Carrier 30RA502112 Expansion Valve 328140-751 Designed specifically for industrial HVACR

Designed specifically for industrial HVACR applications

for smooth ignition and stable combustion

Technicians can rely on its sensitive diaphragm and snap-action switch for consistent repeatability in critical HVACR applications

The Watts 0382456

creating the negative pressure required to clear flue gases and engage the pressure switch

Carrier 30RA502112 Expansion Valve 328140-751 Designed specifically for industrial HVACRThe Carrier 30RA502112 Expansion Valve is a critical thermostatic metering device engineered for precise refrigerant control in AquaSnap 30RAP and 30RB air cooled chillers. As the direct replacement for EA02ZF512, this OEM component ensures the pressure drop across the refrigerant liquid line is maintained to prevent liquid slugging and compressor damage. Designed for R 410A refrigeration systems, the 30RA502112 utilizes a sensing bulb and external