The hydraulic valve is mainly applied to hydropower medium containing sediment water temperature -28~80 hydropower station water pipe as the opening and closing device can only be fully open and fully closed, can not be adjusted, with the advantages of small flow resistance, and closed flexible, high safety and convenient operation, etc..
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.

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Double seal ring piston sealing ring structure, upstream and downstream sealing seal repair. A sealing ring is arranged at the upper and lower reaches of the annular valve core, and a sealing ring is arranged in the upper and lower reaches of the valve core, and the piston is pushed through a hydraulic system to realize sealing. Normal close the valve, the downstream sealing off, smooth water, and in the repair or replacement of downstream work sealing, upstream maintenance sealed off by mechanical locking device.
The operating mechanism is a hydraulic operating mechanism (straight cylinder actuator), straight cylinder relay fork mechanism for piston, is provided with a manual locking device, the main valve position signal indicating device and manual locking input or dial signal indicating device. The manual locking device can withstand the maximum operating pressure of the relay device and avoid the valve malfunction.
Hydraulic valve (valve) upstream through the valve and the water inlet pipe spool before welding, the downstream expansion joint is connected with the turbine shell, in order to facilitate the installation and maintenance of hydraulic valve (main valve), expansion joint adjustment.
The hydraulic ball valve (main valve) is provided with a bypass production pipeline, which aims to open the main valve before the valve upstream and downstream pressure balance, reduce the main valve opening and closing torque. Bypass valve for - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -.
A wedge type gate valve is arranged at the top of the expansion joint, and when the pressure pipe is filled with water to the downstream water turbine, the valve is completely opened, and the air is excluded from the water surface of the DN80. In the valve at the bottom and two telescopic parts are provided with the DN80mm PN4.0MPa manual valve, used in the repair of turbine and fully exclude dirt inside the valve body cavity and the volute and water.

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1、技术制造按 GB12237 的规定
2、检验和试验按 JB/T9092 的规定 
3、法兰尺寸按 JB79 的规定
4、结构长度按 GB12221的规定