YORK 022-09779-000 Liquid Stop Valve

022-09779-000 is the original part number of York (a brand under Johnson Controls). The standard description is "Liquid Stop Valve", a liquid pipeline shut-off valve / liquid pipeline shut-off valve, classified under the "Valves" category. In the domestic York common parts list, it is listed as "Angle Valve 1-5/8″", and it is a commonly used spare part for water-cooled screw machine piping systems such as YEWS (R22 units).
Material and Specifications: The valve body is precision cast from high-strength brass, corrosion-resistant and long-lasting; the valve stem is made of stainless steel, suitable for harsh conditions; the valve seat is sealed with Buna-N (nitrile rubber), ensuring zero leakage. The maximum working pressure is 350 psig, the working temperature range is -65°F to +250°F (approximately -54 to 121°C), compatible with various refrigerants such as R-134a, R-410A, and R-407C. The weight is approximately 3.15 lb (1.43 kg), and some channels mark it as 1.36 kg.
Function: Installed on the refrigerant liquid pipeline of the unit, when repairing or replacing components such as dryers, filters, and expansion valves, this valve can be closed to isolate the liquid pipeline section, without evacuating the system refrigerant, significantly improving maintenance efficiency and reducing refrigerant loss. In Radwell's product description, it is also labeled as the "ANGLE (Isolation)" type, indicating an angle structure.