Gate Valve

Gate Valve


Gate valves are essential for fluid control systems, known for providing a tight seal and minimal flow resistance when fully open. At Flexy, we offer high-quality Douson gate valves designed to meet the stringent demands of the oil and gas, petrochemical, water treatment, and power generation industries.

Douson gate valves feature a robust design, typically constructed from high-grade materials such as stainless steel, carbon steel, and ductile iron or other alloys, ensuring durability and resistance to corrosion. The valve consists of a gate or wedge that moves up and down to control the flow of fluid. When fully lifted, the valve allows for unobstructed flow with minimal pressure drop. When lowered, the gate provides a tight seal that prevents fluid from passing through.

Design and Construction:
  • SRising Stem Design: The stem of the gate valve rises and lowers with the gate, providing a visual indication of the valve position (open or closed).
  • Non-Rising Stem Design: In this configuration, the stem remains stationary while the gate moves up and down within the valve body.
  • Solid Wedge and Flexible Wedge Gate Valves: Offered to accommodate different operational requirements, including high pressures and varying temperatures.

Our gate valves are available with both rising and non-rising stems to suit different installation space constraints and visibility requirements. The flexible and solid wedge designs ensure reliable sealing and performance in various temperature and pressure conditions. Advanced sealing technologies with options like metal-seated or resilient-seated configurations provide a leak-tight shut-off.

Douson Gate Valves are available in these 3 types:
  • Solid Wedge Gate Valves: Suitable for general applications where a tight seal is required.
  • Flexible Wedge Gate Valves: Adapt to changes in temperature and pressure, maintaining a reliable seal over a wide range of conditions.
  • Parallel Slide Gate Valves: Offered for applications requiring minimal friction and ease of operation.

Features and Benefits:
  • Bi-Directional Sealing: Provides tight shut-off in both directions of flow, minimizing leakage and ensuring efficient fluid control.
  • Low Operating Torque: Ease of operation and reduced wear on valve components.
  • Rising Stem Visibility: Allows operators to visually confirm the valve position, enhancing safety during operation.
Douson gate valves are available in a variety of sizes and pressure ratings, accommodating different operational requirements from low-pressure systems to high-pressure industrial applications. The valves come with versatile end connections, including flanged, threaded, and butt-welded, offering flexibility in installation.

These gate valves are used across numerous industries. In the oil and gas sector, they control the flow of crude oil, natural gas, and refined products in pipelines, storage facilities, and processing plants. Petrochemical plants rely on them for managing the flow of chemicals and gases. They are also essential in water distribution systems, desalination plants, and wastewater treatment facilities for isolating flow. Power generation plants use them for steam, water, and fuel systems to ensure efficient and reliable operation, and they are suitable for various general industrial applications requiring reliable flow control and isolation.

At Flexy, we prioritize quality and reliability. Our gate valves undergo rigorous testing and quality control processes to meet international standards such as API, ANSI, and ISO. This commitment to quality ensures that our customers receive valves that perform exceptionally well and have a long service life.

Douson gate valves are designed to provide reliable, efficient, and durable flow control solutions across a wide range of industrial applications. With our focus on quality and customer satisfaction, we deliver products that enhance operational efficiency and safety. Trust Flexy for your gate valve needs and experience excellence in engineering and service.

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