This 20mm (3/4") Watts adjustable pressure relief valve opens when water pressure rises above its selected setting. A calibrated spring adjustment sets the relief pressure. Water discharged through the valve reduces pressure in the connected system, with the selected setting matched to the equipment and pipework requiring protection.
Bronze body; stainless steel spring; Buna-N disc and O-ring.
Pressure: Adjustment approximately 345-1206kPa (50-175psi); maximum pressure 2067kPa (300psi). Temperature: Maximum temperature 82°C.
Provide access for operation or servicing.
Connections: 20mm (3/4") nominal connection.