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China Suppliers Factory Manual Lugged Knife Gate Valve for Slurry, DN65-DN300, 1.0-4.0Mpa, <200℃

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Manual Lugged Knife Gate Valve

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Nominal Diameter

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DN65 to DN300

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Nominal Pressure

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1.0MPa, 1.6MPa, 2.5MPa, 4.0MPa

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Working Temperature

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Up to 200℃

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Applicable Medium

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Slag Water

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Additional Information

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As a leading manufacturer and supplier in China, our factory specializes in producing high-quality manual lugged knife gate valves. We can also customize sizes and colors according to customer specifications.

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    Description

    Lugged Knife Gate Valve is specifically engineered for demanding industrial applications involving slurry, pulp, powder, and wastewater. Its compact structure and sharp-edged gate allow it to cut through thick or solid-laden media, making it ideal for industries such as mining, paper, chemical processing, and sewage treatment.

    This knife gate valve features a one-piece body, corrosion-resistant coating, and a stainless steel or alloy blade for long-lasting durability. Its unidirectional shut-off design minimizes pressure loss while ensuring a tight seal, even under tough flow conditions. The non-clogging structure and low operating torque make it highly suitable for systems with limited maintenance access.

    Available with various actuation options—manual handwheel, pneumatic, or electric—the knife gate valve can be adapted for both remote control and manual operation. It supports installation between flanges using wafer or lug-type connections, depending on system requirements.

    As a trusted valve manufacturer in China, we produce all knife gate valves according to international standards such as DIN, and ISO. They are pressure-tested and inspected before shipment to ensure performance and reliability.

    Choose our knife gate valve to ensure smooth, safe, and efficient flow control in harsh industrial environments. It's a reliable solution for handling abrasive and viscous media with ease.

    • Slurry & Pulp Handling
    • Corrosion-Resistant Coating
    • Non-Clogging Structure
    • Low Operating Torque
    • Manual / Pneumatic / Electric Actuation
    • DIN & ISO Standards
    • Pressure-Tested Before Shipment

    Standard Materials Of Main Parts

    NO PART NAME MATERIAL
    1 Body Ductile Iron
    2 Oring NBR
    3 Sealing NBR/EPDM
    4 Disc 316
    5 Packing PTFE
    6 Gland WCB
    7 Bolt 201
    8 Nut/Bolt 201
    9 Pin 201
    10 Split pin 200
    11 Yoke A3
    12 Stem 2cr13
    13 Yoke Head WCB
    14 Stem Nut Brass
    15 Bearing Zchsnsb10-6
    16 Yoke head cao WCB
    17 Nut 201
    18 Handwheel Ductile Iron

    DIMENSIONS: (mm)

    DN L D D1 D2 D0 N-Th d H H1
    65 48 185 145 118 180 4-M16 Ø18 335 415
    80 51 200 160 132 220 8-M16 Ø18 360 455
    100 51 220 180 156 240 8-M16 Ø18 400 515
    125 57 250 210 184 240 8-M16 Ø18 455 595
    150 57 285 240 212 280 8-M20 Ø23 510 675
    200 60 340 295 266 300 12-M20 Ø23 585 805
    250 70 405 355 319 320 12-M24 Ø27 695 965
    300 76 460 410 370 320 12-M24 Ø27 765 1085
    Lugged Knife Gate Valve (1)

    More Details

    Lugged Knife Gate Valve (3)
    Lugged Knife Gate Valve (4)
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    Frequently Asked Questions

    QWhat is a Lugged Knife Gate Valve used for?
    A Lugged Knife Gate Valve is designed for industrial applications involving slurry, pulp, powder, and wastewater. It is widely used in mining, paper mills, chemical processing plants, and sewage treatment facilities where thick or solid-laden media must be controlled efficiently.
    QWhat is the difference between a lugged and a wafer knife gate valve?
    A lugged knife gate valve has threaded inserts (lugs) on the valve body, allowing it to be bolted directly to the pipeline flanges on both sides. This makes it suitable for end-of-line service and allows one side of the piping to be removed without disturbing the other. A wafer-type valve, by contrast, is clamped between two flanges without threaded lugs.
    QWhat actuation options are available for this knife gate valve?
    The Lugged Knife Gate Valve is available with three actuation options: manual handwheel for on-site operation, pneumatic actuator for automated or remote control, and electric actuator for integration into automated control systems. The choice depends on your system requirements and operational environment.
    QWhat materials are used for the body and disc of the knife gate valve?
    The valve body is made from Ductile Iron for strength and durability, while the disc (gate blade) is manufactured from 316 stainless steel, offering excellent corrosion resistance. The sealing components use NBR or EPDM materials, and the packing is made from PTFE for chemical compatibility and long service life.
    QWhat international standards does this knife gate valve comply with?
    All knife gate valves are manufactured in accordance with international standards including DIN and ISO. Each valve is pressure-tested and thoroughly inspected before shipment to ensure consistent performance, safety, and reliability in demanding industrial environments.
    QWhat size range is available for the Lugged Knife Gate Valve?
    The Lugged Knife Gate Valve is available in sizes from DN65 to DN300 (and beyond upon request). The dimensional specifications including face-to-face length (L), flange diameter (D), bolt circle diameter (D1), and overall height (H) vary by size and are detailed in the dimensions table above.

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