A knife edge can enter the flow stream and, if necessary, be used to remove any materials that might prevent the valve from sealing fully. This type of valve is known as a knife gate valve.
What is a Knife Edge Gate Valve, and how does it differ from other valves?
A Knife Edge Gate Valve is a specific type of industrial valve used for regulating and controlling the flow of various media, such as liquids, powders, and slurries, within a pipeline system. The distinct feature that sets it apart from other valves is its design, characterized by a sharp-edged gate that slides across the flow path to provide a tight seal. This gate design allows for precise and efficient shut-off, making the Knife Edge Gate Valve ideal for applications requiring high isolation and minimal leakage.
Unlike conventional valves with soft-seated seals, the knife edge gate ensures minimal contact with the media, reducing the risk of clogging and ensuring smoother flow control. These valves find extensive use in industries dealing with abrasive or viscous media, such as mining, chemical processing, and wastewater treatment, where reliable and uninterrupted flow regulation is paramount.
What are the primary applications of Knife Edge Gate Valves in industrial settings?
Knife Edge Gate Valves play a crucial role in various industrial settings due to their exceptional performance in specific applications. One of the primary applications of these valves is in industries dealing with abrasive and viscous media, such as mining and mineral processing, where they effectively handle materials like ores, slurry, and tailings. Moreover, in the chemical and petrochemical sectors, Knife Edge Gate Valves control the flow of corrosive and hazardous fluids, ensuring both safety and efficiency.
Their ability to provide tight shut-off makes them valuable in water and wastewater treatment plants, preventing leakage and enabling precise control during purification. These valves find use in the power generation industry, particularly in handling fly ash, bottom ash, and other challenging materials. Their versatility and robust design make Knife Edge Gate Valves indispensable for diverse applications across numerous industrial sectors.
|Design Standards||MSS SP 81|
|Ansi Class / Rating||150#/PN 10|
|F to F Standard||ASME B16.10|
|Size||50 MM TO 600 MM|
|Ends||Wafer Lugged End, Full Lugs, Wafer Type, Flangeless|
|Valve Operation||Mannual, Pneumatic, Cylinder, Bevel Gear, Electric Motor, Chain Wheel, Lever|
|Pressure Rating||50 mm to 300 mm –150 psi 400 mm to 450 mm –75 psi 500 mm to 600 mm –50 psi|
|End Connections||A choice of flanged, RTJ flanged or buttwelding end for piping flexibility.|
|Application & uses||Pulp & Paper Industry
Chemical & Steel Industry
|4.||Bolt||Stainless steel A4|
|5.||Top packing gland||Ductile iron GJS-400-15 (GGG-40)|
|6.||Packing||NBR + PTFE|
|7.||Bolt||Stainless steel A4|
|8.||Body||Ductile iron GJS-400-15 (GGG-40)|
|9.||Gate||Stainless steel 316|
|10.||U-shaped seal||Steel / NBR|
|11.||Bolt||Stainless steel A4|
|13.||Washer||Stainless steel A4|
|14.||Bolt||Stainless steel A4|
Knife Edge Gate Valves in Distillery Plants
Knife Edge Gate Valves in Sugar Industries
Knife Edge Gate Valve in Process Industries
Knife Edge Gate Valve in Power Plants
Knife Edge Gate Valve in Refineries
Knife Edge Gate Valve in Petrochemical Plants