Griffco M-Series Pressure Relief Valves

Griffco M-Series diaphragm back pressure valves are designed to protect chemical feed systems from over pressure 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:

• PVC

• CPVC

• PP

• PVDF

• PTFE

• Halar®

• 316 SS

• Alloy 20

• Hastelloy®C

Available Sizes:

1/4" to 1/2" or DN 8 to DN 15

Features & Benefits:

• High reliability at a low cost

• 2-port, 3-port, and 90º configurations

• Solid, robust, machined construction

• Wide range of materials

• Union, threaded and socket connection options

• Molded Noryl top with integral hardware locking

• 316L metal valve and top options

• Molded PTFE/EPDM diaphragm

• Multiple diaphragm material options

• Long diaphragm life

• Adjustable up to 350 psi (24 bar)

• 4 optional pressure ratings (springs)

• Valve sizes from 1/4" to 1/2" or DN 8 to DN 15

• Tamper-resistant adjustment screw

• High-temperature option up to 300ºF (149ºC)

• Factory or field settable

Download Technical Data Sheet: Imperial (US) | Metric (International)