Reliable Sealing: Integrated NBR (Buna-N) elastomers provide tight shut-off for air and water applications

System Protection: Acts as a primary safety check to prevent compressor damage from excessive heat

Tamper-Resistant Design: The blank faceplate without setpoint windows or adjustment access helps maintain system calibration by preventing unauthorized changes

This genuine OEM replacement part is engineered to meet exact factory tolerances

The York S1-024-35660-000 Control

Mueller Industries AH15502 Valve R-134A Reliable Sealing: Integrated NBR (Buna-N)The Mueller Industries AH15502 is a professional grade refrigerant pressure relief valve engineered for critical overpressure protection in commercial HVACR systems. Specifically designed as a direct replacement for 5231 400, this atmospheric relief valve features a 400 PSI set pressure. The construction utilizes high tensile brass for corrosion resistance and reliable seating under high pressure conditions. With a 3 8 NPTFE inlet and a 3 8 flare