M-Series

Griffco M-Series back pressure valves and 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-contactmaterials:

• PVC
• CPVC
• PP
• PVDF
• PTFE
• Halar®
• SS 316L
• Alloy 20
• Hastelloy® C

Available sizes:

1/4″ up to 1/2″ or DN 8 up to DN 15

Features and benefits:

• High reliability at an affordable price
• Anti-syphon function
• Solid, robust, (machined) construction
• Wide range of available materials
• Flanged-, union-, threaded- and glue/weld options
• Injection moulded Noryl top with integrated pressure lock
• SS316 metall-top option
• Moulded PTFE / EPDM-diaphragm
• Several materialoptions for diaphragms
• Long lifetime diaphragm
• Adjustable up to 24 bar
• 4 optional pressure ranges (springs)
• Valve sizes from 1/4″ to 1/2″ or DN 8 to DN 15
• Tamper proof set screw
• High temperature option up to 150 ° C
• factory-set to desired pressure or field settable