always verify your specific unit's parts list for the 222771 number

specifically calibrated for natural gas systems

ensuring consistent performance across the full operating envelope

A 3-element design allows for more efficient heat distribution across the airflow and provides a level of redundancy

the system should never be left running without a functional high pressure control

Sporlan 040305-05 Valve 318518-761 always verify your specific unit'sMaintain precise suction pressure and prevent evaporator freeze ups with the Sporlan 040305 05 A7 A Automatic Expansion Valve (AXV). This constant pressure valve is a standard for technicians servicing small capacity systems where maintaining a stable evaporating pressure is critical. Featuring 3 8" ODF solder connections, this valve is built with a durable brass body, stainless steel internal springs, and a 100 mesh inlet strainer to protect the