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Griffco M-Series Back Pressure Valves

Griffco M-Series diaphragm back pressure valves 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:

  • 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
  • Anti-siphon function
  • Solid, robust, machined construction
  • Wide range of materials
  • Flanged, 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 300°F (149°C)
  • Factory or field settable

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

 

Sizes, Flow Capacities & Pressure Ratings
Size Maximum Flow Maximum Pressure
Pulsating Continuous
Inch Metric GPH LPH GPM LPM PSI BAR
1/4" DN 8 100 375 5 19 350 24
3/8" DN 10 200 757 10 37 350 24
1/2" DN 15 260 984 15 57 350 24
3d-star
bpv-m-series
arv-option

Optional ARV air release valve acts as a priming valve for M-Series back pressure valves.