Sliding gate valves

Sliding gate valves

What are sliding gate valves?

Gate valves are designed for fully open or fully closed service. They are installed in pipelines as isolating valves and should not be used as control or regulating valves. operation of Sliding gate valves is performed either clockwise to close (CTC) or clockwise to open (CTO) rotating motion of the stem. When operating the valve stem, the gate moves up or downwards on the threaded part of the stem. A resilient seated gate valve has a plain valve bottom allowing free passage for sand and pebbles in the valve. If impurities pass as the valve closes, the rubber surface will close around the impurities while the valve is closed.

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Sliding Gate Valves Specification

Sliding Gate Valves Material

Parallel and pneumatic slide gate valve suppliers in UAE

How do you use a parallel slide gate valve?

Gate valves can be divided into two main types: Parallel slide gate valve and wedge-shaped. The parallel gate valves use a flat gate between two parallel seats, and a popular type is the knife gate valve designed with a sharp edge on the bottom of the gate. The wedge-shaped gate valves use two inclined seats and a slightly mismatched inclined gate. A Parallel Slide (Spring Loaded) Gate Valve is actuated by moving the disc assembly in and out of the seats with the stem. The necessary thrust for opening or closing is imparted to the branch by the Parallel slide valve actuator, which is supported and restrained by the yoke structure.

Stocking distributor of parallel slide valve in Bahrain, check manual slide gate valve specification/ weight and price per piece in Dubai

What is the advantage of slide valves?

Pneumatic slide gate valve provides a clear opening and shutting-down operation. It has very little pressure drop during operation as it is opened and closed faster. They also facilitate flow in both directions enabling the flow to be controlled in either direction. The Manual slide gate valve cannot regulate the flow rate as it is not designed for throttling applications. When it is opened and closed, in the partially opened state, it can create a lot of vibration and noise with turbulence in the system. Since it opens and closes within the fluid flow, the disc and seat can wear off too quickly.

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Where are manual slide gate valves used?

Manual slide valve is used to maintain and repair materials such as rotary valves, screw conveyors, and conveyor belts. You will get more efficiency when you use slide gates to control the flow of powders. These are used in places where particles or slurry is expected to clock in the valve body. As the Irrigation slide gate valves slide open and close, they eliminate the risk of clogging the valve and the pipeline.

Looking for a parallel slide valve manufacturer? Stainless steel slide gate valves available in various types including manual, electric, pneumatic

Does an irrigation slide gate valve reduce pressure?

This is effectively no resistance to the flow. Because of this, there is very little reduction in pressure as the fluid passes through the Sliding gate control valve. Sluice gate valves cannot be used for throttling because they can’t accurately control the flow capacity. There are automated systems where the valve opens and closes according to certain criteria. Also, there is Electric slide gate valve that can be operated remotely from a distance without direct human intervention.

Sliding gate control valve in various end connections including NPT, SW & flanged, check manual slide valve specifications, body material, and price list

How many turns does it take to open a sliding gate control valve?

Depending on the type, size, and application, the Stainless steel slide gate valve can have up to 3 turns. It could be opened, closed, or kept in between. But it is not recommended for throttling operations. One could identify the valve position by observing the valve stem. If the stem is fully inside the valve body, then the valve is fully closed. If the stem is fully outside the valve body, then it is fully open. If the stem stands in between the two points, the valve is somewhat open. There are also markings on the valve body to show the position of the sliding gate.