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Pneumatic Actuated Knife Gate Valve

South American Valve is the greatest Pneumatic Actuated Knife Gate Valve Supplier Chile. A pneumatic actuated knife gate valve is a specific type of valve that utilizes a blade-like gate to control the flow of fluids containing solids, such as slurries or powders. It shares similarities with a standard gate valve but has some distinct features to handle abrasive or viscous media.

The gate of a knife gate valve is a sharpened, blade-like disc or plate that acts as the closure element. It is designed to cut through the fluid and solid materials, ensuring positive shutoff and preventing leakage.

South American Valve is the greatest Pneumatic Actuated Knife Gate Valve Supplier Chile. Pneumatic actuated knife gate valves are commonly used in industries such as mining, wastewater treatment, pulp and paper, chemical processing, and bulk handling, where reliable shutoff and handling of abrasive or viscous media are required. They are particularly well-suited for applications involving slurry, solid-laden fluids, or powders where other types of valves may face challenges in sealing or operation.


  • Body
  • Bonnet
  • Seal
  • Stem
  • Actuator
  • gate


  • Mining and Minerals: These valves are widely used in mining operations for controlling the flow of slurries containing minerals, ores, and other solids. They are utilized in processes such as ore processing, tailings management, and slurry transport.
  • Wastewater Treatment: Pneumatic actuated knife gate valves are employed in wastewater treatment plants for handling sludge, slurry, and abrasive fluids. They are used in processes such as sludge dewatering, digester feed, and effluent treatment.
  • Pulp and Paper: In the pulp and paper industry, knife gate valves are utilized for controlling the flow of pulp, fibrous materials, and chemical additives. They are commonly used in processes such as stock preparation, pulp storage, and paper machine systems.
  • Chemical Processing: These valves are employed in chemical plants for handling abrasive or corrosive fluids, including chemicals, acids, and slurries. They are used in applications such as mixing, dosing, and transfer of chemical products.
  • Bulk Handling: Pneumatic actuated knife gate valves are used in industries dealing with bulk materials such as powders, granules, and pellets. They find applications in pneumatic conveying systems, silo discharge, and material handling processes.
  • Food and Beverage: In certain food and beverage processes, where there is a presence of thick or viscous fluids, pneumatic actuated knife gate valves are used for flow control. They can handle media like fruit puree, chocolate, sauces, and other viscous food products.
  • Power Generation: These valves are utilized in power plants, particularly in ash handling systems, where they control the flow of ash slurry and other abrasive materials generated from the combustion of coal or biomass.
  • Steel and Mining: In steel production and mining facilities, pneumatic actuated knife gate valves are used for handling abrasive materials, such as iron ore, coal, coke, and slag.


  • Effective Flow Control: These valves provide excellent flow control for abrasive or viscous fluids, including slurries, powders, and fibrous materials. The knife gate design with a sharpened blade allows for precise and reliable shutoff, minimizing leakage and ensuring efficient flow regulation.
  • Abrasion Resistance: Pneumatic actuated knife gate valves are specifically designed to withstand abrasive media. The gate’s sharpened edge and robust construction make them highly resistant to wear and erosion caused by solids present in the fluid, resulting in extended valve life and reduced maintenance requirements.
  • Bi-Directional Sealing: Knife gate valves offer bi-directional sealing, meaning they can effectively seal and prevent leakage in both flow directions. This feature is advantageous in applications where reversing flow or bidirectional flow control is required.
  • Unobstructed Flow Path: When fully open, knife gate valves provide a clear and unobstructed flow path, minimizing pressure drop and ensuring smooth fluid passage. This characteristic is particularly beneficial in applications where minimal flow restriction is desired.
  • Compact Design: Pneumatic actuated knife gate valves are typically compact and space-saving compared to other types of valves. Their streamlined design makes them suitable for installations with limited space or where a smaller footprint is preferred.
  • Rapid Operation: Pneumatic actuation allows for quick and responsive operation of knife gate valves. They can open or close rapidly, facilitating efficient process control and reducing downtime.
  • Easy Maintenance: Knife gate valves are relatively simple in design, consisting of fewer parts compared to some other valve types. This simplicity makes maintenance and servicing easier, resulting in reduced downtime and lower maintenance costs.
  • Flexibility in Installation: Pneumatic actuated knife gate valves can be installed in various orientations, including horizontal and vertical pipelines. This installation flexibility allows for greater adaptability to different piping configurations and spatial constraints.
  • Remote and Automated Control: Pneumatic actuated knife gate valves can be easily integrated into control systems and automated processes. They can be remotely controlled, allowing for centralized operation and seamless integration into overall process automation.


  • Body Material: Cast Ductile Iron, CF8M, CF8, WCB
  • Class: Class 150/PN16
  • Size: 2″, 3″, 4″, 5″, 6″, 8″, 10″, 12″
  • End Connection: Wafer type/Lug type
  • Operation: Pneumatic Actuated
  • Pneumatic Actuation Type: Double Acting, Spring Return, User
  • Nominal Size: DN50 to DN1000
  • Nominal Pressure: PN16 to PN25, Class150″