Check valve assembly

A check valve assembly configured to be mounted at the interface between a compressor unit or a vacuum pump and an external network, for preventing a fluid flow in the upstream direction, the check valve assembly comprising:

• a valve body adapted to receive a valve plate, said valve plate being adapted to pivot between a first open position in which fluid can flow through said check valve and a second closed position in which fluid cannot flow through said check valve;
• said valve body being adapted to be connected to a discharge port of a compressor unit or to the intake port of a vacuum pump through a first fluid conduit;
• a second fluid conduit attachable to the valve body, said second fluid conduit being adapted to be connected to an external network;
• a shaft and at least one bearing for connecting the valve plate to the valve body;
• whereby
• the valve plate comprises an elongated area having a hollow tube through which the shaft is inserted for rotatably mounting said valve plate in the valve body wherein said at least one bearing is positioned on said shaft and within said hollow tube and wherein said valve body further comprises a seat for receiving said valve plate, said seat having a lower part, in the vicinity where said elongated area is mounted, and a higher part, on the opposite side from where said elongated area is mounted.