liquid-operated flange butterfly valve

DN50-1200
The hydraulic system outputs pressure oil through a bidirectional gear pump, which is controlled by an oil circuit integrated block and sent to the oil cylinder to drive the piston to make reciprocating motion. Then, the crank mechanism drives the valve shaft and butterfly plate to rotate 0-90 °, thereby achieving the opening, closing, and opening adjustment of the valve, and completing the on/off and flow control of the medium in the pipeline