What is the function of gate valves on ships?

What Does Gate Valve Mean?

A gate valve has a flat closure element that slides into the flow stream to stop the fluid. They are one of the most commonly used valves, and are primarily used to permit or prevent the flow of liquids.

Gate valves can be used in demanding environments such as high-temperature and high-pressure environments. They are often used in:

● Power plants

● Water treatment

● Mining

● Offshore applications

Gate valves are also known as knife valves, slide valves, sluice valves or linear motion valves.

 

What is the function of gate valves on ships?

 

What is the function of gate valves on ships?

Gate valves are used in applications where a full unrestricted flow of the fluid is desired. As the gate can be opened to the full bore it provides very less frictional loss.

Gate valves are not suited for regulating flow as the gate arrangement allows the valve to remain in either fully closed or open position. In order to increase tightness of the seal some gate valves are provided with twin discs which can be pressed against the seat with the help of a spring when closed. In case the valve requires a change in direction, a full bore angle valve can be used.

Steam circuits on ships are best suited for the use of gate valves due to the characteristics described above. Since steam causes heating and deformation of the material that it passes through; normally such valves do not have a solid gate, rather they have a flexible gate made out of two circular plates with a hub in-between to account for any change of dimensions in the valve body.

 

For more information about gate valves, feel free to contact us.

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