The Mueller Industries AH15514 Angle Pressure Relief Valve is a high-pressure HVAC valve designed with a 1/2-inch NPTFE connection and 5/8-inch flare fitting, rated up to 400 PSI. It operates by relieving excess system pressure when it exceeds a safe preset level, helping protect equipment and components from pressure-related damage. Commonly used in refrigeration and air-conditioning systems, including condensing units, compressors, and refrigerant piping, this valve supports reliable pressure management and system safety. Its durable construction, secure connections, and efficient pressure relief make it a practical choice for HVAC maintenance, repairs, and installations.
