P98H Relief Valve/Back Pressure Regulator
The P98H relief valve/back pressure regulator is designed to sense upstream pressure, opening to relieve excess pressure increases above set point. As a back pressure regulator, the upstream pressure is monitored and released downstream when the set point is exceeded.
Applications:- Pulp and Paper – Boilers, Heaters, PM Drums
- Chemical Boilers, Process Heaters
- Water and Waste Water Systems
- Steam Injection
Pilot Operated
No
Flange Type
150 RF Flanged,
300 RF Flanged,
600 RF Flanged
Connection
NPT,
Flanged,
Socket Weld
Application(s)
Industrial
Diaphragm Material
302 SS
Neoprene
Neoprene
Rebuild Kits
yes
Body, Bonnet, Diaphragm Material
Body, Bonnet, Diaphragm Case Options:
Cast Iron, Steel
Diaphragm Options:
302 SS, Neoprene
Valve Plug / Seat Options:
Nitrile Valve Plug / SS Orifice
Metal Valve Plug / SS Orifice
Cast Iron, Steel
Diaphragm Options:
302 SS, Neoprene
Valve Plug / Seat Options:
Nitrile Valve Plug / SS Orifice
Metal Valve Plug / SS Orifice
Spring Range
5 – 35 PSIG
20 – 65 PSIG
50 – 100 PSIG
80 – 170 PSIG
20 – 65 PSIG
50 – 100 PSIG
80 – 170 PSIG
Body Sizes
1-1/2 NPT
2 NPT
2 NPT
Max Inlet Body Pressure
300 PSIG WCB Steel
250 PSIG @ 400˚F Cast Iron
300 PSIG @ 300˚F Cast Iron
250 PSIG @ 400˚F Cast Iron
300 PSIG @ 300˚F Cast Iron
Product Description
Type P98H Back Pressure Regulator
Model
P98H
Find Your Part Number
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