Rheem water Heater AP12574G-1 Temperature & Pressure Relief Valve

The Rheem water Heater AP12574G-1 Temperature and Pressure Relief Valve is a control component used in light commercial and hot water systems to regulate internal tank conditions. It automatically discharges water when the temperature or pressure inside a water heater exceeds safe limit. It is installed on storage-type water heaters, it connects directly to the tank and a discharge line that routes safely to a drain in HVAC systems applications. It is found in plumbing and connections, where it serves as a final protective component within the heating system. Its role within the appliance is to maintain safe operating conditions by relieving excess thermal and hydraulic stress.