1. The gate has two sealing surfaces. The sealing surfaces form wedge-shaped and wedge-shaped angles which vary with valve parameters, usually 5 degrees.

2. The sealing principle of wedge gate valve is the close combination of the two sealing surfaces on the wedge gate plate and the two sealing surfaces on the valve body when wedging, so as to achieve the sealing performance.

3. Wedge gate valves can be divided into open-rod gate valves (lift-rod gate valves) and CONCEALED-ROD gate valves (rotary-rod gate valves) according to the different opening and closing modes of the valve rod-driven gate.

4. Wedge gate valves can be divided into elastic gate valves and rigid gate valves according to their different structural forms.

5. The body of the valve is made by casting. The body and cover are bolted together. The middle flange is sealed by spiral gasket. The metal ring can be used when the customer has special requirements.

6. Smooth channel, low flow coefficient. The sealing surface is eroded and eroded by medium.

7. The sealing surface is made of alloy steel or hard alloy, with good abrasion resistance and abrasion resistance.

8. Adopt flexible graphite packing, reliable sealing, easy and flexible operation.

9. The medium flow direction is not limited, no disturbance, no pressure reduction.

10. The shape is simple, the structure length is short, the manufacturing process is good, the application scope is broad.