Flow rate measuring and control device for diamond valve

The utility model discloses a flow rate measuring and control device for a diamond valve. The flow rate measuring and control device comprises a valve body and a valve plate and is characterized by also comprising a wind differential pressure transducer, a valve front pipeline and a valve back pipeline, wherein a positive pressure interface of the wind differential pressure transducer is connected with an inner cavity of the valve front pipeline through a positive pressure connecting pipe, a negative pressure interface of the wind differential pressure transducer is connected with an inner cavity of the valve back pipeline through a negative pressure connecting pipe, the valve front pipeline is arranged at the front end of the valve body, and the valve back pipeline is arranged at the back end of the valve body. A flow passage formed by the valve plate and the valve body is in a square shape, two top points of the square shape are positioned on the highest point and the lowest point in the opening and closing