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Pressure & Thermal Relief Valves

PRESSURE RELIEF VALVES
The pressure relief valve is used to release pressure when a PSI threshold is exceeded. Pressure relief vavles are usually installed on the high pressure side of a pump and set 300-400 PSI above the unloader setting, protecting against unloader failure.

Name	Part No.	Description	Quantity	Price	Order
Pressure Relief Valve	ADI-114	General Pump 1/4" Male Inlet 6 GPM at 6000 PSI 195° F *Outlet: Side with 1/4" hose barb relief		$14.27
Pressure Relief Valve	ADI-115	General Pump 3/8" Male Inlet 6 GPM at 6000 PSI 195° F *Outlet: Side with 1/4" hose barb relief		$14.27
Pressure Relief Valve	ADI-116	General Pump 1/2" Male Inlet 6 GPM at 6000 PSI 195° F *Outlet: Side with 1/4" hose barb relief		$14.27
Pressure Relief Valve	ADI-122	Giant 1/4" Male Inlet 1200 PSI maximum pressure 10 GPM flow rate 160° F Adjustable Made in America		$12.95
Pressure Relief Valve	ADI-123	Giant 3/8" Male Inlet 2400 PSI maximum pressure 10 GPM flow rate 160° F Adjustable Made in America Giant Part # 22531A		$12.95
Pressure Relief Valve	ADI-124	Giant Part # 22532A 3/8" Male Inlet 3600 PSI maximum pressure 10 GPM flow rate 160° F Adjustable *Made in America		$13.95
Pressure Relief Valve	ADI-125	Giant Giant Part # 22533A 3/8" Male Inlet 5000 PSI maximum pressure 10 GPM flow rate 160° F Adjustable *Made in America		$13.95
Pressure Relief Valve	ADI-126	General Pump 3/8" Male Inlet 6 GPM flow rate 6000 PSI maximum pressure Materials: Brass, SS, Thermoplastic, Buna-N One model fits all pressures - no springs to change Less "whistling" and chatter than competing brands Highly accurate over full range of pressures Fits any brand pump *Designed and made in the USA		$15.95
Pressure Relief Valve	ADI-1470	Giant 10 GPM flow rate 3600 PSI max. pressure 1/4" M inlet 160° F Adjustable Made in America *Giant Part # 22565A		$15.95

THERMAL RELIEF VALVES
The thermal relief valve is used to protect the pump from overheating (pump water seals damage). If the unloader is in bypass for extended amounts of time the water temperature increases. Once the thermal relief valve rated temperature is exceeded, circulating water is discharged and new cooler water from the water inlet is allowed in. Thermal relief valves are a cheap way to protect a pump against thermal damage.

Name	Part No.	Description	Quantity	Price	Order
Thermal Relief Valve	AWA-43	1/2" Male Inlet 145° F 25 GPM flow rate 125 PSI maximum pressure Constructed of brass Automatically seats during unloader/regulator pressure spikes to prevent fluid bleed		$36.86
Thermal Relief Valve	AWA-44	3/8" Male Inlet 165° F 25 GPM flow rate 125 PSI maximum pressure Constructed of brass Automatically seats during unloader/regulator pressure spikes to prevent fluid bleed		$45.31
Thermal Relief Valve	AWA-45	1/2" Male Inlet 165° F 25 GPM flow rate 125 PSI maximum pressure Constructed of brass Automatically seats during unloader/regulator pressure spikes to prevent fluid bleed		$45.31
Thermal Relief Valve	AWA-47	1/4" M x 1/2" Plastic Hose Barb 145° F 125 PSI maximum pressure Protects pump from overheating Smallest thermal valve on the market Most durable and repeatable design available Cap design allows flow to be diverted as desired Can be mounted in pump manifold, inlet water supply, or bypass loop plumbing		$10.00
Thermal Relief Valve	AWA-48	3/8" M x 1/2" Plastic Hose Barb 145° F 125 PSI maximum pressure Protects pump from overheating Smallest thermal valve on the market Most durable and repeatable design available Cap design allows flow to be diverted as desired Can be mounted in pump manifold, inlet water supply, or bypass loop plumbing		$10.00
Thermal Relief Valve	AWA-49	1/2" M x 1/2" Plastic Hose Barb 145° F 125 PSI maximum pressure Protects pump from overheating Smallest thermal valve on the market Most durable and repeatable design available Cap design allows flow to be diverted as desired Can be mounted in pump manifold, inlet water supply, or bypass loop plumbing		$10.00
Thermal Relief Valve	AWA-50	3/8" M x 3/8" Brass Hose Barb 190° F Protects pump from overheating Smallest thermal valve on the market Most durable and repeatable design available Cap design allows flow to be diverted as desired *Can be mounted in pump manifold, inlet water supply, or bypass loop plumbing		$10.00
Thermal Relief Valve	AWA-51	1/2" M x 1/2" Brass Hose Barb 190° F Protects pump from overheating Smallest thermal valve on the market Most durable and repeatable design available Cap design allows flow to be diverted as desired *Can be mounted in pump manifold, inlet water supply, or bypass loop plumbing		$10.00