Zhejiang Shunlin Valve Co., Ltd. is China Flange Valve Manufacturers, we are design and manufactures API standard valves (globe valves, gate valves, check valves, ball valves).
The opening and closing part of the high-pressure gate valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted and saved. The movement method of the valve stem includes the lifting rod type - the valve stem is lifted and lowered, and the hand wheel does not rise and fall, and there is also lifting and rotating rod type - the hand wheel and the valve stem rotate and rise together, and the nut is set on the valve body.
What is a high-pressure gate valve? What are its characteristics?
Product features of high-pressure gate valve
1. The middle flange bolt connection is selected, and the two ends of the branch pipe are flange connection structures.
2. The sealing surface of the valve seat is made of surfacing welded iron-based chromium-nickel stainless steel, which has good wear resistance and scratch resistance.
3. The surface of the valve stem is treated with corrosion-resistant nitriding, which has excellent corrosion resistance and scratch resistance.
4. The closing and opening of the valve are controlled by an electric device installed on the valve cover. The electric equipment is equipped with a special motor for valves, a gearbox, a torque control mechanism, a stroke control mechanism, an on-site operation mechanism, and a manual and electric switching mechanism. The switch of the valve is adjusted by the stroke control mechanism, and the torque limit mechanism is adjusted to protect the valve when the stroke control mechanism fails. The valve closing is mainly composed of electric equipment and adjustable wedge-type double gates, universal top, clamping ring, etc., and the lifting movement is performed by the guide in the valve body.
5. In addition to the local operation, electric equipment can also be operated remotely.
Structural features and uses of high-pressure gate valve
1. The electric high-pressure gate valve has a compact structure, reasonable design, good rigidity of the valve, smooth passage, and small flow resistance coefficient.
2. The sealing surface of the high-voltage power station gate valve is made of stainless steel and hard alloy, which has a long service life.
3. The electric high-pressure gate valve adopts flexible graphite packing, which is reliable in sealing and easy and sensitive in operation.
4. The driving methods are divided into manual, electric, pneumatic, and gear transmission, and the structure type: elastic wedge single gate valve, rigid wedge single gate valve, and double gate valve.
5. High-voltage power station gate valves are widely used in petrochemical, thermal power plants, and other oil and water vapor pipelines as opening and closing equipment for connecting or cutting off the medium in the pipeline.
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