2 - Flow Safe, Inc.

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2 - Flow Safe, Inc.
“THE NEXT GENERATION”
, INC
High Performance
BULLETIN: F78K1105
“EXPERTS IN SOFT-SEATED VA LVE TECHNOLOGY ”
TABLE OF CONTENTS
SECTION
INTRODUCTION AND FEATURES
PAGES
OVERVIEW
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Dimensions and Weights . . . . . . . . . . . . . . . . . . . . 4
Introduction
Today’s industrial needs are being driven by requirements for
high capacity, leak-tight safety relief valves to reduce fugitive
emissions and to save customer product. The FLOW SAFE
F7000/8000 Series Pilot Operated Safety Relief Valves, with
accurate operational characteristics, are engineered to provide
superior performance for today’s industries.
Inlet/Outlet Flange Ratings . . . . . . . . . . . . . . . . . . 5
Seat and Seal Data . . . . . . . . . . . . . . . . . . . . . . . . . 5
CONSTRUCTION
Main Valve Assembly and Construction. . . . . . 6-7
F200 Snap Acting Pilot Valve Operation . . . . . . . 8
F200 Snap Acting Pilot Valve Construction . . . . . 9
F300 Modulating Pilot Valve Operation . . . . . . . 10
F300 Modulating Pilot Valve Construction. . . . . 11
F500 Modulating Pilot Valve Operation . . . . . . . 12
F500 Modulating Pilot Valve Construction. . . . . 13
Accessories and Options . . . . . . . . . . . . . . . . 14-15
Direct-mount pilot valves, minimizing
potential leak paths.
Modulating or snap-acting, with interchangeable
pilot valves.
Integral Module (IM) design available,
completely eliminating pilot tubing.
Superior main valve seating force, proportional
to nameplate set pressure.
Repeatable, leak-tight seating and re-seating,
due to soft seat design.
Compact profiles,for easier handling, installation
and maintenance.
Adjustable blowdown capability
.
ENGINEERING DATA
2
Sizing: Gases and Liquids . . . . . . . . . . . . . . . . . . 16
Large capacities through the full-bore nozzle (F7000)
and a variety of reduced API orifice selections (F8000).
Viscosity Correction Factors . . . . . . . . . . . . . . . 17
Superior flow capacities, independently (NB) verified.
Sizing and Set Pressure Considerations
for Backpressure . . . . . . . . . . . . . . . . . . . . . . . . . 18
Full lift at set pressure upon demand.
Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . 19
Easy convertability of orifice sizes, field adjustable.
Molecular Weights and C Factors . . . . . . . . . . . 20
Integral exhaust with F300 and F500 pilot valve.
Air/Natural Gas Capacities . . . . . . . . . . . . . . 21-24
Set pressures from 15 to 6000 psig.
Water Capacities . . . . . . . . . . . . . . . . . . . . . . . . . 25
-423F to +525F temperatur e range.
Part Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Specification Sheet and Order Form . . . . . . . . . 27
A variety of materials and end connections, 316SS
trim standard on carbon steel main valves.
No metal-to-metal contact of piston to liner assembly.
Top entry main valve for easy maintenance/inspection.
The policy of FLOW SAFE and its authorized
assemblers is a commitment to value through:
Environmentally Compatible Products
Cost Efficient Design, with Minimal Parts
Quality Products, Readily Available
Flexibility to meet Unique Customer Needs
“No Hassle” Service
.
Lifting lugs standard on sizes 2x3 and larger
One-piece main valve casting with integral flanges.
Backflow preventer and field test connection standard features.
Adjustments are heavy duty stainless steel
safety-wired and sealed.
All valves bear ASME “UV” stamp, at 15 psig
and above.
Compliance with industry standards,
including ASME, NACE, ANSI, and DOT.
F7000/8000 SERIES
OPERATION
System pressure is routed from below the valve through
the pilot valve to the dome cavity of the main valve. This
pressure, acting on a piston (dome) area Ad larger than
the seat area (As), creates an effective downward force
( F=Px( A d -A s )) holding the main valve piston down in
the closed position.
At the designated set pressure, the pilot valve
reduces the dome pressure, proportional to demand
if modulating (F300 or F500), or fully if snap-acting (F200),
and allows the piston to go into lift. Once the system
pressure is relieved, the pilot valve closes at the preset
blowdown, allowing the dome to repressurize and the
main valve piston to close. When closed, dome pressure
acting on a differential area between the top and bottom
of the piston assembly, creates a downward force on
the seat providing leak-tight shutoff.
The F7000/8000 utilizes an elastomeric or plastic seat
on the piston to achieve leak-tight seating. A dynamic
piston seal prevents any leakage from the dome to the
discharge. Wear rings on the piston eliminate metal-tometal contact with the liner and help to provide smooth
and consistent operation. Elastomeric/plastic seals seal
the main valve and pilot valves.
The orifice size may be easily selected by choosing
a full-bore fixed inlet nozzle on the F7000, or by
converting to a reduced size orifice (F8000) by
attaching FLOW SAFE’s unique annular-flow plug
to the bottom of the piston assembly. This plug reduces
the ef fective flow area of the valve by directing the
fluid between the plug O.D. and the nozzle I.D. This
feature in orifice selection allows the valve owner
greater versatility in valve standardization, utilization,
and minimized inventor y.
The F7000/8000 Series is particularly advantageous
and cost-effective in installations where:
There may be size and weight limitations
for the valve.
A high cycling rate exists.
A long service life is required.
Minimal product loss is important.
Reduced maintenance and installation
time is desirable.
3
The F200 Snap-Acting pilot valve blowdown is set at
5-7% of the set pressure and can be adjusted from 3%
to 20% if so specified. The F300 and F500 modulating pilot
valves provide zero blowdown, i.e. the main valve opens in
proportion to demand and closes at the set pressure.
CLOSED
OPEN
OUTLET
INLET
F7000/8000 SERIES
DIMENSIONS AND WEIGHTS
Available
Full Bore
Orifice
(F7000)
F7000/8000 Series
Flanged
* With F300 Pilot Valve.,
Deduct 2" (50 mm) for F200 Pilot Valve.
.957"
(0.719 in2 )
(4.64 cm2 )
.815"
Add 1/2" (13 mm) for F500 Pilot Valve
thru Class 600 inlet.
(0.521 in2) (3.36 cm2)
Add 4" (100 mm) for F500 Pilot Valve
over Class 600 inlet.
** See Page 5 for reduced
orifice flow areas.
4
B
B
F7000/8000 Series
Threaded
1.500"
(1.767 in2) (11.40 cm2)
1.337"
(1.40 in2) (9.06 cm2)
1.100"
(0.950 in2) (6.13 cm2)
1.939"
(2.953 in2)
(19.05 cm2)
1.689"
(2.240 in2) (14.45 cm2)
1.503"
(1.774 in2) (11.44 cm2)
2.900"
(6.605 in2)
(42.61 cm2)
2.624"
(5.408 in2) (34.89 cm2 )
3.816"
(11.437 in2)
(73.79 cm2)
3.624"
(10.315 in2)
(66.55 cm2)
Available
Reduced
Orifice
(F8000)**
Inlet
Flange
Outlet
Flange
D, E, F
1" - 150#
D, E, F
1" - 300#
D, E, F
1" - 600#
D, E, F
1" - 900#
D, E, F
1" - 1500#
D, E
1" - 2500#
F, G, H 1-1/2" - 150#
F, G, H 1-1/2" - 300#
F, G, H 1-1/2" - 600#
F, G, H 1-1/2" - 900#
F, G, H 1-1/2" - 1500#
F, G, H 1-1/2" - 2500#
2" - 150#
2" - 150#
2" - 150#
2" - 300#
2" - 300#
2" - 300#
3" - 150#
3" - 150#
3" - 150#
3" - 300#
3" - 300#
3" - 300#
G, H, J
G, H, J
G, H, J
G, H, J
G, H, J
G, H, J
2" - 150#
2" - 300#
2" - 600#
2" - 900#
2" - 1500#
2" - 2500#
3" - 150#
3" - 150#
3" - 150#
3" - 300#
3" - 300#
3" - 300#
J, K, L
J, K, L
J, K, L
J, K, L
J, K, L
L, M, N, P
L, M, N, P
L, M, N, P
L, M, N, P
L, M, N, P
3" - 150#
3" - 300#
3" - 600#
3" - 900#
3" - 1500#
4" - 150#
4" - 300#
4" - 600#
4" - 900#
4" - 1500#
5.760"
Q, R
(26.06 in2)
Q, R
2
(168.1 cm )
Q, R
7.625"
T
2
(45.66 in )
T
(294.6 cm2)
T
11.935"
W
(111.87 in2) (721.7 cm2)
.957"
D, E, F
2
2
(0.719 in ) (4.64 cm )
F, G, H
1.500"
2
2
(1.767 in ) (11.40 cm )
Dimensions, in (mm)
A
B
4.38 (111)
C
approx.*
Approx.
weight,
lb (kg)
4.50 (114) 13.3 (338)
38 (17)
4.38 (111) 4.50 (114) 13.3 (338)
40 (18)
4.38 (111) 4.50 (114) 13.3 (338)
40 (18)
4.94 (126)
4.75 (121) 13.8 (351)
50 (23)
4.94 (126)
4.75 (121) 13.8 (351)
50 (23)
4.94 (126)
4.75 (121) 13.8 (351)
50 (23)
5.13 (130)
4.88 (124) 14.6 (371)
50 (23)
5.13 (130)
4.88 (124) 14.6 (371)
55 (25)
5.13 (130)
4.88 (124) 14.6 (371)
55 (25)
6.38 (162) 6.75 (171) 15.1 (384)
80 (36)
6.38 (162) 6.75 (171) 15.1 (384)
80 (36)
6.38 (162) 6.75 (171) 15.1 (384)
90 (41)
5.38 (137) 4.88 (124) 15.8 (401)
65 (29)
5.38 (137)
4.88 (124) 15.8 (401)
70 (32)
5.38 (137)
4.88 (124) 15.8 (401)
70 (32)
6.56 (167)
6.75 (171) 17.0 (432)
90 (41)
90 (41)
6.56 (167)
6.75 (171) 17.0 (432)
7.00 (178)
6.75 (171) 17.4 (442) 115 (52)
4" - 150#
4" - 150#
4" - 150#
4" - 300#
4" - 300#
6" - 150#
6" - 150#
6" - 150#
6" - 300#
6" - 300#
6.13 (156)
6.38 (162) 18.3 (465)
6.38 (162)
6.38 (162) 18.5 (470) 100 (45)
6.38 (162)
6.38 (162) 18.5 (470) 100 (45)
7.50 (191)
7.13 (181) 19.6 (498) 130 (59)
7.50 (191)
7.13 (181) 19.6 (498) 145 (66)
7.75 (197)
8.25 (210) 18.8 (478) 170 (77)
7.75 (197)
8.25 (210) 18.8 (478) 170 (77)
7.75 (197)
8.25 (210) 18.8 (478) 175 (79)
9.74 (247)
9.19 (233) 20.8 (528) 240 (109)
9.74 (247)
9.19 (233) 20.8 (528) 240 (109)
6" - 150#
6" - 300#
6" - 600#
8" - 150#
8" - 300#
8" - 600#
12” - 150#
8" - 150#
8" - 150#
8" - 150#
10" - 150#
10" - 150#
10" - 150#
16” - 150#
9.44 (240)
9.50 (241) 22.8 (579) 270 (122)
9.44 (240)
9.50 (241) 22.8 (579) 270 (122)
9.69 (246)
9.50 (241) 23.4 (594) 310 (141)
1" FNPT
2" FNPT
5.06 (129)
3.00 (76) 14.0 (356)
35 (16)
1-1/2" FNPT
3" FNPT
4.63 (118)
3.75 (95) 14.1 (358)
45 (20)
90 (41)
10.88 (276) 11.00 (279) 26.5 (673) 460 (209)
10.88 (276) 11.00 (279) 26.5 (673) 460 (209)
11.62 (295) 11.00 (279) 27.1 (688) 520 (236)
11.92 (303) 15.56 (395) 32.0 (813) 1100 (500)
F7000/8000 SERIES
INLET/OUTLET FLANGE RATINGS
Maximum Working Pressure, psig (barg)
@ Temperature
ASME
Class
150#
300#
600# *
900#
1500#
2500#
Material
C. Steel
S. Steel
C. Steel
S. Steel
C. Steel
S. Steel
C. Steel
S. Steel
C. Steel
S. Steel
C. Steel
S. Steel
-423 to -21°F -20 to 100°F
(-252 to -29°C) (-28 to 38°C)
Flange --275 (19) M
Class
--720 (49)
--1440 (99)
--2160 (149)
--3600 (248)
--6000 (413)
290 (20)
275 (19 )
750 (51)
720 (49)
1500 (103)
1440 (99)
2250 (155)
2160 (149)
3750 (258)
3600 (248)
6000 (413)
6000 (413)
200°F
(93°C)
260 (18)
235 (16)
750 (51)
620 (42)
1500 (103)
1240 (85)
2250 (155)
1860 (128)
3750 (258)
3095 (213)
6000 (413)
5160 (355)
300°F
essur
(149°C)
230 (15)
215 (14)
730 (50)
560 (38)
1455 (100)
1120 (77)
2185 (150)
1680 (115)
3640 (251)
2795 (192)
6000 (413)
4660 (321)
Carbon steel:
ASME SA- 352 LCC
Other materials available upon request.
Stainless steel:
ASME SA- 351 CF3M
Reference for pressure/temp. ratings : ASME B16.34 / B16.5
* Includes 1 x 2 and 1-1/2 x 3 NPT
Material
Buna-N
Viton®
Ethylene Propylene
Polyurethane
PTFE / Teflon®
PC TFE /Kel-F
Vespel®
PEEK
Continuous Process
Temp., oF (oC )
Min.
Ma x.
-30 (-34)
275 (135)
-30 (-34 )
400 (204)
-65 (-53)
325 (162)
-60 (-51)
225 (107)
-423 (-252) 400 (204)
-423 (-252) 400 (204)
-423 (-252) 500 (260)
0 (-1 7)
525 (273
400°F
(204°C) g
200 (13)
170 (11)
195
300(13) 400170 (11)
525
705 (48)
665 (45)
515 (35)
480 (33)
1405 (97)
1330 (91)
1025 (70)
955 (65)
2110 (145)
1995 (13)
1540 (106)
1435 (99)
3520 (242) 3325 (229)
2570 (177) 2390 (164)
5865 (404) 5540 (382)
4280 (295) 3980 ( 274)
SEAT AND SEAL DATA
Min.
Pressure,
psig (barg)
15 (1)
15 (1)
15 (1)
15 (1)
15 (1)
1000 (69)
4000 (275)
4000 (275)
Teflon and Vespel and registered trademarks of the DuPont Company.
Viton is a registered trademark of DuPont Performance Elastomers.
Valve
Size
Orifice
Size
Flow Area,
in2 (cm2)
1x 2
D
E
F
F
G
H
G
H
J
J
K
L
L
M
N
P
Q
R
T
W
0.134 (0.86)
0.235 (1.52)
0.358 (2.31)
0.358 (2.31)
0.588 (3.79)
0.916 (5.91)
0.588 (3.79)
0.916 (5.91)
1.503 (9.70)
1.503 (9.70)
2.147 (13.85)
3.277 (21.14)
3.277 (21.14)
4.147 (26.75)
5.014 (32.35)
7.397 (47.72)
12.913 (83.31)
18.704 (120.7)
30.409 (196.2)
78.81 (508.4)
1-1/2 x 3
2x 3
3x 4
4x 6
6x 8
8 x 10
12 x 16
F7000/8000 SERIES
F8000 ANNULAR
FLOW PLUGS
500°F
(260°C)
Max.
Pressure,
psig (barg)
6000 (413)
6000 (413)
6000 (413 )
6000 (413)
1000 (69)
4000 (275)
6000 ( 413)
6000 (413)
5
MAIN VALVE CONSTRUCTION
1
Part Name
1,2
1
Carbon Steel, -S1 (-N1 )
Body
Liner
Piston
Retainer
Annular Flow Plug (F8000 only)
Retainer Bolt
Piston Seal
Backup Rings
Wear / Wedge Ring
Seat
Field Test Conn. (FTC) Body
FTC Piston, Connector, Plug
Pickup Tube
Lock Nut
FTC Crush Ring
FTC Seals
Cap
Lockwasher
Cap Bolt
Liner Seal
Spool Piece (IM only)
Spool Piece O-rings (IM only)
Pilot Mounting Bolt
Nameplate
Locking Thread Insert
Pipe Plug
Dome Spring
Lifting Bracket
SA-351 CF3M
A743 CF8M
A479 316 or A351 CF8M
316 SS
A479 316
A193 B8 or B8M
Elastomer3 or PTFE4
PTFE
Graphite-filled PTFE
Elastomer or Plastic3
A479 316
316 SS
A479 316
SS
PTFE
Elastomer3
SA-240 / SA-479 316
SS
SA-193 B8
Elastomer3
316 SS
Elastomer3
304 SS
SS
304 SS (Inconel X750)
304 or 316 SS
302/304 SS (Inconel X750)
SS
SA-352 LCC
A743 CF8M
A479 316 or A351 CF8M
316 SS
A479 316
A193 B8 or B8M
Elastomer3 or PTFE4
PTFE
Graphite-filled PTFE
Elastomer or Plastic3
A479 316
316 SS
A479 316
SS
PTFE
Elastomer3
SA-516 Gr. 70
SS
SA-193 B7
Elastomer3
316 SS
Elastomer3
304 SS
SS or Aluminum
304 SS (Inconel X750)
CS
302/304 SS (Inconel X750)
A36
1 Part number material code – See Page 26
2 (Alternate materials) to meet NACE MR0175
3 See Page 5 for seat and seal selections
4 PTFE piston seals for F7040/8040 have 316 SS spring
Other materials
available upon request
"IM"-STYLE
PILOT
(F300 SHOWN)
BACKUP RING
SPOOL PIECE
O-RING
F
SPOOL PIECE
O-RING
PILOT MOUNTING
BOLTS
BACKUP RING
SPOOL PIECE
(PRESSURE ISOLATION SPOOL)
Pilot
Supply
Ports
BACKUP RING
FTC
PISTON
SPOOL PIECE
O-RING
FTC
CONNECTOR
VENTED PLUG
SPOOL PIECE SEAL
ARRANGEMENT
FTC
SEAL
FTC PISTON
SEAL
F7000/8000 SERIES
1,2
Stainless Steel, -SS (-NS )
F7040 "IM" VALVE ASSEMBLY
7
F200 SERIES PILOT VALVE OPERATION
SPECIFICATIONS
Style: Non-Flowing, Snap-Acting
Service: Gas/Vapor
Set Pressure Range: 15 – 6000 psig
OPEN (RELIEVING)
POSITION
FEATURES
FEATURES
Direct Mount to Main Valve
INLET PRESSURE
ABOVE SET
PRESSURE
Built-in Backflow Preventer
Adjustable Blowdown
Variety of Materials Available
Balanced against backpressure
when vented to atmosphere
Simple to Maintain
Main Valve Full Lift at Set Point
EXHAUST
CLOSED
POSITION
INLET PRESSURE
BELOW SET
PRESSURE
8
INLET
CLOSED
POSITION
CLOSED
POSITION
DOME
FILL
EXHAUST PRESSURE
LOADING DOME
THROUGH BFP
INLET PRESSURE
LOADING DOME
THROUGH BFP
INLET
DOME
FILL
DOME
FILL
INLET
FEED
BACKFLOW
PREVENTER
(BFP)
INLET
EXHAUST
BACKPRESSURE
INLET
F7000/8000 SERIES
1
9
F7000/8000 SERIES
SPECIFICATIONS
FEATURES
10
F7000/8000 SERIES
F300 SERIES PILOT VALVE CONSTRUCTION
Part Name
Body
Internal Plug
Lower Piston
Sleeve
Seals, O-rings
Seat
Backup Rings
Spacer Pin
Seat Retainer Nozzle
Upper Piston
Diaphragm Fastener
Diaph. Support Disc
Diaph. Support Ring
Diaphragm Disc
Diaph. Area Reducer
Adapter
Spring Washer
Spring
Bonnet
Bolt
Diaphragm
Lock Nuts
PA Screw
Cap
BFP Nozzle
BFP Piston
BFP Seal
BFP Jam Nut
Prop. Band Screw
Prop. B. S. Seal
Pipe Plugs
Inlet Screen
Vent/Bug Screen
Lockwire
Standard Mat'ls
SA-479 316
A479 316
A479 316
A479 316
Elastomer1
Elastomer1
Teflon / PTFE
A479 316
A479 316
A479 316
A479 316
A479 316
A479 316
A479 316
A479 316
A479 316
A479 316
302/304/17-7 SS
A351 CF8M
304 or 13-8 SS
Elastomer2
SS
A479 316
A479 316
A479 316
A479 316
Teflon / PTFE
304 or 316 SS
A479 316
Teflon / PTFE
304 or 316 SS
316 SS
304 or 316 SS
SS
CAP
1
PA SCREW
LOCK NUT
BONNET
VENT/
BUG SCREEN
LOCKWIRE
SPRING
DIAPHRAGM
FASTENER
DIAPHRAGM
SUPPORT DISC
DIAPH. SUPPORT
RING SEAL
DIAPHRAGM
FASTENER SEAL
BOLT
DIAPHRAGM
SUPPORT RING
DIAPHRAGM
LEAD SEAL
SEAT
F
SMALL
FACE SEAL
UPPER PISTON SEAL
UPPER PISTON
SEAT RETAINER NOZZLE
A
UPPER
SLEEVE SEAL
PROPORTIONAL
BAND SCREW
LOWER
SLEEVE SEAL
LOCK NUT
SLEEVE
PROP. BAND
SCREW SEAL
SPACER PIN
LARGE
FACE SEAL
PIPE
PLUG
A
BODY
PIPE PLUG
LOWER
PISTON
LOWER
PISTON SEAL
INTERNAL
PLUG
INLET SCREEN
PLUG SEAL
11
LP DIAPHRAGM STYLE (TO 285 PSIG)
DIAPHRAGM DISC
DIAPHRAGM
AREA REDUCER
HP DIAPHRAGM STYLE
(OVER 285 TO 500 PSIG)
1 See Page 5 for seat and seal selections
2 Available in Buna-N, Viton, EPDM, Teflon/FEP
Standard materials meet NACE MR0175
SPRING WASHER
ADAPTER SEAL
ADAPTER
BFP NOZZLE
BFP JAM NUT
PIPE
PLUG
BACKUP RING
UPPER PISTON SEAL
BACKUP RING
UPPER PISTON
BFP PISTON
BFP O-RING
BFP SEAL
BACKFLOW PREVENTER (BFP)
SECTION A-A
F7000/8000 SERIES
PISTON STYLE (OVER 500 - 6000 PSIG)
F500 SERIES PILOT VALVE OPERATION
SPECIFICATIONS
OPEN (RELIEVING)
POSITION
Style: Modulating (Non-Flowing), Balanced
Service: Gas/Vapor/Liquid
Set Pressure Range:
Diaphram Style: 15 – 285 psig
Piston Style: 285 – 6000 psig
INLET PRESSURE
ABOVE SET
PRESSURE
FEATURES
FEATURES
Direct Mount to Main Valve w/Integral Exhaust
Non-Flowing
Opens in Proportion to Upset
Balanced against Backpressure,
with Built-in Backflow Preventer
Optional Set Point Indicator Button Available
Variety of Materials Available
DOME
DISCHARGE
12
INLET
PILOT VALVE
EXHAUST
Backflow Preventer (BFP)
operation same as for F300 Pilot
(see Page 10).
DOME
FILL
CLOSED POSITION
INLET PRESSURE
BELOW SET PRESSURE
INLET
F7000/8000 SERIES
13
ACCESSORIES AND OPTIONS
Backflow Preventer (Standard Feature)
If outlet pressure exceeds the inlet pressure, the main valve can
open and backfow may occur. To prevent backflow, a standard
backflow preventer is incorporated in the F200, F300, and
F500 pilots. An increase in the outlet pressure above the inlet is
transmitted to the top of the main valve piston, thus keeping
the main valve closed and protecting the vessel from exposure
to backpressure and backflow contamination.
DOME
COMMUNICATION
PORT
EXHAUST
BACKPRESSURE
INLET FEED
INLET
CLOSED WITH BACKPRESSURE
GREATER THAN INLET PRESSURE
14
INLET
CLOSED WITH INLET PRESSURE APPLIED
Manual/Remote Blowdown
This allows the main valve to lift without opening the pilot valve,
by discharging the piston dome pressure directly to the
atmosphere. This is accomplished by use of a manual or
automatic blowdown valve, e.g. hand valve or solenoid valve.
MANUAL
VALVE
F7000/8000 SERIES
ACCESSORIES AND OPTIONS
Field Test Connection (FTC)
This allows the user to verify the set pressure while
in service without valve removal. An external pressure
source is attached to the FTC to direct pressure
to the pilot valve, while blocking off the inlet pressure,
thus checking the set pressure and the general
operation of the valve.
Inlet Supply Filter
A filter should be used for dirty applications to clean
the supply fluid to the pilot valve. This is supplied
with a drain fitting.
15
"IM"
CONSTRUCTION
Remote Pressure Pickup
Remote pressure pickup is recommended when
inlet piping pressure losses exceed 3% of relief valve
set pressure. This allows a remote, more direct
pressure sensing to the pilot valve.
F7000/8000 SERIES
F
SIZING: GASES AND LIQUIDS
REF: API RP 520, Part 1
Gases
Liquids
To size for gases, use the formulas below.
To size for liquids, use the formulas below.
To select the proper orifice for the particular service
conditions, the following information is required:
To select the proper orifice for the particular service
conditions, the following information is required:
1. Required flow capacity
2. Required set pressure
3. Operating Pressure – to assure that it is below
the reseat pressure
4. Overpressure (10% Maximum)
5. Molecular Weight/Gas Constant of Media
6. Process Temperature
Gases or Vapors
(US units)
A
V
=
(SI units)
MTZ
6.32 CKK b Kc P1
A
352.5V
=
A
=
W
CKK b Kc P1
(US units)
MTZ
CKK b Kc P1
- OR -
16
1. Required flow capacity
2. Required set pressure
3. Operating Pressure – to assure that it is below
the reseat pressure
4. Acceptable Overpressure (10% Maximum)
5. Specific Gravity of the Liquid
6. Backpressure
Q
A=
38 KK c K v
G
P1 - P2
(SI units)
11.78Q
=
A
KKc K v
G
P1 - P2
- OR TZ
M
A
=
131.6W
CKK b Kc P1
A
= Required Valve Orifice Area (in2 or cm2)
V
= Required Flow Capacity (scfm or Nm3/min)
W
= Required Flow Capacity (lb/hr or kg/hr)
K
= Certified (Derated) Coefficient of Discharge
(see chart below)
TZ
M
A
=
Required Valve Orifice Area (in2 or cm2)
Q =
Required Flow Rate (gpm or lpm)
G =
Specific Gravity of Liquid
K
Certified (Derated) Coefficient of Discharge
(see chart below)
=
Kc = 0.9 with rupture disk upstream of relief valve;
= 1.0 with no rupture disk
Kv =
Viscosity Correction Factor (see Page 17)
P1 = Pressure at Valve Inlet During Flow (psia or kPaa)
= Set Pressure + Overpressure + Patm
P1 =
=
Pressure at Valve Inlet During Flow (psig or kPag)
Set Pressure + Overpressure
Patm = Atmospheric Pressure
14.7 psia or 101.3 kPaa if unknown
P2 =
Backpressure (psig or kPag)
C
= Gas Constant
M
= Molecular Weight of Flowing Media
T
= Inlet Temperature, Absolute
R = (F + 460) or K = (C + 273)
Z
= Compressibility Factor
if Unknown, Z = 1.0
Kb = Backpressure Correction Factor See page 18 for subcritical flow;
use 1.0 for critical flow
Kc = 0.9 with rupture disk upstream of relief valve;
= 1.0 with no rupture disk
DISCHARGE COEFFICIENTS (K)
F7000
F8000
Gas
.824
.878
*Liquid
.634
--
*F300 & F500 modulating pilots only
F7000/8000 SERIES
SIZING FOR VISCOUS FLUIDS
Viscosity Correction,
per API RP520
When sizing a valve for viscous liquid service,
first size the valve for non-viscous conditions,
to determine a preliminary required orifice area.
Select the next larger orifice and then use that
area in determining the Reynold’s number (R).
The formulas below can be used to determine R.
(US units)
R
R
=
= Effective (selected) discharge area (in2or cm2)
Q
= Required flowrate at the flowing temperature
(gpm or lpm).
G
= Specific gravity of the liquid at the
flowing temperature. Water: G = 1.0
Cp
= Absolute viscosity at the flowing temperature,
in centipoise.
SSU = Viscosity at the flowing temperature,
in Saybolt Seconds Universal.
(SI units)
A
– OR –
– OR –
After the value of R is determined, Kv is obtained from
the chart below. Kv is then applied to correct the
“preliminary required flow area”. If the corrected area
exceeds the chosen standard orifice area, repeat the
above procedure using the next larger orifice size.
12700 x Q
8522 x Q
Minimum and maximum conditions should be
considered when determining the required orifice size,
for proper pilot valve operation.
Q x (2800) x G
Cp x
=
A
SSU x
A
A
R
R
=
Q x (1880) x G
Cp x
=
SSU x
A
17
F7000/8000 SERIES
SIZING AND SET PRESSURE CONSIDERATIONS FOR BACKPRESSURE
Constant Backpressure Sizing Factor (Kb)
(Gases & Vapors Only)
In general, backpressure has no effect on the flow
capacity of the FLOW SAFE F7000/8000 Series of pilotoperated valves as long as a critical flow condition exists.
The critical flow pressure ratio for a particular gas may be
estimated per API RP 520 by the equation below:
Pcf
P1
18
k
=
P1
Pcf
PB
Ps
Po
=
=
=
=
=
=
[ ]
2
k /(k-1)
K+1
Specific heat ratio for gas, Cp/Cv
(see page 20)
Upstream relieving pressure (psia)
Critical flow nozzle pressure (psia)
Backpressure, psia
Set pr essure, psia
Overpressure, psi
When sufficient back pressure exists to create
a subcritical flow condition, the critical sizing equation
shown on Page 16 should be used along with the Backpressure Sizing Factor (Kb) shown in the chart below.
This method is described in detail in API RP520.
Set pressures are not affected by backpressure when
using the F300 or F500 pilot valve as it is balanced against
such pressure, or the F200 as it is normally vented to
atmosphere. Caution should be used if the F200 vent is
routed to the main valve discharge or other pressurized
vessel, as the set pressure and blowdown may be
affected.
Backpressure greater than the system inlet pressure
normally would cause the main valve piston to open.
Because the F200, F300, and F500 pilot valves are equipped
with backflow preventers as standard features, this
cannot occur on the F7000/8000 valves. The
backpressure is routed to the main valve piston
dome, keeping the valve closed and bubble-tight.
Example: See figure below.
Set Pressure = 100 psig
Overpressure = 10 psi
Superimposed backpressure = 70 psig
Built-up backpressure = 10 psig
Percent absolute
70+10+14.7
x 100 = 76%
backpressure
=
100+10+14.7
Kb= 0.87(for k=1.4)
F7000/8000 SERIES
EQUIVALENTS AND CONVERSION FACTORS
This table may be used two ways:
1. Multiply the unit under column A by the figure under
column B, to obtain the unit under column C.
2. Divide the unit under column C by the figure under
column B; the result is then the unit under column A.
Multiply
A
By
B
Atmospheres
Atmospheres
14.697
1.033
To Obtain
C
Pounds / sq. in.
Kilograms / sq. cm.
Atmospheres
Atmospheres
Atmospheres
Atmospheres
Atmospheres
Atmospheres
29.92
760.
407.1
33.90
1.013
101.326
Inches of mercury
Millimeters of mercury
Inches of water
Feet of water
Bars
KiloPascals
Barrels
Bars
Bars
Bars
42.
14.5
1.02
100.0
Gallons (U.S.)
Pounds / sq. in.
Kilograms / sq. cm.
KiloPascals
Centimeters
Centimeters
Centimeters
Centimeters
Cubic centimeters
Cubic feet
Cubic feet
Cubic ft. / minute
Cubic ft. / second
Cubic inches
Cubic inches
Cubic meters
Cubic meters / hour
Cubic meters / minute
0.3937
0.03281
0.01
0.01094
0.06102
7.48055
0.17812
.02831
448.833
16.39
0.004329
264.17
4.4
35.32
Inches
Feet
Meters
Yards
Cubic inches
Gallons
Barrels
Cubic meters / minute
Gallons / minute
Cubic centimeters
Gallons
Gallons
Gallons / minute
Cubic ft./ minute
Feet
Feet
Feet
Feet of water
Feet of water
Gallons (U.S.)
Gallons (U.S.)
Gallons (U.S.)
Gallons (Imperial)
Gallons (U.S.)
Gallons (U.S.)
Gallons of water
Gallons of liquid
/ minute
Gallons / minute
Grams
Inches
Inches
Inches
0.3048
0.3333
30.48
0.882
0.433
3785.
0.13368
231.
277.4
0.833
3.785
8.328
550 x Sp. Gr.
0.002228
.035
2.54
0.0833
0.0254
F7000/8000 SERIES
Meters
Yards
Centimeters
Inches of mercury
Pounds / sq. in.
Cubic centimeters
Cubic feet
Cubic inches
Cubic inches
Gallons (Imperial)
Liters
Pounds (at 21°C)
Pounds / hour liquid
(at 21°C)
Cubic ft / second
Ounces
Centimeters
Feet
Meters
Multiply
A
Inches
Inches of mercury
Inches of mercury
Inches of mercury
Inches of mercury
Inches of water
Inches of water
Kilograms
Kilograms
Kilograms
Kilograms
Kilograms / minute
Kilograms / sq. cm.
Kilograms / sq. cm.
Kilograms / sq. cm.
KiloPascals
KiloPascals
KiloPascals
Liters
Liters
Liters
Liters / hour
By
B
0.02778
1.133
0.4912
0.0334
0.0345
0.03613
0.07355
2.205
0.001102
35.27
.2646
132.3
14.22
0.9678
28.96
.145
.01
.0102
.035
1000.
0.2642
0.0044
Meters
Meters
Meters
Meters
3.281
1.0936
100.
39.37
Pounds
.1198
Pounds
Pounds
Pounds
Pounds
Pounds
Pounds / hour
Pounds / hour liquid
Pounds / sq. in.
Pounds / sq. in.
Pounds / sq. in.
Pounds / sq. in.
Pounds / sq. in.
Pounds / sq. in.
Pounds / sq. in.
To Obtain
C
Yards
Feet of water
Pounds / sq. in.
Atmospheres
Kilograms / sq. cm.
Pounds / sq. in.
Inches of mercury
Pounds
Short tons (2000 lbs)
Ounces
Gallons (U.S.)
H2O @ 70F
Pounds / hour
Pounds / sq. in.
Atmospheres
Inches of mercury
Pounds / sq. in.
Bars
Kilograms / sq. cm.
Cubic feet
Cubic centimeters
Gallons
gallons / minute
Feet
Yards
Centimeters
Inches
H2O @ 70F
Gallons (U.S.)
453.6
Grams
0.0005
Short tons (2000 lbs)
0.4536
Kilograms
0.000454 Metric tons
16.
Ounces
6.32/M.W. Cubic ft. / minute
0.002/Sp.Gr. Gallons / minute liquid
(at 21C )
27.703
Inches of water
2.308
Feet of water
2.036
Inches of mercury
0.0703
Kilograms / sq. in.
0.0680
Atmospheres
51.71
Millimeters of mercury
0.7037
Meters of water
Specific gravity
(of gas or vapors)
Square centimeters
Square Inches
28.97
Water (cubic feet)
62.3
0.1550
6.452
Temperature
Celsius = 5/9 (Fahrenheit – 32)
Fahrenheit = 9/5 (Celsius) + 32
Molecular Wt.
(of gas or vapors)
Square inches
Square centimeters
Pounds (at 21C )
19
ENGINEERING DATA
Molecular Weights and “C” Factors
On the following pages are published capacity charts
for two common gases, air and natural gas, and for
water. These charts can be used for direct selection
of the safety relief valve orifice required without
calculations. Capacities in these charts are based
upon a process media temperature of 60F , and a
compressibility factor (Z) = 1.0. To determine capacities
at other temperatures, further calculations should be
made using the formulas on Page 16.
Listed below are the molecular weights, specific heat
ratios, and “C” factors for common gases. This “C”
factor is used in formulas for sizing valves for
gas or vapor service.
Gas
20
Acetylene - C2H2
Air
Ammonia - NH3
Argon - Ar
Benzene - C6H6
Carbon Disulphide - CS2
Carbon Dioxide - CO2
Carbon Monoxide - CO
Chlorine - Cl2
Cyclohexane
Ethane - C2H6
Ethylene - C2H4
Freon 22
Helium - He
Hexane - C6H14
Hydrochloric Acid - HCl
Hydrogen - H2
Hydrogen Sulfide - H2 S
Iso Butane
Methane - CH4
Methyl Alcohol - CH3OH
Methyl Chloride - CH3Cl
Methyl Mercaptan - CH4S
N-Butane - C4H10
Natural Gas
Nitrogen - N2
Oxygen - O2
Pentane - C5H12
Propane - C3H8
Propylene - C3H6
Sulphur Dioxide - SO2
Water Vapor/Steam
Mol. Wt
Specific
Heat Ratio
(Cp/Cv)
C
26
29
17
40
78
76
44
28
71
84
30
28
86.5
4
86
36.5
2
34
58
16
32
50.5
48.1
58
19
28
32
72
44
42
64
18
1.28
1.40
1.31
1.66
1.10
1.21
1.29
1.40
1.36
1.08
1.19
1.24
1.18
1.66
1.08
1.40
1.41
1.32
1.11
1.31
1.20
1.20
1.20
1.11
1.27
1.40
1.40
1.09
1.13
1.15
1.28
1.30
345
356
348
377
327
338
346
356
352
324
336
341
335
377
324
356
357
348
328
348
337
337
337
328
345
356
356
325
330
332
345
347
Specific
Heat Ratio
(Cp/Cv)
1.00
1.02
1.04
1.06
1.08
1.10
1.12
1.14
1.16
1.18
1.20
1.22
1.24
1.26
1.28
1.30
1.32
1.34
1.36
1.38
1.40
1.42
1.44
1.46
1.48
1.50
C
Specific
Heat Ratio
(Cp/Cv)
C
315
318
320
322
324
327
329
331
333
335
337
339
341
343
345
347
349
351
352
354
356
358
359
361
363
365
1.52
1.54
1.56
1.58
1.60
1.62
1.64
1.66
1.68
1.70
1.72
1.74
1.76
1.78
1.80
1.82
1.84
1.86
1.88
1.90
1.92
1.94
1.96
1.98
2.00
2.20
366
368
369
371
372
374
376
377
379
380
382
383
384
386
387
388
390
391
392
394
395
397
398
399
400
412
F7000/8000 SERIES
AIR
F7000 GAS FLOW CAPACITIES
10% / 3 psi Overpressure, 60 degF, Z=1.0, MW=29
VA LVE SIZE
ORIFICE AREA(in2)
K
1x2
0.719
0.824
1-1/2x3
1.767
0.824
2x3
2.953
0.824
3x4
6.605
0.824
4x6
11.437
0.824
6x8
26.06
0.824
8x10
45.66
0.824
12x16
111.87
0.824
Set Pressure
(psig)
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
15
20
25
30
40
50
75
100
150
200
250
285
290
300
400
500
600
700
740
750
800
900
1000
1100
1200
1300
1400
1480
1500
355
409
464
518
637
757
1055
1354
1951
2548
3145
3563
3622
3742
4936
6130
7324
8518
8995
9115
9712
10906
12100
13294
14488
15682
16876
17831
18070
872
1006
1139
1272
1566
1859
2593
3327
4794
6261
7728
8755
8902
9195
12130
15064
17999
20933
22107
22400
23868
26802
29736
32671
35605
38540
41474
43822
44409
1458
1681
1904
2127
2617
3107
4333
5559
8011
10463
12915
14632
14877
15367
20271
25175
30079
34983
36945
37435
39887
44791
49695
54599
59503
64407
69311
73234
74215
3261
3759
4258
4756
5853
6950
9692
12435
17919
23403
28888
32727
33275
34372
45341
56310
67279
78247
82635
83732
89216
100185
111154
122123
133091
144060
155029
163804
165998
5646
6509
7373
8236
10135
12035
16783
21531
31028
40525
50021
56669
57618
59518
78511
97504
116497
135491
143088
144987
154484
173477
192470
211464
230457
249450
268443
283638
287436
12865
14832
16799
18767
23094
27422
38241
49061
70699
92338
113977
129124
131288
135615
178893
222170
265448
308725
326036
330364
352002
395280
438557
481834
525112
568389
611666
646288
654944
22541
25988
29435
32881
40464
48047
67003
85960
123873
161787
199700
226239
230031
237613
313440
389267
465093
540920
571251
578834
616747
692574
768400
844227
920054
995880
1071707
1132369
1147534
55227
63672
72117
80561
99139
117717
164162
210607
303498
396388
489278
554301
563590
1500
2000
2220
2250
18070
24040
26667
27025
35286
46944
52073
52773
56296
74896
83079
84195
135915
180819
200578
203272
53938
60933
67928
74923
81917
86697
87746
86055
97215
108375
119535
130695
138320
139994
207762
234705
261648
288591
315534
333945
337986
60161
63317
71205
79093
86981
94870
112344
118236
132966
147696
162426
177157
ORIFICE AREA
ORIFICE AREA
0.719
0.521
2300
2600
2900
3200
3500
3705
3750
20016
22611
25207
27803
30398
32172
32561
3800
4000
4500
5000
5500
6000
32994
34724
39050
43376
47702
52029
ORIFICE AREA
0.521
F7000/8000 SERIES
1.404
1.404
0.950
2.240
2.240
1.774
5.408
10.315
5.408
10.315
259238
344888
382574
387713
396278
447667
499057
550447
601837
636953
644661
Nm3/hr = scfm
0.6218
lb/hr air = 4.59 x (scfm)
21
AIR
ORIFICE SIZE
ORIFICE AREA (in 2 )
K
Set Pressure
(psig)
22
F8000 (API) GAS FLOW CAPACITIES
10% / 3 psi Overpressure, 60 degF, Z=1.0, MW=29
D
0.134
0.878
E
0.235
0.878
F
0.358
0.878
G
0.588
0.878
H
0.916
0.878
J
1.503
0.878
K
2.147
0.878
L
3.277
0.878
M
4.147
0.878
N
5.014
0.878
P
Q
R
T
W
7.397 12.913 18.704 30.409 78.81
0.878 0.878 0.878 0.878 0.878
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
15
70
124
188
309
482
791
1129
1724
2181
2638
3891
6793
9839
15996 41456
20
81
143
217
357
556
912
1302
1987
2515
3041
4486
7831
11343
18442 47795
25
92
161
246
404
629
1032
1475
2251
2849
3444
5081
8870
12848 20888 54134
30
103
180
275
451
703
1153
1647
2515
3182
3847
5676
9908
14352 23334 60473
40
127
222
338
555
865
1419
2027
3094
3916
4735
6985
12193 17662 28714 74418
50
150
263
401
659
1027
1685
2407
3674
4650
5622
8294
14478 20971 34095 88364
75
210
367
560
919
1432
2350
3357
5124
6484
7840
11566
20191 29246 47548 123228
100
269
471
718
1180
1837
3015
4307
6574
8319
10058 14838 25903 37520 61000 158092
150
387
679
1035
1700
2648
4345
6206
9473
11988
14494 21383 37328 54068 87905 227819
200
506
887
1352
2220
3458
5675
8106
12372 15657
18930 27927 48753 70617 114809 297547
250
624
1095
1668
2740
4269
7004
10006
15272 19326
23367 34472 60178 87165 141714 367274
285
707
1241
1890
3104
4836
7935
11335
17301 21894
26472 39053 68175 98749 160547 416084
290
719
1261
1922
3156
4917
8068
11525
17591 22261
26915 39708 69318 100404 163237 423057
300
743
1303
1985
3260
5079
8334
11905
18171 22995
27803 41016 71603 103714 168618
400
980
1719
2619
4301
6700
10994 15704
23970 30333
36675 54106 94452 136811 222427
500
1217
2135
3252
5341
8321
13653 19503
29768 37671
45547 67195 117302 169908 276236
600
1454
2551
3886
6382
9942
16313 23303
35567 45010
54420 80284 140152 203005 330045
700
1691
2966
4519
7422
11563
18972 27102
41366 52348
63292 93373 163002 236102 383855
740
1786
3133
4772
7839
12211
20036 28621
43685 55283
66841 98608 172141 249340 405378
750
800
1810
1929
3174
3382
4836
5153
7943
8463
12373 20302 29001
13184 21632 30901
44265 56017
47164 59686
67728 99917 174426 252650 410759
72164 106462 185851 269199 437664
900
2166
3798
5786
9503
14804 24292 34700
52963 67024
81037 119551 208701 302296 491473
1000
2403
4214
6420
10544 16425 26951 38499
58762 74362
89909 132640 231551 335393 545282
1100
2640
4630
7053
11584
64561 81700
98781 145729 254400 368490 599091
1200
2877
5046
7686
12625 19667 32270 46097
70359 89039 107654 158818 277250 401586 652900
1300
3114
5461
8320
13665 21288 34930 49897
76158 96377 116526 171907 300100 434683 706709
1400
3351
5877
8953
14706 22909 37589 53696
81957 103715 125398 184996 322950 467780 760518
1480
3541
6210
9460
15538 24206 39717 56735
86596 109586 132496 195468 341229 494258 803566
1500
3588
6293
9587
15746 24530 40249 57495
87755 111053 134271 198085 345799 500877 814327
2000
4774
8372
12754 20949 32634 53547 76491 116749 147744 178632 263531
2220
5296
9287
14148 23238 36200 59398 84849 129506 163888 198152 292327
2250
5367
9412
14338 23550 36686 60196 85988 131245 166089 200813 296254
2300
5485
9620
14655 24070 37497 61526 87888 134145 169759 205249 302798
2600
6197
10867
16555 27191 42359 69504 99285 151541 191773 231866 342065
2900
6908
12115
18456 30313 47222 77483 110683 168937 213788 258483 381333
3200
7619
13362
20356 33434 52085 85462 122080 186333 235802 285100 420600
3500
8331
14610
22257 36556 56947 93441 133478 203729 257817 311717 459867
3705
8817
15462
23555 38689 60270 98893 141266 215616 272860 329906 486700
3750
8923
15649
23840 39157 60999 100090 142976 218226 276162 333898 492590
3800
9042
15857
24157 39677 61810 101419
4000
9516
16689
25424 41758 65052 106739
4500
10702 18768
28592 46960 73156 120036
5000
11887
20847
31759 52163 81260 133334
5500
13073 22927
34926 57365 89365 146632
6000
14259 25006
38094 62567 97469 159930
18046 29611
42298
SCFM
SCFM
Nm3/hr = scfm
0.6218
lb/hr air = 4.59 x (scfm)
F7000/8000 SERIES
NATURAL GAS
ORIFICE SIZE
10% / 3 psi Overpressure, 60 degF, Z=1.0, MW=19
D
0.134
0.878
E
0.235
0.878
F
0.358
0.878
G
0.588
0.878
H
0.916
0.878
J
1.503
0.878
K
2.147
0.878
L
3.277
0.878
M
4.147
0.878
N
5.014
0.878
P
Q
R
T
W
7.397 12.913 18.704 30.409 78.81
0.878 0.878 0.878 0.878 0.878
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
SCFM
84
148
225
370
577
947
1352
2064
2612
3158
4659
8133
11780
19151 49634
20
97
171
260
427
665
1091
1559
2379
3011
3641
5371
9376
13581 22080 57224
25
110
193
294
484
753
1236
1766
2695
3410
4123
6083
10620
15382 25008 64813
30
123
216
329
540
842
1381
1972
3011
3810
4606
6796
11863
17183 27937 72402
40
151
266
405
665
1036
1699
2427
3705
4688
5669
8363
14599
21146 34379 89099
50
180
315
481
789
1230
2018
2882
4399
5567
6731
9930
17335
25108 40821 105795
75
251
440
670
1101
1715
2814
4019
6135
7763
9386
13848 24174
35015 56927 147537
100
322
564
860
1412
2200
3610
5156
7870
9960
12042 17765 31013
44921 73033 189278
150
464
813
1239
2035
3170
5202
7431
11342
14353 17353 25601 44692
64734 105245 272761
200
606
1062
1618
2658
4141
6794
9705
14813
18746 22665 33437 58370
84547 137457 356243
250
748
1311
1997
3281
5111
8386
11979
18284
23138 27976 41272 72049 104360 169669 439726
285
847
1485
2263
3717
5790
9501
13571 20714
26213 31694 46757 81624 118229 192218 498164
290
861
1510
2301
3779
5887
9660
13799 21061
26653 32225 47541 82992 120211 195439 506512
300
890
1560
2377
3904
6081
9978
14254 21756
27531 33287 49108 85728 124173 201881
400
1173
2058
3135
5149
8022
13162
18802 28698
36317 43910 64779 113085 163799 266305
500
1457
2556
3894
6395
9962
16347
23351 35641
45103 54532 80450 140442 203425 330729
600
1741
3054
4652
7641
11903
19531
27899 42583
53889 65155 96121 167799 243051 395153
700
2025
3552
541
8887
13844
22715
32448 49526
62674 75777 111792 195156 282677 459577
740
2139
3751
5714
9385
14620
23989
34267 52303
66189 80027 118061 206099 298527 485346
750
2167
3801
5790
9509
14814
24307
34722 52997
67067 81089 119628 208835 302490 491789
800
2309
4049
6169
10132 15784
25899
36997 56468
71460 86400 127463 222514 322303 524001
900
2593
4547
6927
11378
17725
29084
41545 63411
80246 97023 143134 249871 361929 588425
1000
2877
5045
7686
12624 19666
32268
46094 70354
89032 107645 158806 277228 401555 652848
1100
3161
5543
8444
13869 21606
35452
50642 77296
97817 118268 174477 304585 441181 717272
1200
3445
6041
9203
15115 23547
38636
55191 84239 106603 128890 190148 331943 480807 781696
1300
3729
6539
9961
16361 25487
41820
59740 91181 115389 139513 205819 359300 520432 846120
1400
4012
7037
10720 17607 27428
45005
64288 98124 124175 150135 221490 386657 560058 910544
1480
4240
7435
11326 18603 28981
47552
67927 103678 131203 158633 234027 408543 591759 962083
1500
4296
7535
11478 18852 29369
48189
68837 105067 132960 160758 237161 414014 599684 974968
2000
5716
10024
15270 25081 39072
64110
91580 139780 176889 213871 315517
2220
6340
11199
16939 27822 43341
71115 101587 155053 196218 237240 349993
2250
6425
11269
17167 28195 43923
72071 102951 157136 198854 240427 354695
2300
6567
11517
17546 28818 44894
73663 105225 160607 203246 245738 362530
2600
7419
13011
19821 32555 50715
83215 118871 181435 229604 277606 409544
2900
8271
14505
22096 36293 56537
92768 132517 202263 255961 309474 456557
3200
9122
15998
24372 40030 62359 102321 146163 223091 282318 341342 503571
3500
9974
17492
26647 43767 68181 111873 159809 243918 308675 373209 550584
3705
10556
18512
28202 46321 72159 118041 169133 258151 326686 394985 582710
3750
10684
18737
28543 46881 73033 119834 171180 261275 330640 399766 589762
3800
10826
18985
28923 47504 74003 121426
4000
11394
19981
30439 49995 77884 127795
4500
12813
22471
34232 56224 87587 143716
Nm3/hr = scfm
0.6218
5000
14232
24960
38024 62453 97290 159637
5500
15652
27449
41816 68681 106993 175558
lb/hr nat. gas = 3.00 x (scfm)
6000
17071
29939
45608 74910 116697 191479
ORIFICE AREA (in 2 )
K
Set Pressure
(psig)
15
24
F8000(API) GAS FLOW CAPACITIES
SCFM
F7000/8000 SERIES
WATER
F7000 LIQUID FLOW CAPACITIES
10% / 3 psi Overpressure, 70 degF, G = 1
VALVE SIZE
ORIFICE AREA(in2)
K
1x2
0.719
0.634
1-1/2x3
1.767
0.634
2x3
2.953
0.634
3x4
6.605
0.634
4x6
11.437
0.634
6x8
26.06
0.634
8x10
45.66
0.634
12x16
111.87
0.634
Set Pressure
(psig)
GPM
GPM
GPM
GPM
GPM
GPM
GPM
GPM
15
20
25
30
40
50
75
100
150
200
250
285
290
300
400
500
600
700
740
750
800
900
1000
1100
1200
1300
1400
1480
1500
ORIFICE AREA
1500
2000
2220
2250
ORIFICE AREA
2300
2600
2900
3200
3500
3705
3750
ORIFICE AREA
3800
4000
4500
5000
5500
6000
73
83
92
100
115
128
157
182
223
257
287
307
309
315
363
406
445
481
494
498
514
545
575
603
629
655
680
699
704
0.719
704
812
856
862
0.521
631
671
709
745
779
801
806
0.521
812
833
883
931
976
1020
181
204
225
245
282
316
387
446
547
631
706
754
760
773
893
998
1094
1181
1215
1223
1263
1339
1412
1481
1547
1610
1671
1718
1729
1.404
1374
1587
1672
1683
1.404
1701
1809
1910
2007
2099
2159
2172
0.950
1480
1518
1610
1697
1780
1859
302
341
376
409
472
528
646
746
914
1055
1180
1260
1271
1292
1492
1668
1828
1974
2030
2043
2110
2238
2360
2475
2585
2690
2792
2871
2890
2.240
2192
2531
2667
2685
2.240
2714
2886
3048
3202
3349
3445
3466
1.774
2763
2835
3007
3170
3324
3472
675
763
842
914
1056
1180
1445
1669
2044
2360
2639
2818
2842
2891
3338
3732
4088
4416
4540
4571
4720
5007
5278
5535
5781
6017
6245
6421
6464
5.408
5292
6111
6438
6482
5.408
6553
6968
7359
7730
8084
8318
8368
1169
1321
1458
1583
1828
2043
2503
2890
3539
4087
4569
4879
4921
5005
5780
6462
7079
7646
7861
7914
8174
8670
9139
9585
10011
10420
10813
11118
11192
10.315
10094
11656
12280
12363
10.315
12500
13290
14036
14744
15420
15865
15961
2664
3011
3322
3607
4165
4656
5703
6585
8065
9312
10412
11116
11214
11405
13170
14724
16129
17422
17913
18033
18625
19754
20823
21839
22810
23742
24638
25332
25503
4667
5276
5821
6319
7297
8158
9992
11537
14130
16316
18242
19477
19647
19983
23075
25798
28261
30525
31385
31596
32632
34612
36484
38265
39966
41598
43169
44385
44684
11435
12926
14262
15483
17878
19988
24480
28267
34620
39976
44694
47721
48137
* Caution: Use only modulating pilots for liquid service
F7000/8000 SERIES
lpm = 3.785 x (gpm)
lph = 227.1 x (gpm)
25
PART NUMBERING
The following part numbering system is to be used when ordering
a FLOW SAFE F7000 or F8000, with F200, F300, or F500 Pilot Valves:
7
8
Full Bore
Reduced Bore
2
3
5
F200 (Gas Only)
F300 (Gas or Liquid)
F500 (Gas or Liquid)
SOFTGOODS
4
5
Plastic
Elastomer (O-Ring)
FLOW AREA
0
D thru W
VALVE TYPE
PILOT VALVE TYPE
00
05
10
12
14
16
18
ASME PRESSURE CLASS
7
2
5
0
05
03
04
F
26
S1
F
ACCESS
MATERIAL
INLET FACING
OUTLET
S
F
R
M
CB
Full Bore
API Orifice
FNPT
Class 150
Class 300
Class 600
Class 900
Class 1500
Class 2500
D
Closed dome tee
Special
Filter
SO NO solenoid valve
Remote sense SC NC solenoid valve
Manual blowdown
Cryo block
S1 Standard (Stainless Trim)
SS All Stainless
N1 NACE Standard (Stainless Trim)
NS NACE (All Stainless)
X
Duplex SS
SP Special
F
R
T
S
Raised face
RTJ
Screwed
Special
L Reflange hub
G Grayloc hub
FF Flat face
02 thru 16 Outlet, Inches
01 thru 12 Inlet, Inches
INLET
EXAMPLES:
DESCRIPTION
1. 4"x 6", Modulating-type (non-flowing) Pilot
Valve; Set Pressure=600 psig, Natural Gas
Service, Carbon Steel, NACE, 300# RF Inlet,
150# RF Outlet, ‘M’ Orifice, Buna-N Seals, Filter
2. 3"x4", Snap-Acting-type Pilot Valve; Set
Pressure=75 psig, Cryogenic N2 Service,
Stainless Steel, 150# RF Inlet, 150# RF
Outlet, Full Bore, Teflon Main Valve Seat
3. 1-1/2"x3", Modulating-type (flowing) Pilot Valve;
Set Pressure=50 psig, 60F , Fresh Water
Service, Stainless Steel, 1-1/2" FNPT Inlet,
3" FNPT Outlet, ‘G’ Orifice, Teflon Seat
DESIGNATION
DESIGNATION
DESIGNATION
[email protected] psig
with Buna-N Seat & Seals
[email protected] psig
with Teflon Seat
[email protected] psig
with Teflon Seat
F7000/8000 SERIES
COMPANY ____________________________
REF. NO. ______________________________
FLOW SAFE REF. NO. __________________
SPECIFICATION SHEET AND ORDER FORM
PLEASE ANSWER ALL QUESTIONS
SKETCH AREA/COMMENTS
TAG NO.
QTY.
/ Delivery Request: _____ weeks
SERVICE MEDIA
SER VICE CONDITIONS
MOLECULAR WEIGHT (M)
SPECIFIC GRAVITY
COMPRESSIBILITY FACTOR (Z)
VISCOSITY
3
REQUIRED
CAPACITY
SCFM (NM /HR)
LB/HR. (KG/HR)
GPM (LPM)
SET
PRESSURE
PSIG
27
BARG
ALLOWABLE OVERPRESSURE
%
REQUIRED BLOWDOWN
%
PSIG
BACKPRESSURE
BARG
F
RELIEVING TEMPERATURE
LOX
REQD CLEAN LEVEL
C
GOX
BODY MATERIAL
SEAT & SOFT GOODS
VA LVE SELECTION
TRIM MATERIAL
OPTION NUMBERS
SIZE & ASME CLASS INLET/OUTLET
SPECIAL INLET/OUTLET
FLANGE FACING
RF
ORIFICE SELECTED
RTJ
ORIFICE CALCULATED
VALVE ASSEMBLY NUMBER
ACCESSORIES
MODIFICATIONS
PHOTOCOPY FOR YOUR RECORDS — SEND OR FAX COPY TO FLOW SAFE INC,
OR YOUR AUTHORIZED REPRESENTATIVE
"Experts in Soft-Seated Valve Technology"
F7000/8000 SERIES
F7000/8000 Series
F84/85 Series
F70U Series
F88 Series
Balanced Safety
Relief Valve
Safety Relief Valve
Safety Relief Valve –
IM Construction
Unloader Valve
(Gas or Liquid)
F84L Series
F70PR Series
Liquid Relief Valve
Pressure Relief Valve
, INC
S-3865 Taylor Road
Orchard Park, NY 14127
Sales, Service Fax Literature, sizing, IOM's For Quotations -
(716) 662-2585
(716) 662-2580
www.flowsafe.com
[email protected]
YOUR AUTHORIZED REPRESENTATIVE:

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