Designed for systems that require high flow, high relief, and pressure regulation. This unit can be installed in an inaccessible location with a control regulator in an accessible location.
Note: See the HPR250 series for an HPR251 with integral control regulator.
Inlet Pressure Range: 10 PSIG (min) to 450 PSIG (max) (0.7 TO 31 bar)
Outlet PSI Range: 0-250 PSI (17.2 bar)
Operating Temp: 0°F TO 175°F (-18°C to 79°C) (Air moisture content must be dry)
Flow Rating: Flow rates exceed 2,000 SCFM
Body: Cast aluminum
Dome: Cast aluminum
Cap: Teflon coated aluminum
Valve: Nitrile bonded aluminum
Elastomers: Nitrile
Ports: 2” or 1-1/2-NPTF
Gauge Ports: 1/4-NPTF
Exhaust Port: 3/4-NPTF
Catalog Pages
Service Kits and Other Literature
Service Kits & Maintenance Parts
Diaphragm Kit:
A251-71...Includes diaphragm assembly & 2 o-ring seals
Valve Kits:
A251-81...Includes valve, stem, valve spring, washer, retaining ring & 2 o-ring seals
Seal Kit:
A251-91...Includes all o-rings/seals and screen
Product Configurator
Part Number | Description | Price | |
---|---|---|---|
HPR251-12 | PILOT OPERATED REG 1-1/2 | $984.47 | |
HPR251-12A | REGULATOR | $984.47 | |
HPR251-12AG | REGULATOR | $1,003.45 | |
HPR251-12AGW | REGULATOR | $1,003.45 | |
HPR251-12AW | REGULATOR | $984.47 | |
HPR251-12G | REGULATOR | $1,003.45 | |
HPR251-12GW | REGULATOR | $1,003.45 | |
HPR251-12W | REGULATOR | $984.47 | |
HPR251-16 | PILOT OPERATED REG 2" | $984.47 | |
HPR251-16A | REGULATOR | $984.47 | |
HPR251-16AG | REGULATOR | $1,003.45 | |
HPR251-16AGW | REGULATOR | $1,003.45 | |
HPR251-16AW | REGULATOR | $984.47 | |
HPR251-16G | REGULATOR | $1,003.45 | |
HPR251-16GW | REGULATOR | $1,003.45 | |
HPR251-16W | REGULATOR | $984.47 |