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What is a resilient seated gate valve and what are its advantages?

Jun. 23, 2022

The general gate valve used in the market for a long time is generally leaky or rusty phenomenon, to overcome the general gate valve poor sealing, rust and other defects, resilient seat seal gate valve using the resilient gate plate to produce a trace of elastic deformation compensation effect to achieve a good sealing effect, from the resilient seat seal gate valve came into being

What is a resilient seated gate valve?

The gate has two sealing surfaces, the most commonly used mode gate valve two sealing surfaces form a wedge, wedge angle varies with the valve parameters, usually 50, between the resilient seat seal gate valve quality temperature is not high when 2 °52 '''' . The gate of wedge type gate valve can be made into a whole body, called rigid gate; can also be made into a gate that can produce a small amount of deformation, in order to improve its process, to compensate for the deviation of the sealing surface angle in the process, this gate is called resilient gate.

Resilient seat seal gate valve is also known as lift rod gate valve (also called open rod gate valve). Usually there are trapezoidal threads on the lift rod, and the nut at the top of the valve and the guide groove on the valve body change the rotary motion into linear motion, that is, the operating torque into the operating thrust. When the valve is opened, the passage of fluid is completely open when the gate is lifted to a height equal to 1:1 times the valve's passage diameter, but this position cannot be monitored during operation. In actual use, the top point of the valve stem is used as a marker, i.e., the position of open immobility, as its fully open position. In order to take into account the locking phenomenon due to temperature change, the valve is usually opened to the apex position and then reversed by 1/2-1 turn as the fully open position. Therefore, the fully open position of the valve is determined by the position of the gate (i.e., stroke).

 resilient seated gate valves

What are the advantages of the resilient seated gate valves?

When the resilient seat seal gate valve is closed, the sealing surface can rely only on the medium pressure to seal , that is, rely only on the medium pressure to press the sealing surface of the gate plate to the other side of the valve seat to ensure the sealing surface of the seal, which is self-sealing. Most of the gate valves are forced to seal, that is, when the gate valve is closed, rely on external force to force the gate plate to the seat to ensure the sealing surface of the sealing surface.

When the gate valve is opened, the passage of fluid is completely open when the gate is raised to a height equal to 1:1 times the gate valve diameter, but this position cannot be monitored during operation. In actual use, the top point of the valve stem is used as a marker, i.e., the position of open immobility, as its fully open position. In order to take into account the locking phenomenon of temperature changes, it is usually opened to the apex position, and then reversed 1/2-1 turn, as the fully open gate valve position. Therefore, the full open position of the gate valve, according to the position of the gate (i.e., stroke) to determine. The sealing surface is easy to wear, affecting the service life. When opening and closing, the gate and the two sealing surfaces of the valve seat friction sliding, to media pressure under the action of easy to produce abrasion wear, affecting the sealing performance, shortening the service life.

The general gate valve used in the market for a long time is generally leaky or rusty phenomenon, overcome the general gate valve poor sealing, rust and other defects, resilient seat seal gate valve using the elastic gate plate to produce a trace of elastic deformation compensation effect to achieve good sealing effect, with a light switch, reliable sealing, good elastic memory and service life and other significant advantages. Can be widely used in water, sewage, construction, petroleum, chemical, food, medicine, light textile, electric power, ships, metallurgy, energy systems and other body pipeline as a regulating and intercepting device. This is the benefits of resilient seat seal gate valve as well as the advantages.

This article is about the reasons, definitions and advantages of resilient seat seal gate valve, if you want to know more information about it, you can click here.


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