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Griffco G-Series Solid PTFE Flanged Back Pressure Valves

Griffco G-Series diaphragm back pressure valves with solid PTFE flanges are designed to enhance the performance of chemical feed systems by applying a continuous back pressure to the chemical feed pump, while also acting as an anti-syphon 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
  • 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 300°F (149°C)
  • Factory or field settable

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

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bpv-g-ptfe flanged

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