MA3 Pressure Operated Relief Valve (PORV)

MA3 Pressure Operated Relief Valve

The Model MA3 Pressure Operated Relief Valve (PORV) is used in Minimax Fire Protection Deluge and Preaction Systems. Once tripped, it maintains a positive vent to prevent the deluge valve from automatically resetting prematurely. the device is automatically reset when the pressure is removed from the control diaphragm. The device is designed to trip when the trip port is pressurized with water from the intermediate chamber of the control valve, or when the water in the inlet is drained from the prime chamber of the control valve.

Technical Documents

Technical Data Sheets

Warning: Cancer and Reproductive Harm. www.P65Warnings.ca.gov