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DELCO Valves: A Reputable Manufacturer of Gate Valves in China
- Morning Jiang
DELCO Valve is renowned in the gate valve manufacturing industry in China, specializing in producing carbon steel and stainless steel gate valves ranging from DN15 to DN1000. The company offers manual, electric, and pneumatic actuated industrial gate valves widely used in industries such as oil, chemical, power, metallurgy, water supply and drainage, construction, steel, and gas storage and transportation. With its efficient sealing performance and long-lasting durability, DELCO has earned the trust of customers both domestically and internationally.
What is a Gate Valve?
Gate valves operate by moving a gate perpendicular to the direction of fluid flow to block or allow the passage of media through the pipeline. They can only be fully opened or fully closed and are not suitable for flow regulation. Their simple structure and ease of operation make them ideal for applications requiring low flow resistance and long-term sealing performance.
Main Advantages of Gate Valves
- Low Flow Resistance: The straight internal passage of the valve body allows for linear flow of the media, reducing pressure loss.
- Durable Sealing Surfaces: Due to their unique design, sealing surfaces are less susceptible to erosion and wear from the media, extending their lifespan.
- Effortless Operation: Compared to globe valves, gate valves require less force to open and close.
- Reduced Water Hammer Effect: The longer closing time of gate valves effectively minimizes water hammer damage to the pipeline.
DELCO Gate Valve Classification and Features
1. Parallel Gate Valve
DELCO’s parallel gate valve features a parallel piston structure, making it suitable for high-pressure applications. Its exceptional sealing performance requires minimal operating force, and the gap between the gate and seat gradually decreases, ensuring no leakage of fluid. It is ideal for applications needing high flow rates and excellent sealing.
2. Wedge Gate Valve
The wedge gate valve features a wedge-shaped gate and seat, making it suitable for the oil and gas industries. It has stronger sealing capabilities but requires more operating force. DELCO offers both solid wedge and flexible wedge options:
- Solid Wedge: Designed to withstand high fluid pressures, it is suitable for most applications with good sealing performance.
- Flexible Wedge: This valve has a gate that can bend slightly to accommodate minor misalignments of the seat, making it ideal for applications where the seat may shift.
3. Rising Stem Gate Valve
The rising stem gate valve operates through an exposed stem that is visible above the valve body. It is commonly used in above-ground pipeline engineering, allowing for easy observation of the valve’s open or closed status.
4. Non-Rising Stem Gate Valve
In the non-rising stem gate valve, the stem nut is located inside the valve body, making it suitable for applications with limited space, such as underground pipelines. Its height remains unchanged, allowing for flexible installation.
Other DELCO Gate Valve Products
DELCO offers a wide variety of gate valves to meet different industry needs, including:
- By Standard: GB, API, DIN, and JIS standards
- By Connection Type: Flanged, welded, and threaded connections
- By Pressure Rating: High-pressure, low-pressure, and medium-pressure gate valves
- By Actuation: Manual, electric, and pneumatic actuated
- By Material: Stainless steel, forged steel, cast steel, carbon steel, cast iron, bronze, brass, and plastic
Conclusion
DELCO provides a comprehensive range of gate valves with stringent manufacturing processes, catering to industries such as oil, gas, and chemicals. Users can select between parallel and wedge gate valves based on their specific application requirements, ensuring efficient and safe fluid control. DELCO is committed to delivering outstanding products and services to support reliable fluid control solutions across various industries.
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