1. Handwheel, handle and transmission mechanism are not allowed to be used for lifting, and collision is strictly prohibited. 2, the double gate valve should be installed vertically (that is, the valve stem is in a vertical position, and the handwheel is at the top). 3, the gate valve with bypass valve should be opened before opening the bypass valve (to balance the pressure difference between the inlet and outlet and reduce the opening force). 4. The gate valve with transmission mechanism shall be installed according to the provisions of the product instruction manual. 5, if the valve is often used, lubricate at least once a month.

1, small flow resistance. The medium channel inside the valve body is straight through, the medium flows in a straight line, and the flow resistance is small.

2, less effort when opening and closing. It is compared with the globe valve, because whether it is open or closed, the direction of the ram movement is perpendicular to the direction of the medium flow.

3, high height, long opening and closing time. The opening and closing stroke of the gate is large, and the fall is carried out by the screw.

4, water hammer phenomenon is not easy to produce. The reason is the long shutdown time.

5, the medium can flow to either side in any direction, easy to install. Both sides of the gate valve channel are symmetrical.

6, the structure length (the distance between the two connected end faces of the shell) is small.

7, simple shape, short structure length, good manufacturing process, wide range of application.

8, compact structure, good valve rigidity, smooth channel, flow resistance number is small, sealing surface is made of stainless steel and carbide, long service life, PTFE packing. Reliable seal. The operation is light and flexible.

Product range

One of the most commonly used cut-off valves, mainly used to connect or cut off the medium in the pipeline, not suitable for regulating the medium flow rate. The cast steel gate valve is suitable for a wide range of pressure, temperature and caliber, especially for medium and large caliber pipelines. Nominal size DN15~DN800, nominal pressure 1.6MPa~20.0MPa, sealing surface using asbestos graphite or flexible graphite, operating temperature ≤570℃, manual operation, gear drive, electric, pneumatic, etc., suitable for water, steam, oil medium pipeline.