African valve is a top Knife Gate valve supplier in Kenya. We also supply valves to South Africa, Kenya, Algeria, Ghana, Tanzania, Sudan and Ethiopia. A knife gate valve is a type of industrial valve designed specifically for handling and controlling the flow of fluids with suspended solids, such as slurry, wastewater, or viscous fluids. It is called a "knife gate" valve due to its sharp-edged gate, which functions as the closing element. The gate is typically made of metal, such as stainless steel, and is designed to cut through the fluid and solids as it moves across the flow path.

The operation of a knife gate valve involves the movement of the gate perpendicular to the flow direction. When the valve is open, the gate retracts into a pocket or a bonnet, allowing the fluid to pass through the valve unobstructed. To close the valve, the gate is brought into contact with the seat, creating a tight seal and preventing the flow of fluid. African valve is a leading Knife Gate valve supplier in Kenya. Knife gate valves are available in various designs, including rising stem, non-rising stem, and through-conduit types. They can be operated manually, using handwheels or levers, or through automated systems, such as pneumatic, electric, or hydraulic actuators .Overall, knife gate valves are chosen for their ability to handle challenging fluids and solids, provide reliable shut-off, and facilitate easy maintenance due to their design simplicity.

Advantages of Knife Gate Valves:

Excellent Sealing: Knife gate valves provide a tight seal when closed, preventing leakage and ensuring reliable shut-off. The sharp-edged gate effectively cuts through the flow media, removing any potential buildup that could affect sealing.

Bi-Directional Flow: Knife gate valves can handle flow in both directions, allowing for flexibility in piping systems. This feature is particularly useful in applications where the flow direction may change.

Full Port Opening: Knife gate valves offer a full port opening, which means the internal diameter of the valve is the same as the pipeline. This design minimizes flow restrictions and pressure drops, making them suitable for applications where unobstructed flow is crucial.

Handling of Solids: Knife gate valves are specifically designed to handle fluids containing suspended solids, such as slurries or wastewater with particulate matter. The sharp gate edge cuts through the solids, preventing clogging and blockages.

Simple and Compact Design: Knife gate valves have a relatively simple construction, making them compact and easy to install. Their straightforward design also results in lower maintenance requirements and reduced downtime.

Applications of Knife Gate Valves:

Mining Industry: Knife gate valves are widely used in mining operations for handling abrasive slurries, tailings, and other mineral processing applications. They can effectively handle the high concentrations of solids typically found in mining processes

Pulp and Paper Industry: In paper mills, knife gate valves are employed for controlling the flow of various fluids, including pulp, paper stock, and wastewater. They can handle fibrous materials and maintain tight shut-off, making them suitable for paper manufacturing processes.

Wastewater Treatment: Knife gate valves play a crucial role in wastewater treatment plants, where they are used to control the flow of sludge, grit, and other solids-laden fluids. The ability to handle high solids content and provide reliable sealing is valuable in wastewater applications.

Chemical Processing: Knife gate valves find application in the chemical industry for controlling corrosive fluids, viscous materials, and abrasive slurries. They can withstand harsh chemicals and provide effective shut-off, ensuring safe and reliable operation.

Power Generation: In power plants, knife gate valves are utilized in handling fly ash, bottom ash, and other materials associated with coal combustion. They can withstand high temperatures and abrasive media, making them suitable for ash handling systems.

Description:
Available materials: SS304, SS904, SS904L, SS316, Aluminum Bronze, Monel, Bronze, Brass, Duplex steel, Inconel, Titanium, WCB, CF8, CF8M, CF3, CF3M, WC1, WC6, WC9, Cast iron, SPUER DUPLEX
Size: 1/2″- 64”
Class: 150 to 2500
Nominal Pressure: PN10 to PN450
Operations: Hand Wheel Gate valve, Gear operated Gate valve, Electric actuated Gate valve and Pneumatic Actuated Gate valve
Ends: Flanged(FF,RF,RTJ), Buttweld, Socket weld, Threaded
Standards: API607, DIN, BS, ANSI, AWWA, ASME, API6D

Visit our website to know more:
https://www.africanvalve.com/product-category/knife-gate-valve/