Parker-Sporlan 274037-11 Check Valve 1/2" ODF CV4P-6FS-6FS Copper Spring Loaded

The Parker-Sporlan 274037-11 Copper Spring Loaded Check Valve 1/2" ODF, CV4P-6FS-6FS is a one-way refrigerant control component that prevents reverse flow within liquid and suction line circuits. It operates using a spring-loaded internal disc that opens when forward pressure is applied and closes automatically when flow reverses, ensuring controlled directional refrigerant movement in HVAC systems. Installed in refrigeration and air-conditioning piping systems, it is used in liquid line or bypass configurations where backflow protection is required to maintain system stability, protect compressors, and support consistent operating conditions in commercial and residential applications.