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Griffco High-Flow Back Pressure Valves

bpv high-flowGriffco High-Flow 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. Larger orifice size makes the valves ideal for use with higher viscosity fluids.

Wetted Materials:

  • PVC
  • CPVC
  • PP
  • PVDF
  • PTFE
  • 316 SS
  • Alloy 20
  • Hastelloy® C

Available Sizes:

1/2", 3/4" & 1" or DN 15, DN 20 & DN 25

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 250 psi (17 bar)
  • 4 optional pressure ratings (springs)
  • 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)

Sizes, Flow Capacities & Pressure Ratings
Size Maximum Flow Maximum Pressure
Pulsating Continuous
Inch Metric GPH LPH GPM LPM PSI BAR
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

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)

3d-star 

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

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

Griffco Unibody Back Pressure Valves

Griffco's new Unibody back pressure valve is the latest innovation to ensure leak-free connections and operation. This new design allows flexibility of changing connection types, provides ease of maintenance, and eliminates additional system components (extra unions) saving time and money. As with all of the Griffco designs, the chemical feed system is safeguarded by applying a continuous back pressure to the chemical feed pump, while also acting as an anti-siphon valve. This new construction ensures increased leak-free reliability in the rigorous service of municipal and industrial applications.

warrantyWetted Materials:

PVC
CPVC

Available Sizes:

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

Features & Benefits:

  • Solid, robust, single-piece machined construction
  • No seals or glued connections
  • Compact size for OEM applications
  • High reliability at a low cost
  • Anti-siphon function
  • Available in PVC and CPVC
  • Union style connections
  • Molded Noryl top with integral hardware locking
  • Vulcanized composite PTFE/EPDM diaphragm
  • Multiple diaphragm material options
  • Long diaphragm life
  • Adjustable up to 150 psi (10 bar)
  • 2 optional pressure ratings (springs)
  • Valve sizes from 1/2" to 1" or DN 15 to DN 25
  • Tamper-resistant adjustment screw
  • Two-year warranty

 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 LPH PSI BAR
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

Griffco G-Series Back Pressure Valves

3d-star Griffco G-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 20bpv-g
  • Hastelloy® C

Available Sizes:

  • 1/2" to 4" or DN 15 to DN 100

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 (25 bar)
  • 4 optional pressure ratings (springs)
  • Valve sizes from 1/2" to 4" or DN 15 to DN 100
  • 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
1/2" DN 15 320 1,211 17 63 350 24
3/4" DN 20 367 1,389 19 72 350 24
1" DN 25 462 1,798 24 90 350 24
1-1/2" DN 40 1,388 5,254 72 275 250 17
2" DN 50 1,533 5,803 80 302 250 17
3" DN 80 5,157 19,521 270 1,020 250 17
4" DN 100 5,157 19,521 270 1,020 250 17