product category

Newsmore: [10/19]Leadership concern
Zhejiang Yongjia County Lin Wanle county magistrate visit ST valve

Wedge Gate Valve





Wedge Gate Valve

ST wedge gate valve opens and closes by moving the stem up and down with the rotating handwheel.
The rising stem wedge gate valve moves up and down and the stem nut is fixed.The dark stem gate valve is fixed and the stem nut has been opened and closed by moving up and down.
Wedge gate valve can bear high pressure because its sealing face is at an Angle to the vertical center line and the sealing is good.Generally, the stem of the wedge gate valve is treated with tempering and surface nitriding, which has good corrosion resistance and abrasion resistance.The gate and the valve seat are made of hard alloy surfacing, with good abrasion resistance, high temperature resistance, corrosion resistance, good abrasion resistance and long service life.
It is widely used in electric power, petroleum, chemical industry, metallurgy, mining, sewage treatment and other industrial fields, especially plays a great role in the equipment of deash and coal washing plant of power station.

Inquiry  



   

Description

Structural features:

1, the gate has two sealing surfaces, the two most commonly used sealing surfaces form a wedge, wedge Angle varies with valve parameters, usually 5°

2, wedge gate valve seal is by the wedge on the two sealing face and the body of the two cover wedge when the tight combination to achieve the seal

3. According to the different opening and closing modes of the gate driven by the valve stem, it can be divided into open-stem gate valves (lifting gate valves) and dark-stem gate valves (rotary gate valves).

4, according to the different structure, divided into flexible gate valve and rigid gate valve

5. The body is cast and bolted to the bonnet. The middle flange is sealed with wound gasket

6. The sealing surface is made of alloy steel or cemented carbide for wear resistance