Griffco BPMP-Series diaphragm 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. Also known as medium-pressure anti-siphon valves.
Available Sizes
1/4″ to 1″ or DN 8 to DN 25
Medium Pressure
Features
- Solid, robust, single-piece machined construction
- Anti-siphon function
- Available in 316 SS, A20, Hast. C and Titanium
- Adjustable up to 800 psi (55 bar)
- Valve sizes from 1/4″ to 1″ or DN 8 to DN 25
- Tamper-resistant adjustment screw
Griffco Benefits
- High reliability at an affordable price
- Long diaphragm life
- Multiple diaphragm material options

Wetted Materials
316 SS
A20
Hastelloy® C
Titanium
SIZE | MAXIMUM FLOW PULSATING | MAXIMUM FLOW CONTINUOUS | MAXIMUM PRESSURE |
TITLE | DESCRIPTION | DATE MODIFIED | DOWNLOAD |
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SKU | Product | Description | Add to Project |
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M-Series 316SS – 100 – 800 Pressure Range – 316SS Top – #150 Flanges | |||
M-Series 316SS – 100 – 800 Pressure Range – 316SS Top – BSP Threads | |||
M-Series 316SS – 100 – 800 Pressure Range – 316SS Top – 90 Degree | |||
M-Series 316SS – 100 – 800 Pressure Range – 316SS Top | |||
M-Series – Hast C – 100 – 800 Pressure Range – 316SS Top – 600# Flanges | |||
M-Series – Hast C – 100 – 800 Pressure Range – 316SS Top – 300# Flanges | |||
M-Series – Hast C – 100 – 800 Pressure Range – 316SS Top | |||
G-Series 316SS – 100 – 800 Pressure Range – 316SS Top | |||
M-Series 316SS – 100 – 800 Pressure Range – 316SS Top – #300 Flanges (Max rating 600 psi) | |||
M-Series 316SS – 100 – 800 Pressure Range – 316SS Top – #600 Flanges |