,270
2,80
2,120
4,67
2,010
4,43
4,460
Inch
mm
Inch
2,56
65
2,56
2,56
65
2,56
5,91
150
5,91
3,74
95
3,74
5,26
133,5
5,26
10,0
253,9
10,0
3,72
94,4
3,72
M80x4
-
2,95
75
2,95
3,35
85
3,35
lb
Kg
lb
7,50
3,280
7,23
9,83
4,335
9,56
Female
E
Male
D
Femmina
1-1/1612UN
1-5/1612UN
C
Maschio
VEP17HD
3/4 SAE
VEP17HD
1 SAE
B
Unità
Unit
A
Unità
Descrizione
Description
Unit
Weight
Peso
45
SERIES: A-HP
MAIN APPLICATIONS
“A-HP” is the flat face coupling
series designed for high pressure
hydraulic applications up to
720 bar / 10,440 psi.
The couplings are manufactured
with high resistance carbon steel.
The flat face design eliminates
leakage during connecting and
disconnecting. For safety, the
couplings are designed not to
interchange with lower pressure
couplings and the automatic safety
lock prevents accidental
disconnection. “ A-HP” series is
used in applications where high
operating pressure is necessary with
maximum safety features.
• Rescue equipment
• Hydraulic tools
• Hydraulic jacks
46
SERIES: A-HP
• Valve system: Flat face • Mechanical connection: Locking balls
• Threads available: NPT, BSP
• Threads on request: Male NPT
carbon steel
• Locking ball material: Hard steel 100 C6
• Seals: NBR (Nitrile)
• Seals on request: Others kinds
effect
Bodies black zinc plated
for identification
Automatic safety lock to
prevent accidental
disconnection
Modular structure
Flat face valves
Modular structure
Metal to metal sealing system
to avoid potential
damage of seal caused
by high operating pressure
extrusion
BENEFITS
• Internal design reduces pressure drop, increasing circuit efficiency.
• The automatic safety lock to prevent accidental disconnection, avoids to the operator to make two movements
saving time to connect. This benefit is very important mainly for the rescue equipment.
• The modular structure allows broad range of port configurations.
47
SERIES: A-HP
HOW TO USE
• To couple push the male half towards the female half or vice versa until the coupler sleeve clicks.
Upon connection the safety sleeve automatically rotates engaging the safety lock mechanism. In this safety lock
position the coupling can not be disconnected until the operator aligns the sleeve in the proper position (safety
locking ball aligned with groove in the coupler sleeve).
• To uncouple turn the external sleeve until the sleeve lock groove is aligned with the safety locking ball and pull
back the sleeve.
WARNING!
PERFORMANCE
Description
Size
A4HP
A5HP
A9HP
Inch
1/8
1/4
3/8
Descrizione
Description
A4HP
A5HP
A9HP
ISO
Size
mm
-
Rated flow
l/min
3
12
23
GPM
0,80
3,18
6,10
Max. flow
suggested
l/min
GPM
6
1,59
24
6,36
46
12,19
Max.
dipressure
esercizio
Max.pressione
operating
Accoppiato
Maschio
Femmina
Coupled
Male
Female
MPa
psi
MPa
psi
MPa
psi
72
10440
72
10440
72
10440
72
10440
72
10440
50
7250
72
10440
72
10440
42
6090
Connect force
N
95
125
205
lbf
21,38
28,13
46,13
Accoppiato
Coupled
MPa
psi
160
23200
200
29000
180
26100
Disconnect force
N
40
45
50
lbf
9,00
10,13
11,25
Pressione
di scoppio
Burst pressure
Maschio
Male
MPa
psi
160
23200
200
29000
200
29000
Spillage*
ml
0,040
0,020
0,020
Femmina
Female
MPa
psi
160
23200
150
21750
125
18125
• Tests:
A4HP has been tested for 10’000 impulses.
48
SERIES: A-HP
PRESSURE DROP
49
SERIES: A-HP
OVERALL DIMENSIONS
1/8
A5HP
3/8 NPT
A9HP
3/8 NPT
3/8
A9HP
1/2 NPT
1/2
1/4
3/8
G
H
I
J
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
17,0
0,67
22,0
0,87
24,0
0,94
27,0
1,06
27,0
1,06
17,0
0,67
22,0
0,87
24,0
0,94
30,0
1,18
30,0
1,18
36,2
1,43
47,9
1,89
54,9
2,16
60,0
2,36
62,5
2,46
22,0
0,87
29,0
1,14
29,0
1,14
34,0
1,34
34,0
1,34
44,0
1,73
58,0
2,28
60,0
2,36
64,6
2,54
69,6
2,74
72,3
2,85
94,9
3,74
103,9
4,09
108,8
4,28
116,3
4,58
18,5
0,73
23,8
0,94
26,0
1,02
29,0
1,14
29,0
1,14
21,8
0,86
29,0
1,14
29,0
1,14
32,0
1,26
32,0
1,26
12,0
0,47
16,5
0,65
16,5
0,65
19,5
0,77
19,5
0,77
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,041
0,09
0,090
0,20
0,107
0,24
0,153
0,34
0,144
0,32
Female
F
Femmina
E
Male
D
Unit
C
Maschio
A4HP
1/8 NPT
A5HP
1/4 NPT
B
Unità
A
Unit
Descrizione
Description
Unità
Weight
Peso
0,090
0,20
0,205
0,45
0,209
0,46
0,322
0,71
0,308
0,68
FEMALE BSPP THREAD (DIN 3852) (Not preferred for high pressure)
1/2
G
H
I
J
17,0
0,67
22,0
0,87
24,0
0,94
27,0
1,06
27,0
1,06
17,0
0,67
22,0
0,87
24,0
0,94
30,0
1,18
30,0
1,18
36,2
1,43
47,9
1,89
54,9
2,16
60,0
2,36
62,5
2,46
22,0
0,87
29,0
1,14
29,0
1,14
34,0
1,34
34,0
1,34
44,0
1,73
58,0
2,28
60,0
2,36
64,6
2,54
69,6
2,74
72,3
2,85
94,9
3,74
103,9
4,09
108,8
4,28
116,3
4,58
18,5
0,73
23,8
0,94
26,0
1,02
29,0
1,14
29,0
1,14
21,8
0,86
29,0
1,14
29,0
1,14
32,0
1,26
32,0
1,26
12,0
0,47
16,5
0,65
16,5
0,65
19,5
0,77
19,5
0,77
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,041
0,09
0,087
0,19
0,087
0,19
0,151
0,33
0,153
0,34
Female
A9HP
1/2 BSP
3/8
F
Femmina
3/8
E
Male
A5HP
3/8 BSP
A9HP
3/8 BSP
1/4
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
D
Maschio
1/8
C
Unit
A4HP
1/8 BSP
A5HP
1/4 BSP
B
Unità
A
Unit
Descrizione
Description
Unità
Weight
Peso
0,093
0,21
0,204
0,45
0,204
0,45
0,298
0,66
0,304
0,67
50
SERIES: FL
MAIN APPLICATIONS
The “FL” flat face coupling series is
the Stucchi solution for applications
in high corrosion environments
and/or for corrosive fluid transfer.
The “FL” couplings are
manufactured in stainless steel AISI
316, standard seals are
Viton / Flourocarbon with the
option of other seal
materials upon request for use with
various fluids and operating
temperatures. The features of flat
face couplings in stainless steel
to eliminate leakage during
connection-disconnection, reduce
contamination in the circuit, and
offer optimal resistance to corrosion
make “FL” series ideal for
applications such as: offshore,
marine, industrial equipment,
chemical, Pharmaceutical and
food processing.
• Offshore - Marine
• Chemical - Pharmaceutical
• Food Industry
51
SERIES: FL
HTMA (size 10)
• Connection system: Pushing to connect
• Disconnection system: Pushing back the sleeve of female • Connection with residual pressure: Not allowed
• Threads available: BSP, NPT
• Threads on request: SAE (J1926-1)
balls to reduce the
• Construction material: Stainless steel
AISI 316
• Springs: AISI 302
• Locking ball material: AISI 316
• Seals: Standard in VITON
• Seals on request: NBR (Nitrile),
EPDM, KALREZ or others
• Accessories on request: Caps in AISI 316
Flat face valves
extrusion at high flow rates
against extrusion
BENEFITS
• Optimal resistance to the corrosion for long life of couplings.
52
SERIES: FL
HOW TO USE
back the sleeve.
WARNING!
The plastic caps of “FIRG-A” series are suitable for “FL” couplings.
On request caps in stainless steel AISI 316.
PERFORMANCE
Description
Size
FL4
FL7
FL9
FL13
FL15
FL17
FL21
FL27
FL45
Inch
1/8
1/4
3/8
1/2
5/8
3/4
1
1-1/2
2
Descrizione
Description
FL4
FL7
FL9
FL13
FL15
FL17
FL21
FL27
FL45
ISO
Size
mm
6,3
10,0
12,5
16,0
19,0
25,0
-
Rated flow
l/min
3
12
23
45
74
100
189
288
379
GPM
0,80
3,18
6,10
11,93
19,61
26,50
50,09
76,32
100,44
Max. flow
suggested
l/min
GPM
6
1,59
24
6,36
46
12,19
90
23,85
148
39,22
200
53,00
378
100,17
750
198,75
1000
265,00
Max.
dipressure
esercizio
Max.pressione
operating
Accoppiato
Maschio
Femmina
Coupled
Male
Female
MPa
psi
MPa
psi
MPa
psi
35
5075
35
5075
33
4785
35
5075
35
5075
12
1740
35
5075
35
5075
15
2175
35
5075
35
5075
15
2175
35
5075
30
4350
12
1740
33
4785
28
4060
12
1740
28
4060
28
4060
12
1740
23
3335
23
3335
8
1160
15
2175
15
2175
7
1015
Connect force
N
140
160
160
200
200
200
280
580
490
Disconnect force
lbf
31,50
36,00
36,00
45,00
45,00
45,00
63,00
130,50
110,25
N
30
45
45
60
60
60
90
160
70
Accoppiato
Coupled
MPa
psi
140
20300
140
20300
140
20300
120
17400
120
17400
100
14500
90
13050
80
11600
60
8700
lbf
6,75
10,13
10,13
13,50
13,50
13,50
20,25
36,00
15,75
Spillage *
ml
0,005
0,006
0,012
0,020
0,026
0,032
0,035
0,050
0,100
Pressione
di scoppio
Burst pressure
Maschio
Femmina
Male
Female
MPa
psi
MPa
psi
140
20300
120
17400
120
17400
48
6960
120
17400
60
8700
110
15950
60
8700
100
14500
48
6960
80
11600
48
6960
80
11600
48
6960
70
10150
32
4640
60
8700
28
4060
- Standard seals VITON : from -15°C to +180°C ( from +5 °F to +356 °F).
- NBR (Nitrile) seals: from -20 °C to +100 °C ( from -4 °F to +212 °F).
- EPDM (Ethylene Propylene) seals: from -40 °C to +150 °C ( from -40 °F to +302 °F).
- KALREZ seals: from -25 °C to +300 °C ( from -13 °F to +572 °F).
The couplings with Kalrez seals for high temperature use, can be used at max. operating pressure
of 5 Mpa (725 psi).
• Tests:
- The couplings have been tested at max. operating pressure for 100.000 impulses in according with ISO 7241-2.
53
SERIES: FL
PRESSURE DROP
54
SERIES: FL
OVERALL DIMENSIONS
1/4
FL9
3/8 BSP
FL9
1/2 BSP
FL13
1/2 BSP
FL13
3/4 BSP
FL15
3/4 BSP
3/8
FL17
1 BSP
FL21
1-1/4 BSP
FL27
1-1/2 BSP
FL45
2 BSP
1
1/2
1/2
3/4
3/4
1-1/4
1-1/2
2
G
H
I
J
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
17
0,67
22
0,87
24
0,94
27
1,06
32
1,26
36
1,42
36
1,42
46
1,81
55
2,17
70
2,76
75
2,95
19
0,75
22
0,87
27
1,06
27
1,06
32
1,26
36
1,42
36
1,42
46
1,81
55
2,17
65
2,56
80
3,15
36,3
1,43
49,4
1,94
59,9
2,36
62,4
2,46
70,5
2,78
70,5
2,78
70,5
2,78
82,2
3,24
90
3,54
111
4,37
123,8
4,87
20
0,79
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
55
2,17
80
3,15
100
3,94
40
1,57
48,3
1,90
64,2
2,53
69,2
2,72
73,8
2,91
80,8
3,18
80,9
3,19
92,9
3,66
106,2
4,18
132,4
5,21
156,6
6,17
68,4
2,69
86,7
3,41
108,6
4,28
116,1
4,57
127
5,00
134
5,28
133,8
5,27
153,3
6,04
173
6,81
214,8
8,46
241,5
9,51
18,5
0,73
23,8
0,94
26
1,02
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
49,5
1,95
59,8
2,35
76
2,99
83,5
3,29
20,5
0,81
23,8
0,94
29
1,14
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
49,5
1,95
59,8
2,35
72
2,83
88,5
3,48
11,6
0,46
16,1
0,63
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
36
1,42
57
2,24
73
2,87
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,037
0,08
0,098
0,22
0,124
0,27
0,120
0,26
0,259
0,57
0,255
0,56
0,282
0,62
0,432
0,95
0,672
1,48
1,890
4,17
2,290
5,05
Female
F
Femmina
E
Male
D
Maschio
1/8
C
Unit
FL4
1/8 BSP
FL7
1/4 BSP
B
Unità
A
Unit
Descrizione
Description
Unità
Weight
Peso
0,074
0,16
0,142
0,31
0,245
0,54
0,242
0,53
0,378
0,83
0,375
0,83
0,492
1,08
0,795
1,75
1,226
2,70
2,908
6,41
5,230
11,53
55
SERIES: FL
OVERALL DIMENSIONS
FL9
3/8 NPT
FL9
1/2 NPT
FL13
1/2 NPT
FL13
3/4 NPT
FL15
3/4 NPT
3/8
FL17
1 NPT
FL21
1-1/4 NPT
FL27
1-1/2 NPT
FL45
2 NPT
1
1/4
1/2
1/2
3/4
3/4
1-1/4
1-1/2
2
G
H
I
J
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
17
0,67
22
0,87
24
0,94
27
1,06
32
1,26
36
1,42
36
1,42
46
1,81
55
2,17
70
2,76
75
2,95
19
0,75
22
0,87
27
1,06
27
1,06
32
1,26
36
1,42
36
1,42
46
1,81
55
2,17
65
2,56
80
3,15
36,3
1,43
47,9
1,89
59,9
2,36
62,4
2,46
68
2,68
70,5
2,78
70,5
2,78
82,2
3,24
90
3,54
111
4,37
123,8
4,87
20
0,79
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
55
2,17
80
3,15
100
3,94
40
1,57
48,3
1,90
64,2
2,53
69,2
2,72
73,8
2,91
80,8
3,18
80,9
3,19
92,9
3,66
106,2
4,18
132,4
5,21
156,6
6,17
68,4
2,69
85,2
3,35
108,6
4,28
116,1
4,57
124,5
4,90
134
5,28
133,8
5,27
153,3
6,04
173
6,81
214,8
8,46
241,5
9,51
18,5
0,73
23,8
0,94
26
1,02
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
49,5
1,95
59,8
2,35
76
2,99
83,5
3,29
20,5
0,81
23,8
0,94
29
1,14
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
49,5
1,95
59,8
2,35
72
2,83
88,5
3,48
11,6
0,46
16,1
0,63
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
36
1,42
57
2,24
73
2,87
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,040
0,09
0,094
0,21
0,137
0,30
0,135
0,30
0,259
0,57
0,266
0,59
0,280
0,62
0,432
0,95
0,672
1,48
1,896
4,18
2,290
5,05
Female
F
Femmina
E
Male
D
Maschio
1/8
C
Unit
FL4
1/8 NPT
FL7
1/4 NPT
B
Unità
A
Unit
Descrizione
Description
Unità
Weight
Peso
0,075
0,17
0,143
0,32
0,245
0,54
0,242
0,53
0,378
0,83
0,416
0,92
0,495
1,09
0,810
1,79
1,226
2,70
2,908
6,41
5,230
11,53
56
SERIES: FIRG-Q
MAIN APPLICATIONS
The “FIRG-Q” flat-face couplings
series is the solution for mildly corrosive
environments and/or for relatively
corrosive fluid transfer (ex.: sweet water,
water and glycol etc).
Products are manufactured in
carbon steel and treated with
special nitriding and oxidation treatment.
The internal valve material is
stainless steel AISI303 and can be
supplied with a variety of seals for fluid
compatibility and operating
temperature requirements.
The flat face design
eliminates leakage during
connection-disconnection and
reduces contamination in the circuit.
The combined features of the flat face
design with greater resistance to
corrosion makes “FIRG-Q”
series ideal for several applications,
mainly in the industrial field.
• Cooling systems
• Steel industry
57
SERIES: FIRG-Q
HTMA (size 10)
• Threads available: BSP, NPT
• Threads on request: SAE (J1926-1)
to reduce the
balls to reduce the
Flat face valves
against extrusion
carbon steel with special treatment
Internal valves in AISI 303
• Spring: AISI 302
• Locking Ball material: AISI 420
• Seals: NBR (Nitrile), VITON, EPDM
and KALREZ
• Seals on request: HNBR or others
extrusion at high flow rates.
Version with KALREZ seals
has a metal to metal
sealing system.
BENEFITS
• Superior corrosion resistance compared to zinc plating in specific corrosive environments.
58
SERIES: FIRG-Q
HOW TO USE
back the sleeve.
WARNING!
The plastic caps for “FIRG-A” series are suitable with “FIRG-Q” couplings.
PERFORMANCE
Description
Size
FIRG14Q
FIRG38Q-12Q
FIRG12A-34Q
FIRG34BQ
FIRG100Q
FIRG114Q
FIRG112Q
FIRG200Q
Inch
1/4
3/8
1/2
5/8
3/4
1
1-1/2
2
ISO
Size
mm
6,3
10,0
12,5
16,0
19,0
25,0
-
Rated flow
l/min
12
23
45
74
100
189
288
379
GPM
3,18
6,10
11,93
19,61
26,50
50,09
76,32
100,44
Max. flow
suggested
l/min
GPM
24
6,36
46
12,19
90
23,85
148
39,22
200
53,00
378
100,17
750
198,75
1000
265,00
(Data valid for couplings with NBR, VITON, EPDM seals)
Descrizione
Max.
dipressure
esercizio
Description
Max.pressione
operating
Accoppiato
Maschio
Femmina
Coupled
Male
Female
MPa
psi
MPa
psi
MPa
psi
FIRG14Q
30
4350
30
4350
12
1740
FIRG38Q-12Q
30
4350
30
4350
15
2175
FIRG12A-34Q
25
3625
25
3625
12
1740
FIRG34BQ
25
3625
25
3625
12
1740
FIRG100Q
25
3625
25
3625
10
1450
FIRG114Q
25
3625
25
3625
10
1450
FIRG112Q
20
2900
20
2900
8
1160
FIRG200Q
20
2900
20
2900
8
1160
Connect force
N
130
160
240
190
220
310
400
370
Disconnect force
lbf
29,25
36,00
54,00
42,75
49,50
69,75
90,00
83,25
N
45
35
65
60
70
100
100
70
lbf
10,13
7,88
14,63
13,50
15,75
22,50
22,50
15,75
Spillage*
ml
0,006
0,012
0,020
0,026
0,032
0,035
0,050
0,100
Accoppiato
Coupled
MPa
psi
120
17400
120
17400
100
14500
100
14500
100
14500
100
14500
60
8700
60
8700
Pressione
di scoppio
Burst pressure
Maschio
Femmina
Male
Female
MPa
psi
MPa
psi
120
17400
48
6960
120
17400
60
8700
100
14500
48
6960
100
14500
48
6960
90
13050
40
5800
90
13050
40
5800
60
8700
32
4640
60
8700
32
4640
Accoppiato
Coupled
MPa
psi
120
17400
120
17400
100
14500
100
14500
100
14500
100
14500
40
5800
40
5800
Pressione
di scoppio
Burst pressure
Maschio
Femmina
Male
Female
MPa
psi
MPa
psi
120
17400
40
5800
120
17400
48
6960
100
14500
48
6960
100
14500
40
5800
90
13050
60
8700
90
13050
60
8700
40
5800
32
4640
40
5800
32
4640
(Data valid for couplings with KALREZ seals for high temperature)
Descrizione
Description
FIRG14QK
FIRG38-12QK
FIRG12A-34QK
FIRG34BQK
FIRG100QK
FIRG114QK
FIRG112QK
FIRG200QK
Max.
dipressure
esercizio
Max.pressione
operating
Accoppiato
Maschio
Femmina
Coupled
Male
Female
MPa
psi
MPa
psi
MPa
psi
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
5
725
- NBR (Nitrile) selas: from -20 °C to +100 °C ( from -4 °F to +212 °F).
- VITON seals: from -15°C to +180°C ( from +5 °F to +356 °F).
- EPDM (Ethylene Propylene) seals: from -40°C to +150°C ( from -40 °F to +302 °F).
- KALREZ seals: from -25°C to +300°C ( from -13 °F to +572 °F).
• Tests:
59
SERIES: FIRG-Q
PRESSURE DROP
60
SERIES: FIRG-Q
OVERALL DIMENSIONS
3/8
1/2
1/2
3/4
3/4
1
1-1/4
1-1/2
2
G
H
I
J
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
22
0,87
24
0,94
27
1,06
32
1,26
36
1,42
36
1,42
45
1,77
55
2,17
70
2,76
75
2,95
22
0,87
27
1,06
27
1,06
32
1,26
36
1,42
36
1,42
45
1,77
55
2,17
65
2,56
80
3,15
47,9
1,89
60
2,36
62,5
2,46
68
2,68
70,5
2,78
70,5
2,78
82,3
3,24
89,8
3,54
111
4,37
123,8
4,87
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
55
2,17
80
3,15
100
3,94
48,1
1,89
64,2
2,53
69,2
2,72
73,8
2,91
80,8
3,18
78,5
3,09
93,2
3,67
106
4,17
132,4
5,21
156,6
6,17
85,2
3,35
108,7
4,28
116,2
4,57
124,5
4,90
134
5,28
131,4
5,17
153,5
6,04
172,8
6,80
214,8
8,46
241,5
9,51
23,8
0,94
26
1,02
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
47,8
1,88
59,8
2,35
76
2,99
83,5
3,29
24
0,94
29
1,14
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
47,8
1,88
59,8
2,35
72
2,83
88,5
3,48
16,1
0,63
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
36
1,42
57
2,24
73
2,87
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,086
0,19
0,122
0,27
0,120
0,26
0,230
0,51
0,230
0,51
0,268
0,59
0,395
0,87
0,643
1,42
1,862
4,10
2,259
4,98
Female
F
Femmina
E
Male
D
Maschio
1/4
C
Unità
FIRG14Q
BSP
FIRG38Q
BSP
FIRG12Q
BSP
FIRG12AQ
BSP
FIRG34Q
BSP
FIRG34BQ
BSP
FIRG100Q
BSP
FIRG114Q
BSP
FIRG112Q
BSP
FIRG200Q
BSP
B
Unit
A
Unit
Descrizione
Description
Unità
Peso
Weight
0,140
0,31
0,233
0,51
0,230
0,51
0,370
0,82
0,370
0,82
0,471
1,04
0,765
1,69
1,200
2,65
2,823
6,22
5,100
11,24
61
SERIES: FIRG-Q
OVERALL DIMENSIONS
3/8
1/2
1/2
3/4
3/4
1
1-1/4
1-1/2
2
G
H
I
J
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
22
0,87
24
0,94
27
1,06
32
1,26
36
1,42
36
1,42
45
1,77
55
2,17
70
2,76
75
2,95
22
0,87
27
1,06
27
1,06
32
1,26
36
1,42
36
1,42
45
1,77
55
2,17
65
2,56
80
3,15
47,9
1,89
60
2,36
62,5
2,46
68
2,68
70,5
2,78
70,5
2,78
82,3
3,24
89,8
3,54
111
4,37
123,8
4,87
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
48
1,89
55
2,17
80
3,15
100
3,94
48,1
1,89
64,2
2,53
69,2
2,72
73,8
2,91
80,8
3,18
78,5
3,09
93,2
3,67
106
4,17
132,4
5,21
156,6
6,17
85,2
3,35
108,7
4,28
116,2
4,57
124,5
4,90
134
5,28
131,4
5,17
153,5
6,04
172,8
6,80
214,8
8,46
241,5
9,51
23,8
0,94
26
1,02
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
47,8
1,88
59,8
2,35
76
2,99
83,5
3,29
24
0,94
29
1,14
29
1,14
33,8
1,33
38,5
1,52
38,5
1,52
47,8
1,88
59,8
2,35
72
2,83
88,5
3,48
16,1
0,63
19,7
0,78
19,7
0,78
24,5
0,96
24,5
0,96
27
1,06
30
1,18
36
1,42
57
2,24
73
2,87
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,085
0,19
0,120
0,26
0,130
0,29
0,239
0,53
0,227
0,50
0,268
0,59
0,406
0,90
0,645
1,42
1,865
4,11
2,259
4,98
Female
F
Femmina
E
Male
D
Maschio
1/4
C
Unità
FIRG14Q
NPT
FIRG38Q
NPT
FIRG12Q
NPT
FIRG12AQ
NPT
FIRG34Q
NPT
FIRG34BQ
NPT
FIRG100Q
NPT
FIRG114Q
NPT
FIRG112Q
NPT
FIRG200Q
NPT
B
Unit
A
Unit
Descrizione
Description
Unità
Weight
Peso
0,135
0,30
0,240
0,53
0,236
0,52
0,384
0,85
0,430
0,95
0,473
1,04
0,765
1,69
1,240
2,73
2,820
6,22
5,100
11,24
62
ACCESSORIES
PROTECTION CAPS FOR FIRG - A, VP-P, VEP-P AND VEP-HD SERIES
Protective caps are always recommended to protect the couplings from damage, dirt inclusion, and will increase
the product life. This is particularly important in mobile applications where exposure to weather and aggregate
materials are common.
The protection caps for FIRG-A series are available in three kind of materials:
- PVC (from FIRG14-A7 to FIRG114-A21)
- Aluminum (from A25 to FIRG200)
- Nylon (from FIRG38-A9 to FIRG100-A17)
The protection caps for VP-P, VEP-P and VEP-HD series are manufactured in anodizing aluminum.
63
ACCESSORIES
OVERALL DIMENSIONS PROTECTION CAPS FOR FIRG-A SERIES
P-7B
D-7
P-9D
D-9S
P-9D
D-9L
P-13D
D-13S
P-13F
D-13L
P-15F
D-15F
P-17G
D-17G
P-21H
D-21H
Coupling
F-FIRG14
F-A7
M-FIRG14
M-A7
F-FIRG38
F-A9 3/8
M-FIRG38
M-A9 3/8
Innesto
F-FIRG12
F-A9 1/2
M-FIRG12
M-A9 1/2
F-FIRG12A
F-A13 1/2
M-FIRG12A
M-A13 1/2
F-FIRG34
F-A13 3/4
M-FIRG34
M-A13 3/4
F-FIRG34B
F-A15
M-FIRG34B
M-A15
F-FIRG100
F-A17
M-FIRG100
M-A17
F-FIRG114
F-A21
M-FIRG114
M-A21
Unità
Unit
Description
Descrizione
Unità
Unit
PVC CAPS
- Available in following colors: Red, yellow, blue, black and green.
- Temperature range: from -20 °C to +100 °C ( from -4 °F to +212 °F).
Peso
Weight
A
A
B
B
C
C
D
D
E
E
FF
G
G
H
H
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
32
1,26
36
1,42
36
1,42
42
1,65
42
1,65
46
1,81
52
2,05
38
1,50
43
1,69
43
1,69
46
1,81
46
1,81
50
1,97
62
2,44
239
9,41
247
9,72
247
9,72
256
10,08
259
10,20
265
10,43
318
12,52
20
0,79
25
0,98
25
0,98
25
0,98
30
1,18
30
1,18
35
1,38
28
1,10
32
1,26
32
1,26
38
1,50
38
1,50
42
1,65
-
23
0,91
28
1,10
28
1,10
31,5
1,24
31,5
1,24
28
1,10
-
230
9,06
233
9,17
235
9,25
248
9,76
248
9,76
256
10,08
-
20
0,79
20
0,79
25
0,98
25
0,98
30
1,18
30
1,18
-
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,017
0,04
0,010
0,02
0,022
0,05
0,015
0,03
0,022
0,05
0,015
0,03
0,032
0,07
0,020
0,04
0,032
0,07
0,020
0,04
0,038
0,08
0,036
0,08
0,058
0,13
mm
Inch
-
-
-
-
48
1,89
35
1,38
310
12,20
35
1,38
Kg
lb
0,063
0,14
mm
Inch
mm
Inch
60
2,36
-
68
2,68
-
335
13,19
-
45
1,77
-
55
2,17
38,5
1,52
324
12,76
45
1,77
Kg
lb
Kg
lb
0,080
0,18
0,079
0,17
64
ACCESSORIES
Coupling
Innesto
-
F-A25
-
M-A25
-
F-FIRG112
F-A30
M-FIRG112
M-A30
-
F-FIRG200
-
M-FIRG200
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
A
B
C
D
E
F
80
3,15
95
3,74
115
4,53
-
41
1,61
50
1,97
50
1,97
-
370
14,57
380
14,96
435
17,13
-
51
2,01
58,5
2,30
75
2,95
-
60
2,36
70
2,76
85
3,35
A
B
C
D
E
F
G
G
H
46
1,81
50
1,97
62
2,44
360
14,17
368
14,49
420
16,54
51
2,01
58,5
2,30
75
2,95
H
Unità
Unit
Description
Descrizione
Unità
Unit
ALUMINUM CAPS
- Available in following colors: White and red.
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Peso
Weight
0,220
0,49
0,180
0,40
0,355
0,78
0,205
0,45
0,470
1,04
0,305
0,67
65
ACCESSORIES
-
Coupling
Innesto
F-FIRG38-12
F-A9
F-FIRG12A-34
F-A13
F-FIRG34B
F-A15
F-FIRG34A-100
F-A17
mm
Inch
mm
Inch
mm
Inch
mm
Inch
A
A
B
B
C
C
D
D
E
E
31,5
1,24
31,5
1,24
31,5
1,24
31,5
1,24
38
1,50
46
1,81
50
1,97
56
2,20
18
0,71
18
0,71
18
0,71
18
0,71
52
2,05
60
2,36
64
2,52
70
2,76
4
0,16
4
0,16
4
0,16
4
0,16
Unità
Unit
Description
Descrizione
Unità
Unit
NYLON FLIP CAPS
- Available in following colors: Red, yellow, blue, black and green.
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Peso
Weight
0,018
0,04
0,023
0,05
0,025
0,05
0,025
0,06
66
ACCESSORIES
OVERALL DIMENSIONS PROTECTION CAPS FOR VP-P SERIES
Descrizione
Coupling
Innesto
-
F-VP7
-
M-VP7
-
F-VP9P
-
M-VP9P
-
F-VP13P
-
M-VP13P
-
F-VP15P
-
M-VP15P
-
F-VP17P
-
M-VP17P
-
F-VP21P
-
M-VP21P
-
F-VP30P
-
M-VP30P
Unit
Unità
Description
Unit
Unità
ALUMINUM CAPS
Peso
Weight
A
A
B
B
C
C
D
D
E
E
FF
G
G
H
H
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
28,8
1,13
32,8
1,29
41,8
1,65
44,8
1,76
51,8
2,04
61,8
2,43
78,8
3,10
34
1,34
37
1,46
43
1,69
43
1,69
48
1,89
51
2,01
65
2,56
150
5,91
170
6,69
210
8,27
210
8,27
240
9,45
270
10,63
340
13,39
24
0,94
24
0,94
33
1,30
36
1,42
41
1,61
51
2,01
57
2,24
28,8
1,13
32,8
1,29
40,8
1,61
43,8
1,72
50,7
2,00
61,2
2,41
-
25
0,98
25
0,98
32
1,26
32
1,26
32
1,26
34
1,34
-
150
5,91
170
6,69
210
8,27
210
8,27
240
9,45
270
10,63
-
24
0,94
24
0,94
33
1,30
36
1,42
41
1,61
51
2,01
-
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,025
0,06
0,020
0,04
0,035
0,08
0,025
0,06
0,065
0,14
0,045
0,10
0,060
0,13
0,055
0,12
0,090
0,20
0,075
0,17
0,115
0,25
0,130
0,29
0,210
0,46
mm
Inch
-
-
-
-
79,3
3,12
42
1,65
340
13,39
57
2,24
Kg
lb
0,215
0,47
67
ACCESSORIES
OVERALL DIMENSIONS PROTECTION CAPS FOR VEP-P AND VEP-HD SERIES
Coupling
Descrizione
Innesto
-
F-VEP7
-
M-VEP7
-
F-VEP9P
-
M-VEP9P
-
F-VEP13P
-
M-VEP13P
-
F-VEP15P
-
M-VEP15P
-
F-VEP17P
F-VEP17HD
-
-
M-VEP17P
M-VEP17HD
F-VEP21P
F-VEP21HD
M-VEP21P
M-VEP21HD
F-VEP30P
F-VEP30HD
M-VEP30P
M-VEP30HD
F-VEP45
-
M-VEP45
-
Unit
Unità
Description
Unit
Unità
ALUMINUM CAPS
Weight
Peso
A
A
B
B
C
C
D
D
E
E
FF
G
G
H
H
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
mm
Inch
34,8
1,37
37,8
1,49
45,8
1,80
49,8
1,96
54,8
2,16
64,5
2,54
89,8
3,54
35,4
1,39
36,6
1,44
40
1,57
43,6
1,72
49,3
1,94
53,4
2,10
62,6
2,46
150
5,91
170
6,69
210
8,27
210
8,27
240
9,45
270
10,63
340
13,39
24
0,94
24
0,94
33
1,30
36
1,42
41
1,61
51
2,01
57
2,24
34,8
1,37
37,8
1,49
45,8
1,80
49,8
1,96
54,8
2,16
64,5
2,54
-
45
1,77
51,5
2,03
56,5
2,22
60
2,36
70
2,76
75
2,95
-
150
5,91
170
6,69
210
8,27
210
8,27
240
9,45
270
10,63
-
24
0,94
24
0,94
33
1,30
36
1,42
41
1,61
51
2,01
-
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
Kg
lb
0,045
0,10
0,050
0,11
0,055
0,12
0,065
0,14
0,075
0,17
0,100
0,22
0,110
0,24
0,110
0,24
0,150
0,33
0,155
0,34
0,230
0,51
0,240
0,53
0,415
0,91
mm
Inch
-
-
-
-
89,8
3,54
88
3,46
340
13,39
57
2,24
Kg
lb
0,530
1,17
mm
Inch
mm
Inch
145
5,71
-
88
3,46
-
-
-
145
5,71
140
5,51
-
-
Kg
lb
Kg
lb
1,585
3,49
1,715
3,78
68
TECHNICAL FEATURES AND TERMS GLOSSARY
Interchangeability
Possibility of male coupling half or female coupling half to connect with the other brands of couplings.
Valve system
Type of valve used to shut-off medium flow from the male and female coupling half when disconnected.
Mechanical connection
Method or type of connection that creates retention between the male coupling half with female coupling half.
Size
Nominal size of coupling body.
ISO Size
Size indicated by ISO standard (the International Organization for Standardization) related to interchangeability of
the couplings.
Rated flow
Typical rated flow relative to the size, in according with ISO 7241-2 standard.
Max. flow suggested
Max. flow suggested by Stucchi S.p.A.
Connect force
Value of force required to connect the couplings without residual pressure in the system.
Disconnect force
Value of force required to disconnect the couplings without residual pressure in the system.
Connect torque
Value of torque required to connect the couplings without residual pressure in the system.
Disconnect torque
Value of torque required to disconnect the couplings without residual pressure in the system.
Spillage
Indicative value of the fluid loss per couple - uncouple cycle without residual pressure. Checked on sample
in according with ISO 7241-2 test method.
Max. operating pressure
The maximum peak of pressure which can be used the product.
Burst pressure
Value of pressure at which a coupling looses its ability to retain pressure.
Max. residual pressure during connection
Max. residual pressure trapped in the circuit where the coupler is allowed to connect.
Max. residual pressure during disconnection
Max. residual pressure trapped in the circuit where the coupler is allowed to disconnect.
Tightening torque
For screw couplings it is the torque value to which the male coupling half is to be connected with the female
coupling half.
Coupled
Male coupling half connected with the female coupling half.
Male
Male coupling half uncoupled.
Female
Female coupling half uncoupled.
Temperature range
Temperature range which can be used the product.
Pressure drop
Pressure lost between the inlet and outlet of the coupling.
Brinelling
Markings of the locking balls on the metallic parts where they are in contact.
69
SEALS AND RELATIVE TEMPERATURE RANGE
Seal compound
Temperature range
Celsius degrees °C
NBR (Nitrile)
VITON
EPDM (Ethylene Propylene)
KALREZ
HNBR
FLUOROSILICONE
SILICONE
NEOPRENE
PTFE (Teflon)
-20
-15
-40
-25
-30
-50
-50
-40
-50
Temperature range
Fahrenheit degrees °F
+100
+180
+150
+300
+130
+150
+150
+100
+180
-4 +212
+5 +356
-40 +302
-13 +572
-22 +266
-58 +302
-58 +302
-40 +212
-58 +356
The above temperatures are indicative and can change due to the fluid used.
For the correct choice of the seal, we suggest you to consult the Stucchi customer service.
CONVERSION FACTORS FROM INTERNATIONAL SYSTEM (SI) TO ANGLO SAXON
SYSTEM (USA)
International
system
SI
Anglo Saxon
system
USA
Trasformation
from SI to USA
Trasformation
from USA to SI
PRESSURE
Mega Pascal (MPa)
1 MPa = 10 bar
Pound/Square Inch
(psi)
1 Mpa = 145psi
1 psi = 0,0069 Mpa
FLOW IN
HYDRAULIC
Liter per minute
(l/min)
Gallon per minute
(GPM)
1 l/min = 0,265 GPM
1 GPM = 3,78 l/min
FORCE
Newton (N)
Pound force (lbf)
1 N = 0,225 lbf
1 lbf = 4,444 N
TORQUE
Newton meter (Nm)
Pound force x Foot
(lbf ft)
1 Nm = 0,737 lbf ft
1 lbf ft = 1,357 Nm
TEMPERATURE
Celsius degree
(°C)
Fahrenheit degree
(°F)
°C = (°F-32)/1,8
°F = (°Cx1,8)+32
LENGTH
Millimeter (mm)
Meter (m)
Inch (Inch)
Foot (ft)
1mm = 0,03937 Inch
1 m = 3,28084 ft
1 Inch = 25,4 mm
1 ft = 0,3048 m
WEIGHT
Kilogram (kg)
Pound (lb)
1 Kg = 2,2046 lb
1 lb = 0,4536 Kg
Characteristics
70
NOTES
71
NOTES
72
Stucchi S.p.A.
Via delle Arti e dei Mestieri, snc 24040 Pagazzano (BG) - Italy
Tel. +39 0363 380106 - Fax +39 0363 380171 - www.stucchi.it
Stucchi USA inc.
1107 Windham Parkway, Romeoville, IL 60446 - USA
Phone +1/847 9569720 - Fax +1/847 9569723
CAT. FLAT FACE - March 2008

FLAT FACE QUICK COUPLINGS

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