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Manual Slurry Knife Gate Valve Manufacturers

Heavy-Duty Manual Slurry Knife Gate Valves for Abrasive Media

Our Manual Slurry Knife Gate Valves are engineered specifically for the isolation of thick slurries and abrasive fluids. Unlike standard gate valves, our design features high-quality elastomer sleeves that provide a 100% bi-directional bubble-tight shut-off. The full-port design minimizes pressure drop and turbulence, ensuring that the gate can cut through high-density solids without clogging. Designed for manual operation via handwheel or bevel gear, these valves are the backbone of mineral processing and coal washing plants.

Featured Products

  • Closed Body Pinch Valve

    Closed Body Pinch Valve

    The operating principle of the FNC® enclosed pinch valve is straightforward. When in the open position, the valve provides a full-bore passage, allowing unrestricted flow of the me...

  • Standard Air Operated Pinch Valves

    Standard Air Operated Pinch Valves

    Air Operated  pinch valves offer a unique and cost-effective solution for fluid control problems. The secret lies in the rubber valve sleeve - the only flow-through part of the pne...

  • Large Diameter Pinch Valves

    Large Diameter Pinch Valves

    Compared to ordinary pinch valves, large-diameter pinch valves have much higher production requirements. As the “core component” of the pinch valve, the rubber valve sleeve demands...

  • Open Body Pinch Valves

    Open Body Pinch Valves

    The operating principle of the FNC® enclosed pinch valve is straightforward. When in the open position, the valve provides a full-bore passage, allowing unrestricted flow of the me...

  • Mini Air Operated Pinch Valves

    Mini Air Operated Pinch Valves

    Air Operated  pinch valves offer a unique and cost-effective solution for fluid control problems. The secret lies in the rubber valve sleeve - the only flow-through part of the pne...

  • Split-Body Air Operated Pinch Valves

    Split-Body Air Operated Pinch Valves

    Air Operated  pinch valves offer a unique and cost-effective solution for fluid control problems. The secret lies in the rubber valve sleeve - the only flow-through part of the pne...

  • Large Diameter Air Operated Pinch Valves

    Large Diameter Air Operated Pinch Valves

    Air Operated  pinch valves offer a unique and cost-effective solution for fluid control problems. The secret lies in the rubber valve sleeve - the only flow-through part of the pne...

  • KGV-D knife gate valves

    KGV-D knife gate valves

    The FNC Slurry Knife Gate Valve is compatible with a variety of actuators. Its main body is constructed from materials such as cast iron, cast steel, and stainless steel. The gate ...

  • KGV-A knife gate valves

    KGV-A knife gate valves

    The FNC Slurry Knife Gate Valve is compatible with a variety of actuators. Its main body is constructed from materials such as cast iron, cast steel, and stainless steel. The gate ...

Technical Specifications

Parameter Details
Size Range DN50 - DN900 (2" to 36")
Pressure Rating PN10, PN16, ANSI 150#
Body Style Wafer, Semi-lug, or Full-lug
Sleeve Material Natural Rubber (Standard), EPDM, Viton
Gate Material SS304, SS316, SS316L, 2205 Duplex

Primary Applications

  • Coal Preparation Plants
  • Mining and Mineral Tailings
  • Sand and Gravel Handling
  • Pulp and Paper Recycling

Core Advantages

  • Bi-directional Flow: Seals perfectly in both directions, simplifying installation.
  • Self-Cleaning: The gate stroke flushes particles away from the sealing area.
  • In-line Maintainability: Sleeves can be replaced without disassembling the entire valve body.

Logistics & Payment

We support T/T, L/C, and Western Union payments. Standard packaging involves fumigated plywood crates with internal moisture protection. We offer flexible shipping terms including FOB, CIF, and DDP to major global ports.

Frequently Asked Questions

  • Why is a slurry knife gate valve better than a standard knife gate valve?
  • Slurry versions use heavy-duty rubber sleeves instead of metal seats, which prevents the abrasive particles from damaging the sealing surface.
  • Can the handwheel be replaced with a gear operator?
  • Yes, for valves larger than DN250, we recommend a bevel gear operator to reduce the manual torque required for operation.

Material Selection Advice

In highly abrasive mining environments, we recommend specifying 2205 Duplex Stainless Steel for the gate material. While standard SS304 is sufficient for water treatment, the high chloride and solid content in mining slurries require the superior pitting resistance of Duplex to prevent premature gate failure.

Note: Specifications are subject to change. For specific torque values and chemical compatibility, please refer to the technical data sheet provided with your order.

Anhui Fengchi Pump Valve Manufacturing
Co., Ltd.

Anhui Fengchi Pump Valve Manufacturing Co., Ltd. is a national High-Tech Enterprise specializing in premium fluid control solutions for harsh industrial environments. We are a leading Custom Manual Slurry Knife Gate Valve manufacturer and Manual Slurry Knife Gate Valve supplier, designed specifically to handle abrasive, corrosive, and high-density media.

Our facility is equipped with large-scale vulcanization and rubber refining technology, allowing us to maintain full control over the quality of our proprietary wear-resistant sleeves. as Manual Slurry Knife Gate Valve factory, Fengchi holds numerous patents and has successfully passed ISO9001:2015, ISO14000, CE, and RoHS international certifications.

Trusted by major mining and chemical plants worldwide, our products serve as the ultimate cost-effective alternative to conventional valves. We don't just sell products; we provide customized fluid control solutions to minimize downtime and maximize operational efficiency for our global partners.

Anhui Fengchi Pump Valve Manufacturing Co., Ltd.

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