Griffco High-Pressure Relief Valves are designed to protect chemical feed systems from over pressure damage caused by defective equipment or a blockage in the chemical feed chemical feed line. Robust construction ensures reliability in the rigorous service of municipal and industrial applications. Also known as high-pressure pump bypass valves.
Available Sizes
1/4″, 3/8″, 1/2″, 3/4″ & 1″ or DN 8, DN 10, DN 15, DN 20 & DN 25
High Pressure
Features
- Pressure range 350 to 4000 psi (24 to 275 bar)
- 2-port, 90° configuration
- PVDF piston
- Solid, robust, machined construction
- Threaded and socket connection options
- 316 SS top standard
- Composite PTFE/EPDM diaphragm
- Valve sizes from 1/4″ to 1″ or DN 8 to DN 25
- 4 optional pressure ratings (springs)
- Tamper-resistant adjustment screw
- High-temperature option up to 300°F (149°C)
Griffco Benefits
- High reliability at an affordable price
- Compact size for OEM applications
- Multiple diaphragm material options
- Long diaphragm life
- Factory or field settable
Wetted Materials
316 SS
Alloy 20
Hastelloy® C
| SIZE | MAXIMUM FLOW PULSATING | MAXIMUM FLOW CONTINUOUS | MAXIMUM PRESSURE |
Filters Sort results
Reset Apply
Image | Product | Description | Add to Project |
|---|---|---|---|
 111-802-B | 316SS – BSP | | |
| 111-806-B | Hast C – BSPT | | |
 PRHP025SB | 316SS – BSPT | | |
| PRHP025S | 316SS | | |
| PRHP025CTV | Hast C – PTFE/Viton Diaphragm | | |
| PRHP025CS | Hast C – Socket | | |
| PRHP025CB | Hast C – BSPT | | |
| PRHP025C | Hast C | | |
| PRHP025A | A20 | | |
| 111-804-B | Hast C – BSPT | |
| TITLE | DESCRIPTION | DATE MODIFIED | DOWNLOAD |
