Advantages and disadvantages of gate valves

advantages:

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

2, open and close more energy. Is compared to the globe valve, because whether open or closed, the gate movement direction is perpendicular to the flow direction of the medium.

3. Large height and long opening and closing time. The opening and closing travel of the gate is large, and the lifting is carried out by screw.

4. Water hammer phenomenon is not easy to occur. The reason is the long shutdown.

5, the medium can flow to both sides in any direction, easy to install. Gate valve access is symmetrical on both sides.

6. The length of the structure (the distance between the connecting end faces of the housing) is small.

7, simple shape, short length of structure, good manufacturing technology, wide range of applications.

8. Compact structure, good valve rigidity, smooth channel, small flow resistance, sealing surface adopts stainless steel and hard alloy, long service life, PTFE packing, reliable seal, light and flexible operation.

disadvantages:

The sealing surface is easy to cause erosion and abrasion, maintenance is more difficult. Appearance size is larger, open need certain space, open and close time is long. The structure is more complicated.