Gate Valves – Five Most Important Varieties

The gate valve is basically a controller installed on a pipe. This includes a round handle in a thicker section of pipe. 

‘Gate valve’ (also known as ‘ วาล์วประตู’ in the Thai language) is a very important tool because it helps control the flow of fluid. Whether it helps to stop or start linear water flow or other types of liquids.

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Gate Valve- Differentiate According to Wedges

Different valves use different types of slices and each valve is distinguished accordingly. The following sections explain some important classifications.

Flexible wedge valve: This valve includes a one-part and two-part disc to change the angle between the seats. The wedge valve is quite flexible and can be found in different varieties. 

One of the most commonly used flexible wedge valves is the parallel side valves used in stem valves. These valves can expand and contract because they have the ability to withstand various climatic conditions.

Solid wedge valve: Gate valve with a solid wedge can be used for all types of liquids. It is suitable for turbulent flow because it is strong with simple construction. With solid construction in one section, this wedge valve is widely used in many areas.

Classification According to Stem

Valve gates are also classified according to the type of stem. A rod is a device that connects the disk and the valve handwheel.

Rising stem valve: This special stem valve includes a threaded shaft that can be rotated using a handwheel. 

Stem valves do not rise: Other types of stem valves include a non-rising stem valve where the stem remains stationary. There is no upward movement even when the valve is opened. It is used in underground tunnels and places where there is little or no space.

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