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Flanged Slurry Knife Gate Valve Manufacturers

Heavy-Duty Flanged Slurry Knife Gate Valves for High-Pressure Isolation

Our Flanged Slurry Knife Gate Valves are designed for the most demanding pipeline conditions where mechanical stability and leak-proof performance are non-negotiable. Unlike wafer versions, the flanged design provides independent bolting to each pipe flange, making it safer for maintenance and more resistant to pipeline vibration. As a specialized manufacturer, we utilize a full-port, bi-directional design with heavy-duty reinforced sleeves that expand against the gate, ensuring zero leakage even in high-concentration mining slurries and abrasive tailing lines.

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 - DN1400 (2" to 56")
End Connection Full Flanged (ASME B16.5, DIN, JIS, AS2129)
Pressure Rating PN10, PN16, PN25, ANSI 150/300#
Body Material Ductile Iron, Cast Steel, Stainless Steel
Sleeve Tech Natural Rubber with internal high-strength core

Primary Applications

  • Large-scale Mining Tailing Lines
  • Coal Slurry Preparation & Washing
  • Industrial Wastewater & Sludge
  • Power Plant FGD (Flue Gas Desulfurization)

Core Advantages

  • Enhanced Safety: Independent flanged connections prevent valve displacement during pipe maintenance.
  • Full Bore Design: Zero turbulence and minimal pressure drop across the valve.
  • Rugged Durability: Ideal for large-diameter and high-pressure applications where wafer valves may flex.

Logistics & Payment

Payment terms: T/T, L/C at sight, or DP. Given the size and weight of flanged valves, we utilize heavy-duty export plywood crates with internal steel reinforcement. We provide all necessary export documentation, including Mill Test Certificates (MTC) and Pressure Test Reports.

Frequently Asked Questions

  • Why choose a flanged slurry valve over a wafer type?
  • Flanged valves are more robust for large diameters and higher pressures. They also allow for the downstream pipe to be removed while the valve remains securely bolted to the upstream flange.
  • Are your flanged valves bi-directional?
  • Yes, our flanged slurry knife gate valves are 100% bi-directional, meaning they seal perfectly regardless of the flow direction.

Maintenance & Installation Guide

For flanged slurry valves, proper Bolt Torque Sequencing is essential. Because the rubber sleeves act as the flange gasket, over-tightening one side can lead to uneven compression and premature sleeve failure. We recommend a "star-pattern" tightening method. Additionally, for installations in abrasive lines, we advise rotating the sleeves 180° during annual maintenance to double the service life of the elastomer components.

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 Flanged Slurry Knife Gate Valve manufacturer and Flanged 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 Flanged 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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