Description
The Trane VAL3518 Discharge Service Valve regulates refrigerant discharge flow and provides a controlled access point for service procedures within HVAC systems. It operates through a manually actuated valve body that opens or restricts the high-pressure refrigerant line, allowing technicians to manage flow during system testing, charging, or maintenance. Built for discharge-side placement, it is brazed or secured into the refrigerant piping near the compressor outlet, where it connects with service equipment when required. Its operation supports controlled refrigerant handling, contributes to maintaining circuit stability during servicing.









