Regulators - LP-Gas Equipment Inc.

Regulators
The LP Gas Regulator - Workhorse of the Industry
The LP Gas regulator is called upon to deliver a very precise operating pressure to a load which can vary from pilot flow to wide
open flow and at the same time compensate for extreme changes in tank supply pressure. In a properly sized propane system, this is
accomplished consistently and automatically without user intervention or in most cases without user knowledge of the dynamics.
Amazing Indeed!
Some Examples of Regulator Systems
Single Stage
11” W.C.
Regulator
Single Stage Systems
Pounds to Pounds Systems
Pounds to pounds regulators are used extensively on industrial burners such as torches,
tar kettles and crop dryers.
Single stage regulators may only
be used on portable appliances
and outdoor cooking appliances.
No fixed piping systems.
Two Stage Systems
Twin Stage Systems
Twin stage regulators incorporate the 1st stage
and 2nd stage in one compact body. They are
used for smaller systems with relatively short
piping runs.
Two stage regulators are used where the storage is remote from
the load. Two stage offers superior, uniform pressure control.
Twin Stage
11” W.C.
Regulator
Second Stage
2 PSI
Regulator
2 PSIG Systems
2 PSIG systems use three
regulator stages which
allows smaller, more
compact piping in the
building.
Line Pressure
11” W.C.
Regulator
1
First Stage
10 PSI
Regulator
Regulators
Single Stage Regulators
These compact regulators are designed for smaller outdoor applications.
Single stage regulators may not be installed in fixed piping systems per NFPA 58.
Part
Number
BTU/HR*
Capacity
Inlet
Connection
302V
125,000
1/4” FNPT
302V9LS
125,000
MPOL
LV2302A2
302V9LS
LV2302P
150,000
1/4” FNPT
Outlet
Connection
Outlet
Pressure
3/8” FNPT
11” W.C.
MPOL
* Propane capacity based on 25 PSIG inlet pressure and 9” W.C. delivery pressure.
LV2302A2
Twin Stage Regulators
These compact regulators are designed for small domestic applications.
Models available with 11” W.C. or 2 PSIG discharge pressures.
LV404B34V9
Part
Number
BTU/HR*
Capacity
Inlet
Connection
Outlet
Connection
LV404B34V9
450,000*
1/4” FNPT
LV404B39V9
450,000*
FPOL
LV404B46
525,000*
1/4” FNPT
LV404B9V9
525,000*
1/4” FNPT
1/2” FNPT
LV404Y9
800,000**
FPOL
1/2” FNPT
Outlet
Pressure
1/2” FNPT
3/4” FNPT
11” W.C.
2 PSIG
* Propane capacity based on 25 PSIG inlet pressure and 9” W.C. delivery pressure.
** Propane capacity based on 25 PSIG inlet pressure and 1.5 PSIG delivery pressure.
LV404B39V9
and
LV404Y9
Domestic First Stage Regulators
These regulators are used for first stage regulation in two-stage bulk tank systems.
They reduce container pressure to an intermediate pressure of 5 to 10 PSIG.
Part
Number
BTU/HR*
Capacity
Inlet
Connection
LV3403TR
1,500,000
1/4” FNPT
LV4403SR4
LV4403TR4
LV4403SR9
LV4403TR9
1/2” FNPT
2,500,000
FPOL
Outlet
Connection
Outlet
Pressure
10 PSIG
5 PSIG
1/2” FNPT
10 PSIG
5 PSIG
10 PSIG
* Propane capacity based on inlet pressure 20 PSIG higher than the set pressure and
delivery pressure 20% lower than the setting.
LV4403TR9
LV3403TR
2
Regulators
Regulator Capacity Charts - Twin Stage & First Stage
The capacity of any given regulator drops drastically at reduced inlet pressures. The standard capacities listed on page 2 are only
intended as a comparative guide and should not be used for final regulator selection. Use the following flow charts with particular
attention to the lowest expected temperature and associated tank pressure.
DELIVERY PRESSURE
Inches of Water Column
LV404B9V9 Twin Stage Regulator
INITIAL SETTING
13
12
11
10
9
CFH/hr
BTU/hr
EXAMPLE:
The standard capacity for the LV4403TR9 regulator
is listed at 2,500,000 BTU/HR. At around -12 OF, the
tank pressure falls to approximately 15 PSIG.
150 PSI INLET
100 PSI INLET
Under these conditions, the LV4403TR9 capacity
chart shows the delivery pressure dropping to
approximately 8 PSIG with a flow of only 1,250,000.
This capacity is 1/2 the standard capacity.
10 PSI INLET
25 PSI INLET
30
75,000
60
75 PSI INLET
90
120 150
180
210 240 270
225,000
375,000
525,000
675,000
DELIVERY PRESSURE
PSIG
FLOW PROPANE
Note: Under heavy load conditions, the temperature
of the gas in the storage tank will be considerably less
than the ambient air temperature as the liquid boils to
keep up with the demand. This reduces the available
tank pressure even futher.
LV3403TR First Stage Regulator
12
INITIAL SETTING
11
150 PSIG INLET
100 PSIG INLET
10
50 PSIG INLET
9
CFH/hr
BTU/hr
25 PSIG INLET
100
250,000
200
500,000
300
750,000
400
500
1,000,000 1,250,000
600
1,500,000
LOW TEMP =
LOW TANK PRESSURE =
LOW REGULATOR INLET PRESSURE
700
1,750,000
FLOW PROPANE
Vapor Pressure Of Propane
DELIVERY PRESSURE
PSIG
LV4403TR9 First Stage Regulator
12
11
10
9
8
7
CFH/hr
BTU/hr
150 PSI INLET
125 PSI INLET
100 PSI INLET
INITIAL SETTING
50 PSI INLET
25 PSI INLET
15 PSI INLET
100
200 300 400 500 600 700 800 900 1000
500,000
1,000,000
1,500,000
2,000,000
2,500,000
FLOW PROPANE
DELIVERY PRESSURE
PSIG
1584M, X1584M Regulator
INITIAL SETTING
50 PSIG INLET
100 PSIG INLET
150 PSIG INLET
14
10
6
2
10 PSIG INLET
CFH/hr
500
BTU/hr 1,250,000
1000
25 PSIG INLET
1500
2000
3,750,000
2500
3000
3500
6,250,000
7,750,000
FLOW PROPANE
3
Temperature
O
F
Pressure
PSIG
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
1.3
5.5
10.7
16.7
23.5
31.3
40.8
51.6
63.3
77.1
92.5
109.3
128.1
149.3
172.3
197.3
225.0
Regulators
Domestic Low Pressure Second Stage Regulators
Designed to reduce first stage pressure of 5 to 20 PSIG down to burner pressure, normally 11” W.C.
Part
Number
BTU/HR*
Capacity
LV3403B4
Inlet
Connection
Outlet
Connection
450,000
LV4403B4
1/2” FNPT
LV4403B4VO**
LV4403B66RA
1/2” FNPT
LV4403B46
935,000
LV4403B46R***
LV3403B4
Outlet
Pressure
LV4403B66
11” W.C.
LV4403B66R***
3/4 FNPT
LV4403B66RA****
LV5503B4
1,000,000
1/2” FNPT
1,600,000
LV5503B6
LV5503B8
3/4” FNPT
3/4” FNPT
2,300,000
1” FNPT
* Propane capacity based on 10 PSIG inlet pressure and 9” W.C. delivery pressure.
** Vent located above outlet.
*** Back Mount design.
**** Right Angle design
LV4403B46R
LV5503B4
LV4403B4
2 PSIG Second Stage Regulators
Designed to reduce first stage pressure of 10 PSIG down to 2 PSIG.
A line pressure regulator is required downstream to reduce 2 PSIG to 11” W.C.
Part
Number
LV4403Y4
LV4403Y46R**
LV4403Y4
143-80HP
BTU/HR*
Capacity
Inlet
Connection
Outlet
Connection
750,000
1/2” FNPT
1/2” FNPT
750,000
1/2” FNPT
3/4” FNPT
LV5503Y6
1,210,000
3/4”FNPT
3/4”FNPT
LV5503Y8
1,210,000
3/4” FNPT
1” FNPT
143-80HP 1-1/4”
2,373,840
1-1/4”
1-1/4”
243-8 1-1/4”
3,165,120
1-1/4”
1-1/4”
243-8 1-1/2”
6,330,240
1-1/2”
1-1/2”
243-8 2”
6,330,000
2”
2”
243-12 1-1/2”
9,495,360
1-1/2”
1-1/2”
243-12 2”
11,077,920
2”
2”
121-8 2”
61,719,840
2”
2”
121-12 2”
77,545,440
2”
2”
* Propane capacity based on 10 PSIG inlet and 10% droop.
** Back Mount design.
4
Outlet
Pressure
2 PSIG
243-8 2”
Regulators
Line Pressure Regulators For 2 PSIG Systems
Designed to reduce 2 PSIG line pressure down to 11” W.C.
1/2” & 3/4” sizes include a vent limiting device which allows them to be used indoors.
1-1/4” size cannot be fitted with vent limiter.
Regulator must be mounted in the horizontal position when using the vent limiting device.
Part
Number
BTU / HR*
Overall Capacity
BTU / HR**
Per Appliance
Inlet
Connection
Outlet
Connection
Outlet
Pressure
325-3
395,640
221,558
1/2” FNPT
1/2” FNPT
11” W.C.
325-5
870,408
474,760
3/4” FNPT
3/4” FNPT
11” W.C.
325-7
1,582,560
1,424,304
1-1/4” FNPT
1-1/4” FNPT
11” W.C.
325-3
* Propane capacity based on 1 PSIG pressure drop across regulator.
** Largest single appliance size for reasonable lockup and delivery pressure.
Industrial Second Stage Regulators
Designed to reduce 10 PSIG line pressure down to 11” W.C.
Other spring ranges available for special applications.
Part
Number
BTU / HR*
Capacity
Inlet
Connection
Outlet
Connection
143-80 3/4”
1,614,211
3/4” FNPT
3/4” FNPT
143-80 1”
1,899,072
1” FNPT
1” FNPT
143-80 1-1/4”
2,848,608
1-1/4” FNPT
1-1/4” FNPT
243-8 1-1/4”
4,589,424
1-1/4” FNPT
1-1/4” FNPT
243-8 1-1/2”
11,077,920
1-1/2” FNPT
1-1/2” FNPT
243-8 2”
11,077,920
2” FNPT
2” FNPT
243-12 1-1/2”
12,976,922
1-1/2” FNPT
1-1/2” FNPT
243-12 2”
20,573,280
2” FNPT
2” FNPT
121-12 2”
80,710,560
2” FNPT
2” FNPT
Outlet
Pressure
6 -14” W.C.
* Propane capacity based on 10 PSIG inlet pressure and 11” W.C. delivery pressure.
243-8
243-12
5
143-80
121-12
Regulators
A Word About High Pressure Regulators
Downstream Overpressure Protection
Unlike their Domestic First Stage cousins, the High Pressure Pounds to Pounds regulators do not offer built-in
overpressure protection for downstream equipment. These regulators normally operate with high inlet pressures
and have relatively large orifice sizes. These regulators do not have built-in full capacity relief devices.
When installing High Pressure Pounds to Pounds regulators, care must be taken to protect downstream equipment from damage should the High Pressure regulator fail. If for instance a regulator seat should fail, uncontrolled inlet pressure will be allowed into the downstream piping. An external pressure relief valve installed
downstream from these regulators is often required for adequate system protection.
See Vapor Relief Valve Section
High Pressure Pounds To Pounds Regulators
Designed to reduce tank pressure down to between 3 and 100
PSIG. Ideal for a variety of pounds to pounds applications.
The 597 series is suitable for liquid or vapor service.
Part
Number
BTU / HR**
Capacity
597FA
500,000
597FB
820,000
597FC
1,000,000
597FD
1,250,000
In & Out
Connection
Outlet
Pressure
3 - 15 PSIG
1/4” FNPT
10 - 25 PSIG
20 - 45 PSIG
40 - 100 PSIG
** Propane capacity based on inlet pressure 20 PSIG higher and delivery
pressure 20% lower than set pressure.
597 Series
High Temp/High Pressure Pounds To Pounds Regulators
X1580 series regulators have special construction for high temp LP Gas service such as
crop drying, heat treating or asphalt mixing. Designed to reduce tank pressure down to
between 3 and 125 PSIG. Ideal for a variety of pounds to pounds applications.
Part
Number
X1580 Series
BTU / HR**
Capacity
X1584MN
7,000,000
X1584ML
7,500,000
X1586MN
11,000,000
X1586ML
12,000,000
X1588MN
11,000,000
In & Out
Connection
1/2” NPT
3/4” NPT
1” NPT
Outlet
Pressure
3 - 30 PSIG
25 - 50 PSIG
3 - 30 PSIG
25 - 50 PSIG
3 - 30 PSIG
** Propane capacity based on inlet pressure 20 PSIG higher and delivery
pressure 20% lower than set pressure.
6
Regulators
Industrial First Stage Regulators
Designed to reduce tank pressure down to between 5 and 20 PSIG. These regulators are used for the first cut
from tank or vaporizer in multi million BTU applications. Other spring ranges and flow capacities available to
meet specific needs.
These regulators do not provide overpressure protection for the downstream equipment. An external pressure
relief valve installed downstream from these regulators is often required for adequate system protection.
See Vapor Relief Valves Section
1580 Series
Part
Number
BTU / HR*
Capacity
15 PSI In
BTU / HR*
Capacity
50 PSI In
1584MN
3,500,000
7,000,000
1584ML
----
7,500,000
1584MH
----
8,000,000
45 - 125 PSI
1586MN
7,500,000
11,000,000
3 - 30 PSIG
1586ML
----
12,000,000
1586MH
----
14,000,000
45 - 125 PSIG
1588MN
7,500,000
11,000,000
3 - 30 PSIG
1588ML
----
12,000,000
1588MH
----
14,000,000
627/7710
5,222,448
17,560,086
1” FNPT
10 - 20 PSIG
630-78
9,495,360
25,320,960
2” FNPT
8 - 20 PSIG
99-513 7/8” or.
12,343,968
53,807,040
2” FNPT
5 - 15 PSIG
99-504 1-1/8” or.
20,573,280
90,205,920
2” FNPT
5-15 PSIG
In & Out
Connection
Outlet
Pressure
3 - 30 PSIG
1/2” FNPT
3/4” FNPT
1” FNPT
25 - 50 PSIG
25 - 50 PSIG
25 - 50 PSIG
45 - 125 PSIG
* Propane capacity. Rated capacites vary greatly with differing inlet pressures. The 15 PSIG values
are offered for selection of the proper regulator in cold weather, reduced tank pressure situations.
99-504
630-78
7
627/7710
Regulators
Vapor Relief Valves
Designed to provide overpressure protection after high pressure regulators per requirements of NFPA 58.
Proper selection of the relief device requires that the failure flow rate of the high pressure regulator be known.
Other spring ranges and flow capacities available to meet specific needs.
3139-10
Part
Number
Spring
Range
Size
CFH Flow Propane
at 20 PSIG
Pipeaway
Adapter
3139-18
18 PSIG (fixed)
1/4” MNPT
1357
3139-10 3/8” FNPT
289H-43
10 - 20 PSIG
1” FNPT
20,096
Use 1” pipe
289H
Typical external relief installation
3139-18
Automatic Changeover Regulators
Designed for two cylinder applications. Provides automatic changeover from “service” to “reserve” cylinder.
Part
Number
7525B34
7525B4
5755B4*
7525B34
BTU /
HR**
Capacity
400,000
500,000
Inlet
Connection
Outlet
Connection
Service
Indicator
Outlet
Pressure
1/4” Inverted
Flare
1/2” FNPT
Integral
11” W.C.
* Includes pigtails and mounting bracket.
** Propane capacity based on 25 PSIG inlet pressure and 9” W.C. delivery pressure.
7525B4
Specialty RV Regulators
Smaller, compact twin-stage and automatic changeover regulators mainly for RV applications.
Part
Number
BTU / HR*
Capacity
Inlet
Connection
Outlet
Connection
Outlet
Pressure
299-00
160,000
1/4” FNPT
3/8” FNPT
11” W.C.
254-00
130,000
1/4” Inv Flare
3/8” FNPT
11” W.C.
* Propane capacity based on 25 PSIG inlet pressure and 9” W.C. delivery pressure.
299-00
254-00
8
Regulator Accessories
Pigtails/Hogtails
Copper pigtails with brass connectors provide an effective method of connecting regulators to storage tank outlet valves.
912 Pigtails are 1/4” O.D. copper
Part Number
1/4” Tube
Connections
MPOL X
MPOL
1/4” Inverted
Flare
X MPOL
1/4” MNPT
X MPOL
1/2” MNPT
X MPOL
3/8” Tube
Approximate
Length
7/8” Hex
Short Nipple
1 1/8” Hex
Long Nipple
7/8” Hex
Short Nipple
5”
----
----
913PS05
12”
912PS12
----
913PS12
20”
912PS20
912PA20
913PS20
30”
912PS30
----
913PS30
36”
912PS36
912PA36
913PS36
48”
912PS48
912PA48
913PS48
20”
912FS20
912FA20
----
30”
912FS30
----
----
36”
912FS36
----
----
5”
----
----
913JS05
12”
912JS12
----
913JS12
20”
912JS20
----
913JS20
36”
912JS36
----
----
12”
----
----
913LS12
913 Hogtails are 3/8” O.D. copper
913PS12
912JS12
912FS20
Regulator Brackets
Specially designed to mount RegO regulators where a bracket is required.
Part
Number
Material
2503-22
Cadmium
Plated
Steel
2503-19
Aluminum
2302-31
For Use With Regulator
2302 Series / LV404B34 /
LV3403B4 / LV3403TR
LV404B9 Series, LV5503 Series
LV4403 Series
2503-19
2503-22
2302-31
9
Regulator Accessories
Regulator Vent Piping
DO NOT USE THE
RUBBER SUPPRESSOR
FOR VENTS OVER 1/4”
The vent line must be as large as the vent opening on the regulator.
The termination must be protected from the elements and insects.
For Indoor Venting
TERMINATE WITH A VENT SCREEN
Use the appropriate size standard pipe and terminate the run outdoors with a vent
screen. Do not use PVC indoors.
3/4” NPT
For Outdoor Venting
Use either the appropriate size pipe or the equivalent size
UL651 SCH 40 Rigid PVC Conduit and terminate the run with a vent screen.
4403-30
Screen
Y602-9
Screen
UL 651 SCH 40 Rigid PVC Conduit
uit
Cond
C
V
P
rical L 651)
t
c
e
l
le E
gs (U
Samp nd Fittin Locally
a
hase
Purc
Pipe and fittings are nonmetallic PVC. They are resistant to sunlight and
are UL Listed for exposed or outdoor usage. Lightweight and easy cement
joint installation.
Remote Regulator Venting Examples
Outdoors
Use Steel Pipe or UL 651 PVC
Indoors
Use Steel Pipe and Fittings
Regulator vent discharge must be remote from
building openings, air intakes & ignition sources.
Regulators installed inside buildings
must be vented to the outdoors.
Screen
Refer to NFPA 58 for Point of Discharge requirements.
10
Screen
Regulator Accessories
Multiple Cylinder Manifolds
Use with suitable pigtails to connect multiple cylinders together. Ideal for loads that
require more than one cylinder to be in service at a time.
Part
Number
1350E
1350R
1450E
1350E
1450R
Inlet
Connections
Outlet
Connection
FPOL
MPOL
1/4” Inverted
Flare
1/4” MNPT
Disc
Check
No
Yes
No
1450R
Yes
Pressure Test Equipment
APTK
TEST KIT
ACCESS
VALVE
Leak Testing Made Simple
♦ Permanantly installed access valve with automatic shutoff and
First Stage Regulator
with Access Valve
dust cap eliminates breaking into the system.
♦ Flexible hose with 90 degree knurled swivel adapter provides
hand tight hookup even in tight quarters.
♦ 15 PSI pressure gauge for accurate pressure test.
♦ Bleed valve to reduce system pressure before testing.
Low Pressure Test Kit
For checking low pressure systems.
Gauge has dual 35” w.c. & 20 oz.
scales. Includes 3 ft. flexible hose
with belled end
2434A
High Pressure Gauge Adapter
For checking high pressure systems. MPOL X FPOL with 300#
pressure gauge and bleeder.
19062
1/8” NPT
Access valves include caps with
resilient seat for gas tight seal.
Low Pressure Manometer Kit
For checking low pressure systems.
16” w.c. magnetic flex manometer, 3
ft. hose, green dye & tubing adapters.
1212 KIT
2962
11
19063
1/4” NPT