Unidirectional Seat Knife Gate Valve KNFV-KA
+
  • Unidirectional Seat Knife Gate Valve KNFV-KA

Unidirectional Seat Knife Gate Valve KNFV-KA


This KNFV-KA unidirectional sealing knife gate valve adopts an asymmetric reinforced sealing structure to realize zero leakage under unidirectional pressure. Its sealing performance automatically improves with rising pressure, and key parts use wear-resistant materials. Suited for slurries, powders and media with particles, it is widely used in mining, power, sewage treatment, papermaking and chemical industries. Please install it strictly per the marked direction. We provide professional technical and selection services.
  • Description

    The KNFV-KA unidirectional sealing knife gate valve is a special valve designed specifically for unidirectional pressure-bearing and harsh media conditions. Based on the general-purpose knife gate valve, it achieves zero-leakage sealing in the specified pressure direction through a reinforced asymmetric sealing structure, making it an indispensable key shut-off device in pipelines transporting slurries, powders, and slags.

     

    The valve employs an asymmetric design, with an enhanced structure on one side of the sealing seat specifically designed to withstand media pressure from a predetermined direction.

     

    Under system pressure, the gate and the sealing seat fit tightly together, and the sealing specific pressure increases with the increase of pressure, achieving an automatically enhanced sealing effect and ensuring that the bubble-level sealing standard is achieved in the specified flow direction. The gate is often made of high-hardness alloy (such as stainless steel or chromium steel) or coated with a wear-resistant coating, while the valve seat sealing surface is made of wear-resistant elastic material (such as rubber or polyurethane) or hard alloy.

     

    Wide Range of Applications

     

    Main Applications: Mining and mineral processing, power plant ash removal, municipal sewage treatment, papermaking and pulping, chemical slurry treatment.

     

    Suitable Media: Suitable for various slurries, viscous fluids, powder pneumatic conveying, and gases/liquids containing particulate impurities. (Important Note: During installation, strictly follow the arrow direction marked on the valve body to ensure the medium is pushed from the sealing side to the non-sealing side.)

     

    Our superior performance stems from our meticulous attention to every detail. We welcome you to learn more about the valve's detailed technical specifications and applications; we will provide you with professional selection support.

     

    Technical Specification

    Size Range

    NPS 2 to 80 / DN 50 to 2000

    Body Style

    Wafer / Lug

    Temperature Range

    -29℃ to 200℃

    Pressure Rating

    ASME Class 150

    Shut Off Class

    Class IV

    Body Materials

    Ductile Iron / Carbon Steel / Stainless Steel / Others

    Gate Materials

    Stainless steel / Others

    Stem Materials

    17-4PH / SS410 / SS304 / Others

    Seat Materials

    EPDM / PTFE / NBR / FKM / Metal / Others

    Applications

    Environmental, Chemical, Electricity, Mining

     

Product Inquiry

If you have any other needs, please feel free to leave a message—we will reply as soon as possible after receiving your message!

%{tishi_zhanwei}%
Unidirectional Seat Knife Gate Valve KNFV-KA
+
  • Unidirectional Seat Knife Gate Valve KNFV-KA

Unidirectional Seat Knife Gate Valve KNFV-KA


This KNFV-KA unidirectional sealing knife gate valve adopts an asymmetric reinforced sealing structure to realize zero leakage under unidirectional pressure. Its sealing performance automatically improves with rising pressure, and key parts use wear-resistant materials. Suited for slurries, powders and media with particles, it is widely used in mining, power, sewage treatment, papermaking and chemical industries. Please install it strictly per the marked direction. We provide professional technical and selection services.
  • Description

    The KNFV-KA unidirectional sealing knife gate valve is a special valve designed specifically for unidirectional pressure-bearing and harsh media conditions. Based on the general-purpose knife gate valve, it achieves zero-leakage sealing in the specified pressure direction through a reinforced asymmetric sealing structure, making it an indispensable key shut-off device in pipelines transporting slurries, powders, and slags.

     

    The valve employs an asymmetric design, with an enhanced structure on one side of the sealing seat specifically designed to withstand media pressure from a predetermined direction.

     

    Under system pressure, the gate and the sealing seat fit tightly together, and the sealing specific pressure increases with the increase of pressure, achieving an automatically enhanced sealing effect and ensuring that the bubble-level sealing standard is achieved in the specified flow direction. The gate is often made of high-hardness alloy (such as stainless steel or chromium steel) or coated with a wear-resistant coating, while the valve seat sealing surface is made of wear-resistant elastic material (such as rubber or polyurethane) or hard alloy.

     

    Wide Range of Applications

     

    Main Applications: Mining and mineral processing, power plant ash removal, municipal sewage treatment, papermaking and pulping, chemical slurry treatment.

     

    Suitable Media: Suitable for various slurries, viscous fluids, powder pneumatic conveying, and gases/liquids containing particulate impurities. (Important Note: During installation, strictly follow the arrow direction marked on the valve body to ensure the medium is pushed from the sealing side to the non-sealing side.)

     

    Our superior performance stems from our meticulous attention to every detail. We welcome you to learn more about the valve's detailed technical specifications and applications; we will provide you with professional selection support.

     

    Technical Specification

    Size Range

    NPS 2 to 80 / DN 50 to 2000

    Body Style

    Wafer / Lug

    Temperature Range

    -29℃ to 200℃

    Pressure Rating

    ASME Class 150

    Shut Off Class

    Class IV

    Body Materials

    Ductile Iron / Carbon Steel / Stainless Steel / Others

    Gate Materials

    Stainless steel / Others

    Stem Materials

    17-4PH / SS410 / SS304 / Others

    Seat Materials

    EPDM / PTFE / NBR / FKM / Metal / Others

    Applications

    Environmental, Chemical, Electricity, Mining

     

Product Inquiry

If you have any other needs, please feel free to leave a message—we will reply as soon as possible after receiving your message!

%{tishi_zhanwei}%
Submit