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Sizes
1/4 to 1/2 inch
Set Pressure
10-150 psi
Max Flow
up to 300 GPH
Body
Plastic or metal

Griffco M-Series back pressure valves hold a steady, adjustable pressure on a pump's discharge line and stop siphoning. Sizes run 1/4 to 1/2 inch, in PVC, CPVC, polypropylene, PTFE, PVDF, 316 SS, Alloy 20, or Hastelloy C bodies.

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Free shipping over $500
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Starting at:

$209.00

Availability
In stock
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
1/4 to 1/2 inch
Set Pressure
10-150 psi
Max Flow
up to 300 GPH
Body
Plastic or metal
All possible part numbers

Product details

Headline

M-Series Low-Flow Back Pressure Valves

Griffco M-Series diaphragm low-flow 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.

Features & benefits

Valve Features
Construction & Materials
  • Solid, robust, machined construction
  • Molded Noryl top with integral hardware locking
  • 316L SS metal valve and top options
  • Molded PTFE/EPDM diaphragm
  • Wide range of valve materials
Technical Specifications
ParameterValue
Pressure RatingUp to 350 psi (24 bar)
Temperature RangeUp to 300°F (149°C)
Valve Sizes1/4" to 1/2" (DN 8 to DN 15)
Pressure Options4 spring ratings
Connection Options
  • Flanged connections
  • Union connections
  • Threaded connections
  • Socket connections
Safety Features
  • Anti-siphon function
  • Tamper-resistant adjustment screw
  • Multiple diaphragm material options
Key Benefits
  • High reliability at affordable price
  • Long diaphragm life
  • Factory or field settable
  • Flexible installation options