Sea Water Duplex Steel Flexible Wedge Gate Valve

Details:

Gate valves made of Deki duplex stainless steel are widely used in heavy-duty applications that require reliable open and close functions. These valves are particularly suited for handling viscous fluids, chemical fluids, and marine applications, but are not recommended for throttling purposes. When the stem nut is operated, a traveling wedge moves perpendicularly to the flow direction. The benefits of using these types of valves include a minimal pressure drop when fully open, a tight shut-off when fully closed, as well as a relative absence of contamination buildup.

The gate valve made of duplex stainless steel offers minimal flow resistance. This is primarily due to the straight design of the valve body, allowing the medium to flow in a straight line with minimal obstacles. To ensure reliable sealing, the valve incorporates a well-designed sealing surface and packaging seals. Additionally, the long closing time of the stainless steel gate valve reduces the likelihood of water hammer. The valve's simple shape, compact structure, high-quality manufacturing process, and versatile applications further enhance its value. By taking these factors into account, the gate valve provides efficient performance and is widely applicable in various industries.

Material: 4A, 5A, etc.

Size Range: 2” - 60”

The pressure ratings available for this product include ASME Class 150, 300, 600, 900, 1500, and 2500. This means that the product is designed and tested to safely operate in environments with varying levels of pressure, ranging from Class 150 to Class 2500. No matter what pressure rating you require, you can rest assured that this product will perform reliably and efficiently. So whether you're dealing with high-pressure or low-pressure applications, you can count on this product to meet your needs.

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 gate valve consists of a gate which serves as the opening and closing component, moving perpendicular to the fluid flow direction. It is important to note that the gate valve is designed for full open and full closed positions, and it is not suitable for adjusting or throttling the flow. The gate of this valve has two sealing surfaces, commonly shaped like a wedge. The wedge angle can vary depending on valve specifications, usually around 50 degrees.
There are two types of gates used in wedge gate valves. The first type is a rigid gate, which remains solid and unchanged in shape. The second type is an elastic gate, designed to possess a slight degree of deformation. This flexible gate helps enhance the craftsmanship of the valve and compensates for any deviations in the sealing surface angle during processing.
During the closing process of the gate valve, the two sealing surfaces rely on the pressure of the medium itself to achieve a complete seal. This means that the medium pressure pushes the gate's sealing surface against the valve seat on the opposing side, ensuring a tight seal. This self-sealing mechanism is the basis for the gate valve's functionality. However, it is worth noting that most gate valves require external force to maintain a tight seal when closed. This external force ensures that the gate is pressed firmly against the valve seat, guaranteeing the integrity of the sealing surface.

As a company, we are dedicated to exploring new opportunities for our Duplex Stainless Steel Gate Valve, especially for niche applications. Our team of expert professionals is known for their exceptional service, swift response, and strong business acumen. In today's world of rapid globalization, market competition has become exceedingly intense, which makes product innovation and renewal increasingly crucial. We acknowledge this reality and are always looking for ways to stay ahead of the curve and offer our customers the best solutions possible.

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