This HVAC expansion valve is built to handle the specific pressure-temperature relationship of R-22 refrigerant

allowing technicians to position the damper manually for system testing or emergency operation without electrical power

when paired with the appropriate high-temperature valve linkage

Built for the rigors of field use

While the 0556003 is built for durability

Johnson Controls V47AB-3 Regulating Valve Els PW 29614 This HVAC expansion valve isThe Johnson Controls V47AB 3 is a temperature actuated water regulating valve specifically engineered for heating applications where precise temperature modulation is critical. This direct acting modulating valve features a 1 2" NPT connection and is designed to open on a temperature increase at the bulb, making it an essential component for maintaining optimal thermal balance in heat exchangers, large scale air compressors, and hydraulic systems.