Gear Box Gate Valve

Product Date:

Size: 2"-48" DN50-DN1200

Class: 150LB-2500LB PN16-PN250

End connection: Flange, BW

Operating: Handwheel, gear box, bare shaft.

Design standard:

Design: API/DIN/ EN/GOST/GB

Face to Face: API/DIN/ EN/GOST/GB

Flange: API/DIN/ EN/GOST/GB

BW END: API/DIN/ EN/GOST/GB

Test: API 598

The gate valve is a gate for opening and closing. 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 or throttled. The gate valve is sealed by the contact between the valve seat and the gate plate, and the sealing surface is usually welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc.

Product features：

The wedge gate valve can withstand high pressure because the sealing surface of the valve is at a certain angle with the vertical center line, and the sealing is better. Under normal circumstances, the valve stem of the wedge gate valve has been quenched and tempered and surface nitriding treatment, which has good corrosion resistance and scratch resistance; the seal of the gate and the valve seat is made of hard alloy surfacing, which is wear-resistant and high-temperature resistant. , Corrosion resistance, good scratch resistance, long service life; complete valve body materials, packing and gaskets are reasonably selected according to actual working conditions or user requirements, and can be applied to various pressure, temperature and medium working conditions

Advantage:

1. Small flow resistance. The medium channel inside the valve body is straight, 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 stop valve, because whether it is open or closed, the direction of movement of the gate is perpendicular to the direction of medium flow.

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

4. Water hammer is not easy to produce. The reason is the long closing time.

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

6. The structural length (the distance between the two connecting end faces of the shell) is small.

7. The shape is simple, the length of the structure is short, the manufacturing process is good, and the scope of application is wide.

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

Application:

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