Duplex Stainless Steel Gate Valve

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Sea Water Duplex Steel Flexible Wedge Gate Valve

Details:

Deki Duplex Steel Flexible Wedge Gate Valves are most common valves for heavy duty open and close functions. They are primarily used for viscous fluids, chemical fluids, marine applications and are not normally considered for throttling purposes. A traveling wedge is moved with the operation of the stem nut. The wedge travels perpendicularly to the direction of the flow. The advantages of gate valves include minimum pressure drop when fully open, tight shut-off when fully closed, and relatively free of contamination buildup.

Deki Duplex Steel Flexible Wedge Gate Valves can be operated by hand wheel, gear operators, electric actuators, pneumatic actuators. Other special requirements such as bypasses, locking devices, chain wheels, extended stems, non-rising stem structure, and bonnets for cryogenic services, etc. can be available upon request.

Material: 4A, 5A, etc.

Size Range: 2” - 60”

Pressure Rating: ASME Class 150, 300, 600, 900, 1500, 2500

Temperature Range: -196°C~600°C

Standards:

Design and Manufacture: API 600, ASME B16.34

Face to Face Dimensions: ASME B16.10

Flange End Dimensions: ASME B16.5, ASME B16.47

Butt Welded Dimensions: ASME B16.25

Pressure Test: API 598

Class 150Lb API600 Gate Valves

Class 300Lb API600 Gate Valves

Class 600Lb API600 Gate Valves

The opening and closing part of the gate valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and is not suitable for adjustment and throttling. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used wedge gate valve form a wedge shape. The wedge angle varies with the valve parameters, usually 50. The gate of the wedge gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce a small amount of deformation to improve its craftsmanship and make up for the deviation of the sealing surface angle during processing. The plate is called an elastic gate. When the gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, relying on the medium pressure to press the sealing surface of the gate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. Most gate valves are forcibly sealed, that is, when the valve is closed, the gate must be forced against the valve seat by external force to ensure the tightness of the sealing surface.

We are committed to expanding the scope of application of our Duplex Stainless Steel Gate Valve and digging deeper into niche applications. We have a service team with excellent business, quick response and strong professional ability. With the rapid advancement of economic globalization, market competition has become increasingly fierce, and the renewal of products is faster and faster.

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