Griffco High Pressure Series

High-pressure diaphragm relief valves.

SERIES DETAILS:

Griffco High-Pressure diaphragm pressure relief valves are designed to protect chemical feed systems from overpressure damage caused by defective equipment or a blockage in the chemical feed line. Robust construction ensures reliability in the rigorous service of municipal and industrial applications.

Wetted Materials: 316 SS, Alloy 20, Hastelloy® C

Available Sizes: 1/4″, 3/8″, 1/2″, 3/4″ & 1″ or DN 8, DN 10, DN 15, DN 20 & DN 25

Features & Benefits:

Pressure range 350 to 4000 psi (24 to 275 bar)
High reliability at a low cost
Compact size for OEM applications
2-port, 90° configuration
PVDF piston
Solid, robust, machined construction
Threaded and socket connection options
316 SS top standard
Composite PTFE/EPDM diaphragm
Multiple diaphragm material options
Long diaphragm life
Valve sizes from 1/4″ to 1″ or DN 8 to DN 25
4 optional pressure ratings (springs)
Tamper-resistant adjustment screw
High-temperature option up to 300°F (149°C)
Factory or field settable

MANUFACTURERS: Griffco

Griffco HIgh Pressure Pressure Relief Valves

Model Number	Mfg.	Connection Size/Type	Material	Price
PRHP025A	Griffco	1/4" NPT	Alloy 20	Call for Pricing
PRHP025C	Griffco	1/4" NPT	Hastelloy C	Call for Pricing
PRHP025S	Griffco	1/4" NPT	316 SS	Call for Pricing
PRHP038C	Griffco	3/8" NPT	Hastelloy C	Call for Pricing
PRHP038S	Griffco	3/8" NPT	316 SS	Call for Pricing
PRHP050A	Griffco	1/2" NPT	Alloy 20	Call for Pricing
PRHP050C	Griffco	1/2" NPT	Hastelloy C	Call for Pricing
PRHP050S	Griffco	1/2" NPT	316 SS	Call for Pricing
PRHP075S	Griffco	3/4" NPT	316 SS	Call for Pricing
PRHP100S	Griffco	1" NPT	316 SS	Call for Pricing