Flange Connection Type Pneumatic Knife Gate Valve
Product Description
Flange Connection Type Pneumatic Knife Gate Valve Foundry Iron Body is a type of knife gate valve which is designed with a flange connection on both ends of the valve body. This type of valve is usually made of cast iron, which provides excellent durability and resistance to corrosion.
The valve features a knife-shaped gate that slides in and out of the flow stream to control the flow of fluid or powder materials. The gate is driven by a pneumatic actuator that opens and closes the valve in response to a control signal. The actuator provides fast, reliable and precise control of the valve, making it suitable for a wide range of applications in the chemical, food, mining, and wastewater treatment industries.
The flange connection type of this valve allows for a secure and easy installation of the valve into a pipeline system. The flanges are designed to match the pipe dimensions and pressure rating, ensuring a leak-free connection. The valve can be easily removed from the pipeline for maintenance or repair without having to disassemble the entire pipeline system.
Application:
Suitable for general industrial applications, mainly in:
Pulp production, water treatment, power plants, sewage treatment plants, chemical plants.
The valve has the characteristics of narrow retention area and sharp gate.
Body and seat design ensures closure of suspended solids without clogging in such industries.
Advantages：
- Flange connection: Pneumatic knife gate valves feature a flanged connection, which allows for easy installation and removal from the pipeline system. The flange connection ensures a secure and leak-free joint when the valve is bolted to the pipeline.
- Knife gate design: These valves are equipped with a sharp-edged gate, often made of stainless steel, that cuts through the media when closing and offers a tight seal when fully closed. The knife gate design allows for effective shut-off even in applications with high concentrations of solids or sticky substances.
- Pneumatic actuation: Pneumatic knife gate valves are operated using compressed air or gas as the actuation medium. They are designed to be controlled remotely, offering quick and reliable operation for process automation and remote control systems.
- Bi-directional flow: These valves are typically designed for bi-directional flow, allowing the media to flow in either direction. This feature provides flexibility in pipeline configurations and simplifies installation.
- Self-cleaning capability: The knife gate design of these valves facilitates self-cleaning during operation. As the gate moves, it scrapes and removes any debris or buildup on the sealing surfaces, minimizing the risk of clogging or blockage.
- Tight shut-off: Pneumatic knife gate valves are engineered to provide a tight shut-off, preventing any leakage or seepage of the media when fully closed. The sharp-edged gate ensures a secure seal against the seat, enhancing the valve's performance in applications where leakage is not tolerable.
- Corrosion-resistant materials: To withstand harsh and corrosive environments, pneumatic knife gate valves are often constructed with materials such as stainless steel, cast iron, or other corrosion-resistant alloys. This ensures long-term durability and reliability, even in demanding industrial applications.
- Wide range of sizes: These valves are available in a wide range of sizes to accommodate various pipeline diameters and flow rates. From small-scale applications to large industrial processes, pneumatic knife gate valves offer versatility in terms of size options.
- Application-specific options: Depending on the specific application requirements, pneumatic knife gate valves may come with additional features such as extended bonnets for insulation, emergency manual override for backup operation, and various actuator options to suit different control systems.
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