I Overview of Gas Flat Gate Valve

Gas flat gate valve is a gate valve specially designed for natural gas, coal gas and other petroleum gas media. It is mainly used on natural gas pipelines and urban pipeline networks. The conventional structure used is a concealed stem structure, and the height of the valve stem remains unchanged regardless of whether the valve is opened or closed. In addition, our company has specially improved the structure of the filling part of the flat gate valve, achieving a true triple sealing effect. Gas flat gate valves have the characteristics of simple structure, reliable sealing, low switching torque, and long service life.

II Structural characteristics of gas flat gate valve

1. The valve seat of the gas flat gate valve adopts an O-ring seal and a floating valve seat structure with pre tightening force, which enables bidirectional sealing of the inlet and outlet of the flat gate valve. The opening and closing torque of this structure is only half of that of ordinary valves, which can achieve easy opening and closing of the valve.

2. When the gas flat gate valve is fully opened, the channel is smooth and straight, the flow resistance coefficient is extremely small, there is no pressure loss, and the pipeline can be cleaned with a rough ball.

3. The gas flat gate valve adopts a packing structure with self sealing ability, which does not need to be adjusted frequently. It is extremely lightweight to open and close, and has reliable sealing performance. The packing box is equipped with an auxiliary sealing high-quality injection structure, and the sealing performance is absolutely reliable. In addition to PTFE packing, it also has a triple sealing structure with 0-ring sealing sleeve, which truly achieves zero leakage and solves the problem of easy leakage at the packing of general valves.

4. When the gas flat gate valve is closed, it can automatically release the high pressure inside the chamber, ensuring safe use.

5. The gas flat gate valve has a fully enclosed structure, good protection performance, and can adapt to all-weather requirements. It can also be bolted with countersunk holes to prevent leakage according to customer requirements.

III Standard specifications for gas flat gate valves

1. The design standard for gas flat gate valve shall comply with GB/T 19672 standard

2. The flange standard of gas flat gate valve shall comply with GB/T 12224 standard

3. The structural length of gas flat gate valve shall be in accordance with GB/T 12221 standard

4. The pressure test standard for gas flat gate valves shall be in accordance with GB/T 13927 standard

4、Main components and external dimensions of gas flat gate valve

PN10主要尺寸

PN16主要尺寸

PN25主要尺寸

Precautions for using gas flat gate valve:

1. Say the important thing three times: don't push yourself to the brink of death! Don't push yourself to the brink of death! Don't push yourself to the brink of death!

2. When opening or closing in place, the valve stem handle or handwheel should be rotated 1/2 turn. To ensure that the gate is in a floating state and maintain good sealing performance.

Note: Pre understand the detailed parameters, data, and prices of gas flat gate valves.

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