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Manual
Sizes
1/2 to 2 inch
Set Pressure
10-150 psi
Max Flow
up to 5,157 GPH
Body
Plastic or metal

Griffco High Flow back pressure valves hold a steady, adjustable pressure on a pump's discharge line and stop siphoning. Sizes run 1/2 to 2 inch, in PVC, CPVC, polypropylene, PTFE, PVDF, 316 SS, Alloy 20, or Hastelloy C bodies.

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Free shipping over $500
Lifetime tech support
Starting at:

$533.00

Availability
Available to order
Lead time
7 days
Ships from
US PA - GA - FL - OH - TX - OR
Questions? Urgent request?
Call or text 24/7: +1 (484) 544-0506
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Sizes
1/2 to 2 inch
Set Pressure
10-150 psi
Max Flow
up to 5,157 GPH
Body
Plastic or metal
All possible part numbers

Product details

Headline

High-Flow Back Pressure Valves

Griffco 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.

Features & benefits

Technical Specifications
ParameterSpecification
Pressure RatingUp to 250 psi (17 bar)
Temperature RangeUp to 300°F (149°C)
Valve Sizes1/2" to 2" (DN 15 to DN 50)
Pressure Options4 spring ratings available
Construction Features
  • Solid, robust machined design
  • Molded Noryl top with integral hardware locking
  • 316L SS metal valve and top options
  • Molded PTFE/EPDM diaphragm
  • Tamper-resistant adjustment screw
Connection Options
  • Flanged connections
  • Union fittings
  • Threaded ports
  • Socket connections
Performance Features
  • Anti-siphon functionality
  • High-temperature capability
  • Field adjustable pressure settings
  • Multiple pressure rating options
Griffco Benefits
  • High reliability at affordable price
  • Extended diaphragm service life
  • Wide range of valve materials
  • Multiple diaphragm material options
  • Factory or field settable configurations