Types of Resilient Seated Gate Valve


Gate valves are used to open and close the fluid pathway, more commonly for the linear mediums. This makes gate valves suitable to use in a wide number of applications. For instance, in irrigation and chemical plants, gate valves are used to manage the flow of different kinds of fluids.

 When it comes to the classification part of the gate valves, there are many ways to do it. This is because gate valves exist in many designs and sizes to meet the different needs of the industries. Each kind of gate valve is popular for its usage in different fields.

According to the materials used

Different types of materials are used in the manufacturing of gate valves. These include brass, and bronze iron, with both cast iron and ductile iron. In steel, cast carbon steel, alloy steel, stainless steel, and forged steel are commonly used in the manufacturing process. Also, there are valves made up of gunmetal which are easily available from the manufacturers.

Metal vs resilient seated gate valve

Before the introduction of resilient seated gate valves in the market, metal seated gate valves were commonly used.  The angular sealing devices of a metal seated valve fail to make a tight closure to sand and pebbles.  Irrespective of thorough cleaning of the pipes, the system cannot be free from impurities. Here, a resilient seated valve comes in to aid. Its plain valve bottom allows free passage for sand and pebbles.  For the impurities, a quality rubber surface is created for absorption purposes and removed when the valve gets open again.

According to wedges

Solid wedge valve

This kind of valve is used for all liquid types. Mainly, it is used for turbulent flow because of its strong yet simple build.

Split wedge valve

Suitable to use for corrosive liquids and non-condensing gas. It includes two pieces, positioned between the tapered seats in the valve body.

Flexible wedge valve

As the name indicates, these valves are rather flexible and so can be easily used in many different varieties. This type includes one-piece as well as twin-piece that alter the angle in between the seats. Its traits make it able to withstand any varying climatic conditions.

According to the bonnet styles

For small common applications, screw-in bonnets are more popular. This is because it involves small functioning. While for complex industrial applications, bolted bonnets are more preferably used.

According to stem

Rising stem valve

It includes a threaded shaft that can be rotated with a handwheel. The valve opening position rises stem and descends while the gate valve is closed.

Non-rising stem valve

As it is non-rising, the stem remains stationary in this kind of valve. In the opening position of the valve, there will be no upward movement. The common use of the non-rising stem valve is in underground tunnels where there is little or no space.

No matter which type of gate valve you choose for your specific industrial application, all types come with incomparable sealing characteristics.

Connect with The leading valve manufacturers- EG Valves Manufacturing Co., Ltd to buy the highest quality resilient seated gate valves at the best prices
Location: Yongjia County, Wenzhou, China, 325100

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