Available Sizes
1/2″ to 1″ or DN 15 to DN 25
G-Series Solid PTFE Flanged
Features
- Solid, robust, one-piece machined construction
- Complete PTFE valve body
- Flanged connection
- Leak-free design – no glue, no seals
- Anti-siphon function
- Molded Noryl top with integral hardware locking
- Composite PTFE/EPDM diaphragm
- Adjustable up to 150 psi (10 bar)
- Valve sizes from 1/2″ to 1″ or DN 15 to DN 25
- Tamper-resistant adjustment screw
- High-temperature option up to 300°F (149°C)
Griffco Benefits
- High reliability at an affordable price
- Long diaphragm life
- Multiple diaphragm material options
- Factory or field settable

Wetted Materials
PTFE
| SIZE | MAXIMUM FLOW PULSATING | MAXIMUM FLOW CONTINUOUS | MAXIMUM PRESSURE |
Filters Sort results
Reset Apply
SKU | Product | Description | Add to Project |
|---|---|---|---|
PVC – 50 psi Spring – Viton..Pressure Set: 20 psi | |||
PVC – 50 psi Spring – Viton – Union Connection – Viton O-ring..Pressure Set: 20 psi | |||
PVC – 250 psi Spring | |||
PVC – Flanged – 250 psi Spring (Max Pressure 150 psi) | |||
PVC – 250 psi Spring – Hypalon | |||
PVC – 250 psi Spring – Socket | |||
PVC – 250 psi Spring – Socket – Metal Adj Scres | |||
PVC – 250 psi Spring – PTFE/Viton | |||
PVC – 250 psi Spring – Union Connection – Viton O-ring | |||
PVC – 250 psi Spring – Union Connection – EPDM O-ring |
| TITLE | DESCRIPTION | DATE MODIFIED | DOWNLOAD |



