AIR VALVE FOR DIRECT-CURRENT VARIABLE-FREQUENCY COMPRESSOR UNIT

摘要

Disclosed is an air valve for a direct-current variable-frequency compressor unit, the air valve comprising an air valve main body (1), an air cavity (2) is provided in one side of the air valve main body (1), a first main air hole (3) is provided in one end of the air cavity (2), a valve seat (4) is installed on the other side of the air valve main body (1), a second main air hole (5) is provided in one end of the valve seat (4), one end of the valve seat (4) is fixedly provided with a fixing ring (12), the fixing ring (12) is embedded into the air valve main body (1), the air valve main body (1) is in threaded connection with the fixing ring (12), the air valve main body (1) comprises an air inlet cavity (6) and an air outlet cavity (7), and the air inlet cavity (6) and the air outlet cavity (7) are equal in size. The air valve prevents a valve plate from being broken when a compressor works for a long time, prolonging the service life of the compressor.