Mueller Industries A18737-350 Pressure Relief Valve 350 PSIG 29.5# Discharge

The Mueller Industries A18737-350 Pressure Relief Valve is used to protect pressurized systems from excessive internal pressure buildup. It is installed on refrigerant or fluid circuits, where it automatically opens when pressure exceeds the 350 PSIG 29.5# discharge rating, releasing excess pressure to a safe outlet point in HVAC systems. It safeguard compressors, coils, and piping from overpressure conditions that can occur during abnormal operation or system faults. This normal operating pressure is restored, ensuring continued system protection, operational stability, and equipment in commercial and industrial refrigeration and cooling applications.