High-Pressure Backpressure-, and pressure relief valves

Griffco diaphragm high-pressure back pressure valves and diaphragm high-pressure pressure relief valves are designed to enhance the performance of chemical (dosing) pump systems by applying a continuous back pressure to the chemical feed pump, while also acting as an anti-syphon valve. The robust construction ensures reliability in heavy-duty industrial applications, among others.

Liquid contact materials:

• SS 316L
• Alloy 20
• Hastelloy® C

Available sizes:

1/4″, 3/8″, 1/2″, 3/4″ & 1″ or DN 8, DN 10, DN 15, DN 20 & DN 25

Features and benefits

• Pressurerange from 24 upto 275 bar
• High reliability at an affordable price
• Compact size for OEM applications
• Configuration with 2 ports, 90 °
• PVDF-plunger
• Solid, robust, (machined) construction
• Threaded-, or socket-connection options
• SS316 top; standard
• Moulded PTFE / EPDM-diaphragm
• Several materialoptions for diaphragms
• Long lifetime diaphragm
• Connections from 1/4“ up to 1” or DN 8 up to DN 25
• 4 optional pressure ranges (springs)
• Tamper proof set screw
• High temperature option up to 150 ° C
• factory-set to desired pressure or field settable