Hayward® RPV Series Diaphragm Pressure Relief Valves

The all-thermoplastic diaphragm pressure relief valve is for protecting against over-pressure in chemical feed systems. When the preset pressure is exceeded, the diaphragm is forced up, and the chemical flows out of the relief port, back to the chemical tank, or the suction side of the pump. All valves are preset at 50 psi; however, they are field adjustable via the adjustment screw. Installation should always be made as close to the pump as possible, without any valves or accessories between the relief valve and pump. Typical applications include chemical dosing, transfer, processing, and chlorination systems.

PVC or CPVC body
PTFE/EPDM diaphragm
304 stainless steel bolting
FNPT threads
Should be set approximately 15 psi higher than the system pressure
Adjustment screw with slot
Spring is rated for 10 to 150 psi & is preset to 50 psi
Maximum pressure: 250 psi @ 70°F (17.2 Bar @ 21°C)

Item #	Description	Catalog Pg.	Price
Item 22487	1/4" RPV Series PVC Diaphragm Pressure Relief Valve 299.12/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	299.12/Each Drop Ship
Item 22488	3/8" RPV Series PVC Diaphragm Pressure Relief Valve 299.12/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	299.12/Each Drop Ship
Item 22489	1/2" RPV Series PVC Diaphragm Pressure Relief Valve 324.38/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	324.38/Each Drop Ship
Item 22490	3/4" RPV Series PVC Diaphragm Pressure Relief Valve 626.29/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	626.29/Each Drop Ship
Item 22491	1" RPV Series PVC Diaphragm Pressure Relief Valve 866.18/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	866.18/Each Drop Ship
Item 22492	1-1/2" RPV Series PVC Diaphragm Pressure Relief Valve 1651.09/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	1651.09/Each Drop Ship
Item 22493	2" RPV Series PVC Diaphragm Pressure Relief Valve 1868.49/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	1868.49/Each Drop Ship
Item 22494	1/4" RPV Series CPVC Diaphragm Pressure Relief Valve 425.41/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	425.41/Each Drop Ship
Item 22495	3/8" RPV Series CPVC Diaphragm Pressure Relief Valve 425.41/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	425.41/Each Drop Ship
Item 22496	1/2" RPV Series CPVC Diaphragm Pressure Relief Valve 699.46/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	699.46/Each Drop Ship
Item 22497	3/4" RPV Series CPVC Diaphragm Pressure Relief Valve 808.97/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	808.97/Each Drop Ship
Item 22498	1" RPV Series CPVC Diaphragm Pressure Relief Valve 1056.43/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	1056.43/Each Drop Ship
Item 22499	1-1/2" RPV Series CPVC Diaphragm Pressure Relief Valve 2493.05/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	2493.05/Each Drop Ship
Item 22500	2" RPV Series CPVC Diaphragm Pressure Relief Valve 2750.51/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-515	2750.51/Each Drop Ship