Griffco G-Series Solid PTFE Flanged Pressure Relief Valves


Griffco, G-Series, Solid, PTFE, Flanged, Pressure Relief Valves

Griffco G-Series diaphragm pressure relief valves with solid PTFE flanges are designed to protect chemical feed systems from over pressure damage caused by defective equipment, a blockage in the chemical feed line, or a shut valve. Robust construction ensures reliability in the rigorous service of municipal and industrial applications.

Wetted Materials:

PTFE

Available Sizes:

1/2" to 1" or DN 15 to DN 25

Features & Benefits:

  • Solid, robust, one-piece machined construction

  • Complete PTFE valve body

  • Flanged connection

  • Leak-free design - no glue, no seals

  • High reliability at a low cost

  • Anti-siphon function

  • Molded Noryl top with integral hardware locking

  • Composite PTFE/EPDM diaphragm

  • Multiple diaphragm material options

  • Long diaphragm life

  • Adjustable up to 150 psi (10 bar)

  • Valve sizes from 1/2" to 1"or DN 15 to DN 25

  • Tamper-resistant adjustment screw

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

  • Factory or field settable

Sizes, Flow Capacities & Pressure Ratings
Size Maximum Flow Maximum Pressure
Pulsating Continuous
Inch Metric GPH LPH GPM LPM PSI BAR
1/2" DN 15 300 1,135 21 80 350 24
3/4" DN 20 300 1,135 21 80 350 24
1" DN 25 500 1,890 26 98 350 24

 


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