Griffco Valve, PRM038CP2, 3/8" M-Series Low-Flow Pressure Relief Valve CPVC, 250 Psi Spring, PTFE/EPDM Diaphragm, NPT Connection
Features:
- Solid, robust, machined construction
- Threaded Connection
- Molded Noryl top with integral hardware locking
- Molded PTFE/EPDM Diaphragm
- Adjustable up to 250 psi
- 250 psi pressure rating (spring)
- Valve size 3/8"
- Valve body material - CPVC
- Tamper-resistant adjustment screw
- High reliability at affordable price
- Long diaphragm life
- Factory or field settable
- High Reliability / Low Cost
- Compact Size for OEM Applications
- Robust, Machined Body Construction
Griffco M-Series diaphragm pressure relief valve is designed to protect chemical feed systems from over pressure damage caused by defective equipment or a blockage in the chemical feed line. Robust construction ensures reliability in the rigorous service of municipal and industrial applications.
Operation
Griffco diaphragm pressure relief valve operate when the pressure in the chemical system exceeds the preset pressure of the valve. The diaphragm is held against the valve seat by an internal spring. When the preset pressure is exceeded the diaphragm is forced up and the chemical flows out the relief port, back to the chemical tank or to the suction side of the pump.
The valve is pre-set at 50 psi, however they are field adjustable from 10 - 250 psi, via the adjustment screw. The relief valve should be set approximately 15 psi higher than the system pressure. Installation should be made as close to the pump as possible, without any valves or accessories between the relief valve and the pump.
For more information, please see 
Data Sheet and User Manual
