Description
The Mueller Industries A15504-450 1/2″ Pressure Relief Valve NPT X 5/8″Flare 450 PSI relieves excess system pressure by opening at a predetermined pressure setting and releasing refrigerant safely. Internal spring force balances against system pressure until the calibrated limit is reached, allowing the valve to open and discharge excess pressure before automatically resealing. Positioned within HVAC systems, it communicates with refrigeration piping, pressure-containing components, and safety controls to protect the sealed circuit from overpressure conditions. Its operations support controlled pressure relief, component protection, and proper operating conditions.
