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Griffco - Back pressure Valves
Highlights
- High reliability at affordable price
- Long diaphragm life
- Wide range of valve materials
- Multiple diaphragm material options
Specifications
- Max Flow Pulsating 300 gph
- Max Flow Continuous 15 gpm
- Max Pressure 350 psi
Features
- Anti-siphon function
- Solid, robust, machined construction
- Flanged, union, threaded and socket connection options
- Molded Noryl top with integral hardware locking
- 316L SS metal valve and top options
- Molded PTFE/EPDM diaphragm
- 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)
M-Series Low-Flow Back Pressure Valves
Griffco M-Series diaphragm low-flow back pressure valves are crafted to improve the efficiency of chemical feed systems. They exert a consistent back pressure on the chemical feed pump while functioning as an anti-siphon valve. The robust construction guarantees reliability in the demanding service conditions of both municipal and industrial applications.
Highlights
- High reliability at affordable price
- Long diaphragm life
- Multiple diaphragm material options
- Compact size for OEM applications
- Two Year Warranty
Specifications
- Maximum Flow Pulsating 500 gph
- Maximum Flow Continuous 26 gpm
- Maximum Pressure 250 psi
Features
- Solid, robust, single-piece machined construction
- No seals or glued connections
- Anti-siphon function
- Available in PVC and CPVC
- Union style connections
- Molded Noryl top with integral hardware locking
- Vulcanized composite PTFE/EPDM diaphragm
- Adjustable up to 250 psi
- 2 optional pressure ratings (springs)
- Valve sizes from 1/2" to 1" or DN 15 to DN 25
- Tamper-resistant adjustment screw
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 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.
Highlights
- High reliability at affordable price
- Long diaphragm life
- Wide range of valve materials
- Multiple didaphragm material options
- Factory or field settable
Specifications
- Maximum Flow Pulsating 5,157 gph
- Maximum Flow Continuous 270 gpm
- Maximum Pressure 350 psi
Features
- Anti-siphon function
- Solid, robust, machined construction
- Flanged, union, threaded and socket connection options
- Molded Noryl top with integral hardware locking
- 316L SS metal valve and top options
- Molded PTFE/EPDM diaphragm
- 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 degrees fahrenheit
G-Series Medium-Flow Back Pressure Valves
Griffco G-Series back pressure valves are created to improve the efficiency of chemical feed systems. They achieve this by maintaining a consistent back pressure on the chemical feed pump, simultaneously functioning as an anti-siphon valve. The sturdy construction guarantees reliability in the demanding service conditions of both municipal and industrial applications.
Highlights
- High reliability at affordable price
- Long diaphragm life
- Wide range of valve materials
- Multiple diaphragm material options
- Factory or field settable
Specifications
- Maximum Flow Pulsating 5,157 gph
- Maximum Flow Continuous 270 gpm
- Maximum Pressure 250 psi
Features
- Anti-siphon function
- Solid, robust, machined construction
- Flanged, union, threaded and socket connection options
- Molded Noryl top with integral hardware locking
- 316L SSmetal valve and top options
- Molded PTFE/ EPDM diaphragm
- Adjustable up to 250 psi (17 bar)
- 4 optional pressure ratings (springs)
- Valve sizes from 1/2" to 2" or DN 15 to DN 50
- Tamper-resistant adjustment screw
- High-temperature option up to 300 degrees Fahrenheit
High-Flow Back Pressure Valves
Griffco High-Flow diaphragm back pressure valves are designed to enhance the performance of chemical feed systems by providing continuous back pressure to the chemical feed pump and serving as an anti-siphon valve. These valves are well-suited for use with high-viscosity fluids, thanks to their larger orifice size.
Highlights
- High Reliability at affordable price
- Long diaphragm life
- Multiple diaphragm material options
Specifications
- Maximum Flow Pulsating 1,060 gph
- Maximum Flow Continuous 56 gpm
- Maximum Pressure 800 psi
Features
- Solid, robust, single-piece machined construction
- Anti-siphon function
- Avaliable in 316 SS, A20, Hast. C and Titanium
- Adjustable up to 800 psi (55 bar)
- Valve sizes from 1/4" to 1" or DN 8 to DN 25
- Tamper-resistant adjustment screw
Highlights
- High Reliability at affordable price
- Long diaphragm life
- Multiple diaphragm material options
- Factory or field settable
Specifications
- Maximum Flow Pulsating 462 gph
- Maximum Flow Continuous 24.2 gpm
- Maximum Pressure 150 psi
Features
- Solid, robust, one-piece machined construction
- Flanged connection
- Leak-free design - no glue, no seals
- Anti-siphon function
- Molded Noryl top with integral hardware locking
- Composite PTFE/EPDM diaphragm
- 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 degrees Fahrenheit
