Advantages And Disadvantages Of Gate Valve

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1, the flow resistance is small.

The internal dielectric channel of the valve body is straight through, the medium flows in a straight line, and the flow resistance is small. 2, the opening and closing time is more labor-saving.

is compared with the cutoff valve, because whether it is open or closed, the direction of the gate motion is perpendicular to the flow direction of the medium. 

3, the height is large, the opening and closing time is long.

The opening and closing stroke of the gate is large, and the lifting and lowering is carried out through the screw. 

4, water hammer phenomenon is not easy to produce.

The reason is that the shutdown time is long. 

5, the media can flow to both sides in any direction, easy to install.

The sides of the gate valve channel are symmetrical.

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

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

8, compact structure, good valve rigidity, smooth channels, small flow resistance, dense cover using stainless steel and cemented carbide, long service life, the use of PTFE filler, reliable sealing, light and flexible operation.


The sealing surface is easy to cause erosion and abrasion, maintenance is more difficult. Size is large, open requires a certain amount of space, opening and closing time is long.

The structure is more complex.

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