PRESSURE REDUCING REGULATORS
PRESSURE REDUCING REGULATORS
MODEL POSR-1
MODEL 1000LP
MODEL 31-N
MODEL 1465
The POSR-1 is a low-cost, pilot-operated pressure reducing steam regulator with a bellows seal design that eliminates sticking. Pilot and main valve trim are hardened 416 SST for long life. These regulators can maintain outlet pressure within + /- 5% and are commonly used in large steam heating installations and process applications with coolers, pasteurizers, sterilizers, vulcanizers, and other equipment. Available without the pilot as a pressure-loaded regulator.
This 1000LP-Series Regulator has a larger diaphragm area than its 1000HP counterpart to handle lower operating pressures. But the 1000LP’s basic construction, specifications, and superior rangeability mirrors the 1000HP regulator. The internal design isolates the diaphragm from fluid velocity effects and eliminates flow-induced instability at high and low-flow rates.
The Model 1465 is intended specifically for low-flow and high-pressure drop applications. It is frequently used to reduce pressure on a sample fluid to allow easier sampling/analysis.
Model 31-N is designed for use in the process industry where low-pressure gas is controlled. Corrosion-resistant ST or SST construction negates gas
diffusion effects. The 31-N is designed primarily for blanketing fluids that are volatile, corrosive, or lethal. No internal relief.
Body size: 1/4" Maximum Cv:
Pressures :
Inlet: up to 5000 psig, (344 barg) Outlet: 5 to 500 psig, (0.34 - 34 barg)
0.05 (0.109"orifice) to 0.19 (0.156"orifice)
Pressure drop :
Body sizes:
Temperature range:
Up to 4700 psid, (324 bard)
Materials: Body
Body sizes:
End connections:
1/2", 3/4", 1", 1-1/2", 2"
-30° F to +400° F, (-34° C to +204° C)
316 SST
Options :
1/2", 3/4", 1" Maximum Cv: 3 to 9 Materials: Body
NPT, BSP, Flanged, Extended Pipe Ends, flanges in ASME or DIN
Maximum Cv: 0.5 to 3.9 Materials: Body
Pressures:
Spring chamber
BR, 316L SST
NACE construction, high outlet pressure construction
Body sizes:
Pressures:
Inlet: up to 100 psig, (6.9 barg) Outlet: 2" W.C. to 16" W.C., (5 mbarg to 40 mbarg) Pressure drop: Up to 100 psid, (6.9 bard) Options: Pharmaceutical
The Model POSR-1 is a low- cost pilot-operated steam regulator with bellows seals that eliminates sticking.
Trim Seat
SST
1/2", 3/4", 1" Maximum Cv: 3.4 to 5.8 Materials: Body
Inlet: up to 300 psig, (20 barg) Outlet: 5 to 150 psig, (0.34 -10 barg)
Temperature range:
Metal – Stellite
-20° F to +600° F, (-6° C to +315° C)
CS, 316 SST CS, 316 SST
Diaphragm
302 SST, Neoprene, Elgiloy, FKM
CI, BRZ, CS, 316 SST Spring chamber CI, CS, 316 SST, BRZ Trim BR, 416 SST, 316 SST Seat Metal – SST Composition – Buna-N, TFE, F.C. Elastomer Diaphragm Phos. BRZ, 302 SST, Neoprene, F.C. Elastomer, EPDM
Pressures:
Spring chamber
The Model 1465 is a low-flow regulator for condensate
Inlet: up to 450 psig standard, (31 barg) Outlet: 1 to 30 psig, (0.069 - 2barg)
Trim Seat
316L SST
The Model 1000LP is a
End connections: NPT Temperature range:
DI, CS
Pressure drop:
Composition – Buna-N, Silicone, F.C. Elastomer
The Model 31-N is a regulator designed for up to 16" W.C. control.
Seat
Metal – HDN 416 SST
Up to 200 psid, (13 barg)
and food industry construction
pressure reducing regulator with a large diaphragm area to handle lower
Diaphragm 302 SST
Options:
Diaphragm
Buna-N, F.C. Elastomer
analyzer letdown.
-20° F to +400° F, (-28° C to +204° C)
Pressure loaded main valve
End connections: NPT Temperature range:
Options:
End connections:
Similar to options for 1000 HP
NPT, Flanges, Extended Nipples, flanges in ASME or DIN
operating pressures.
Up to +450° F, (232° C)
MODEL POSR-2
MODEL 3381
Body sizes: 1/4", 3/8" Maximum Cv: 0.5 Materials: Body
End connections: NPT Temperature range:
The POSR-2 is a high-capacity version of the POSR-1. It utilizes a pressure-loaded piston design to eliminate the common problem of main valve diaphragm rupture. The POSR-1 and POSR-2 also eliminate common pilot valve sticking and provide high sensitivity and stability even on older or intermittently used steam systems.
Body sizes:
Temperature range:
The Model 3381 is designed to handle low to moderate flows. It is suitable for controlling a wide range of fluids, including industrial gases, air, oil, steam, and water. High- mass plug provides stability.
-325° F to +400° F, (-198° C to +204° C)
1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 3", 4"
Up to +450° F, (+232° C)
Pressures:
Maximum Cv: 6.9 to 88 Materials: Body
Pressures:
BRZ BRZ
Inlet: up to 800 psig, (55 barg) Outlet: 5 to 300 psig, (0.34 - 20 barg)
Inlet: up to 300 psig, (20 barg) Outlet: 5 to 150 psig, (10 barg)
Spring chamber
Trim Seat
BR
Options:
DI, CS
Pressure drop:
Metal – BR Composition – Buna-N, TFE Phos. BRZ, Neoprene, FKM
Cryogenic construction, dome loading, panel mounting, outlet pressure gauge
Seat Metal – HDN 416 SST Diaphragm 302 SST – pilot only
Up to 200 psid, (13 barg)
The Model 3381 is a bronze regulator for low-flow service.
Options:
The Model POSR-2 is a high-capacity,
Diaphragm
Handwheel
End connections:
NPT, Flanged, flanges in ASME or DIN
pilot-operated steam regulator with bellows seal that eliminates sticking.
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