Back Pressure Valves from Griffco

back pressure valves, griffco, griffco valves, unibody, m-series, g-series, bpv, primary fluidGriffco offers a variety of back pressure valves and options that work in many different applications. There are three main types of back pressure valves:

  • M-Series: Low flow (1/4" to 1/2" or DN 8 to DN 15 connections)
  • G-Series: Medium to large flow (1/2" to 4" or DN 15 to DN 100 connections)
  • High Flow: High flow (1/2" to 1" or DN 15 to DN 25 connections)

Variations and Options Include:

  • NEW Unibody: Valve with union connections, made from a solid PVC or CPVC body
  • PTFE Flanged: G-Series valve with flange connections, made from a solid PTFE body
  • ARV: Air release valve acts as a priming valve for a back pressure valve

Standard Materials:

  • PP

  • PVC

  • CPVC

  • PVDF

  • TFE

  • Halar®

  • 316SSL

  • Alloy 20

  • Hastelloy® C

Standard Connections:

  • Threaded

  • Flanged

  • Union

  • Socket

Spring Ranges:

  • 10 to 150 psi (1 to 10 bar) standard

  • 0 to 50 psi (0.0 to 3.5 bar)

  • 10 to 250 psi (1 to 17 bar)

  • 50 to 350 psi (3.5 to 25 bar)

Diaphragm Materials:

  • EPDM/PTFE (standard)

  • FKM (Viton®)

  • CSM (Hypalon®)

  • PTFE/FKM

  • Kalrez®

Configurations:

  • 180º ports (standard)

  • 90º

  • Wall mount

Options:

  • Priming port

  • Adjustment knob

  • Metal tops

  • Metal adjustment screw

  • Material certifications

 

Sizes, Flow Capacities & Pressure Ratings
Series Size Maximum Flow Maximum Pressure
Pulsating Continuous
Inch Metric GPH LPH GPM LPM PSI BAR
M-Series 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
Unibody 1/2" DN 15 260 984 15 57 150 10
3/4" DN 20 300 1,135 21 80 150 10
1" DN 25 500 1,890 26 98 150 10
G-Series 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
1-1/2" DN 40 1,200 4,542 63 238 250 17
2" DN 50 2,350 8,892 120 473 250 17
3" DN 80 5,200 19,600 270 1,020 250 17
4" DN 100 5,200 19,600 270 1,020 250 17
High-Flow 1/2" DN 15 600 2,271 30 114 250 17
3/4" DN 20 600 2,271 30 114 250 17
1" DN 25 1,000 3,785 54 204 250 17

 


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