Check valve for gas compressor

The utility model discloses a check valve for a gas compressor, which belongs to the technical field of compressors and comprises two shells, a gasket is arranged between the two shells, valve cores are arranged in the shells, a connecting plate is arranged between the two shells, the connecting plate is connected with the shells through first bolts, and the first bolts are connected with the connecting plate through second bolts. A nameplate is arranged on one side of the front end of each shell, flanges are arranged on the two sides of each shell, the two shells are in butt joint through the studs, the gasket is placed between the two shells, the two shells are connected through the connecting plates and the first bolts, then the flanges are in butt joint with the two ends of the shells, and the two shells are connected through the second bolts. The flanges are arranged on the shell, the wound gaskets are placed between the flanges and the shell, then the studs penetrate through the two flanges, the nuts ar