Jianqiao Valve Industry Group Co., Ltd. Jianqiao Valve Industry Group Co., Ltd.
Sprocket driven knife gate valve

Sprocket driven knife gate valve

Sprocket driven knife gate valve

Sprocket driven knife gate valve

Sprocket driven knife gate valve

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The Sprocket Driven Knife Gate Valve is designed for industrial pipelines handling slurry, pulp, and abrasive or fibrous media. Its chain-wheel mechanism allows easy manual operation of large valves with minimal effort. High-strength, corrosion-resistant materials ensure reliable sealing, long-term durability, and low-maintenance performance in mining, chemical, and wastewater systems.

Sprocket driven knife gate valve

The Sprocket Driven Knife Gate Valve combines a sharp knife-edge gate with a sprocket-and-chain manual operating system, enabling precise flow control in abrasive or particle-laden pipelines. The valve is suitable for large diameters, heavy-duty service, and high-viscosity slurries.

The robust body and gate materials resist wear, corrosion, and clogging. The valve supports manual, pneumatic, or electric actuator options for automation. Flanged, wafer, and lug connection types allow versatile installation. OEM customization includes special materials, seat configurations, and chain-wheel gear ratios.

Key Features

  • Sprocket and chain-wheel operation for large valves
  • Sharp knife gate for solids and abrasive media
  • Bi-directional or uni-directional sealing
  • Corrosion- and abrasion-resistant construction
  • Reliable on/off operation for heavy-duty pipelines
  • Low-maintenance and long service life
  • Compact and robust body design
  • Full bore, low-pressure drop
  • Manual, pneumatic, or electric operation compatible
  • OEM customization available

OEM & Customization Capabilities

OEM Service Scope

  • Custom valve sizes (DN100–DN1200)
  • Pressure ratings PN10–PN40
  • ANSI, DIN, JIS, BS flange standards
  • Custom face-to-face dimensions
  • Special anti-corrosion and wear-resistant coatings
  • Customer logo casting or engraving
  • Chain-wheel gear ratio customization
  • Actuator interface for automation
  • Third-party inspection and testing
  • Export-grade packaging

Customizable Options

  • Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Ductile Iron
  • Gate Materials: Stainless Steel, Hardfaced Alloy Steel, Wear-Resistant Steel
  • Seat Types: EPDM, NBR, PTFE, Metal Seat
  • Operation: Chain-wheel, Manual Handwheel, Pneumatic, Electric
  • Optional: Fire-safe, Anti-static, High-temperature, Cryogenic

Certifications

  • ISO 9001 Quality Management System
  • API 609 Knife Gate Valve Standard
  • API 598 Inspection & Testing
  • CE Certification
  • PED 2014/68/EU
  • ISO 15848 Fugitive Emission Certification
  • NACE MR0175 / ISO 15156 Compliance
  • ATEX Certification (Optional)
  • SGS / BV / TUV Third-Party Inspection Available

Sprocket driven knife gate valve

 

Parameter Specification
Product Name Sprocket Driven Knife Gate Valve
Nominal Size DN100 – DN1200 (4" – 48")
Pressure Rating PN10 – PN40
ANSI Class Class 150 – Class 300
Body Material Carbon Steel, Stainless Steel, Alloy Steel, Ductile Iron
Gate Material Stainless Steel, Hardfaced Alloy, Wear-Resistant Steel
Seat Material EPDM, NBR, PTFE, Metal Seat
Connection Type Flanged, Wafer, Lug
Operation Sprocket-Chain, Manual, Pneumatic, Electric
Temperature Range -20°C to +250°C
Sealing Type Bi-directional / Uni-directional
Leakage Standard API 598 / ISO 5208 Class A
Design Standard API 609, ASME B16.34
Applicable Media Slurry, Pulp, Wastewater, Chemicals, Abrasive Fluids

Sprocket driven knife gate valve

Mining & Mineral Processing

Controls abrasive slurries, tailings, and pulp pipelines with large-diameter valves.

Water & Wastewater Treatment

Manages sludge, wastewater, and chemical dosing pipelines in heavy-duty installations.

Chemical & Petrochemical Industry

Handles viscous and corrosive slurries in process lines.

Pulp & Paper Industry

Regulates pulp stock, effluent, and processing slurry pipelines.

Industrial Slurry Systems

Supports large-scale slurry transportation in manufacturing plants.

Power & Utility Plants

Used in ash handling, cooling water, and condensate slurry systems.

Material customization plan

Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.

Structural optimization design

For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.

Interface standard adaptation

Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.

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