D747H/X-2.5 type hydraulic double eccentric butterfly valve with a hydraulic device to complete the opening and closing movement by mechanical actuator driver disc. Open and close the valve disc position limit switch signals can be displayed through. The valve can be a single remote control, you can focus on more than one remote control, but also signals can be input into the computer program control. You can manually operate under extraordinary circumstances. The valve can be installed anywhere, no direction.