Previous image






Pictures may not be actual SKU
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.
24/7 Sales support
Free shipping over $500
Lifetime tech support
Starting at:
$209.00
Availability
In stock
Lead time
7 days
Ships from
PA - GA - FL - OH - TX - OR
Questions? Urgent request?
Call or text 24/7: +1 (484) 544-0506
Contact us
Sizes
1/4 to 1/2 inch
Set Pressure
10-150 psi
Max Flow
up to 300 GPH
Body
Plastic or metal
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
| Parameter | Value |
|---|---|
| Pressure Rating | Up to 350 psi (24 bar) |
| Temperature Range | Up to 300°F (149°C) |
| Valve Sizes | 1/4" to 1/2" (DN 8 to DN 15) |
| Pressure Options | 4 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