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Home / Catalog / Valves, Joints & Compensator / Knife Gate Valves / VK series by WEY Sistag

VK series by WEY Sistag

Break the Round Valve Limitation. Demand the Square Advantage.
LINDER delivers the WEY VK Series Knife Gate Valve. Engineered with a decisive square shape, it conquers applications where round valves cannot. This is the definitive solution for achieving absolute zero-leakage shut-off on rectangular and square flange connections. Stop adapting; start dominating with Swiss WEY engineering, available now through LINDER.

Application areas
Biogas plants, Mining, Chemical and petrochemical industries, Infrastructure, Coal fired power stations, Cement industry

Characteristics Details Downloads

Characteristics VK series

Nominal sizes
DN 200 – 1000 mm
Pressure rating
0 – 2.5 bar
Material
Stainless steel, Cast iron, Special material
Flange drilling
Special flange
Face to face dimension
Special length
Handwheel
Handwheel
Bevel gear
Bevel gear
Pneumatic cylinder
Pneumatic cylinder
Hydraulic cylinder
Hydraulic cylinder
Electric actuator
Electric actuator

Details

Detail image
Robust 4-post topwork for maximum load and a wide variety of actuator types.
Detail image
The gate is mechanically guided over the full stroke. Solids are flushed out through the recesses during closing.
Detail image
In the closed end position, the gate is also mechanically supported.

Downloads

General documents
Product brochure knife gate valves WEY Instruction manual VK Actuators and accessories Seal arrangement Lubricants Declaration of conformity PED Declaration of incorporation Machinery Directive Declaration of conformity Machinery Directive
Data sheets
VK with handwheel VK with pneumatic cylinder VK with electric actuator

About VK series by WEY Sistag

Square Knife Gate Valve VK Series by WEY Sistag: Zero Leakage Solutions for Turkish Industry

For demanding industrial applications requiring square or rectangular flange connections, conventional round valves consistently fall short. Discover the ultimate sealing solution engineered for uncompromising performance: the Knife Gate Valve VK Series by WEY Sistag. Available exclusively in Turkey through its official dealer, LİNDER ENDÜSTRİ DIŞ TİCARET LİMİTED ŞİRKETİ, this valve series is designed to master the most challenging environments—from abrasive slurry handling in mining to critical isolation duties in chemical processing and wastewater treatment.

As the authorized Turkish dealer for WEY Sistag, LİNDER provides far more than premium equipment. We deliver complete, certified industrial flow control solutions, backed by expert technical guidance, localized engineering support, and reliable after-sales service across Turkey and international markets.

Engineered for Excellence: The Square VK Series Knife Gate Valve

The VK Series represents a transformative leap in handling abrasive, viscous, and solid-laden media. Its unique square design eliminates the need for problematic adapters, providing a direct, secure, and flush connection to square or rectangular ducting systems where conventional round valves are impractical or impossible to install effectively. This innovative design is not merely an alternative—it’s the definitive solution for specialized industrial connections.

Why the VK Series is the Superior Choice for Critical Turkish Applications

In industries where leakage translates to lost product, environmental risk, operational hazard, or complete process failure, the VK Series establishes the new global benchmark for reliability and sealing integrity. It is the cornerstone of modern, efficient, and safe industrial infrastructure.

Key Advantages & Technical Innovations of the VK Series

Square/Rectangular Flange Design

The innovative square body facilitates direct, flush mounting on square or rectangular pipelines and equipment connections. This ensures a perfect fit, optimal flow characteristics, and completely eliminates the cost, complexity, and potential leak points associated with round-to-square adapters.

Absolute Zero Leakage Shut-Off

Recognized as the industry benchmark for bubble-tight sealing, even under minimal pressure differentials. The advanced, multi-component sealing mechanism guarantees complete process isolation, protecting sensitive downstream equipment and ensuring uncompromising environmental and operational safety.

Full-Stroke Mechanical Guidance System

The gate is precisely guided and supported throughout its entire stroke, preventing deflection, binding, and uneven wear. Strategically integrated recesses in the valve body allow trapped solids and particles to be flushed away during closure, preventing jamming and protecting the seal from abrasive damage.

Robust Construction for Maximum Longevity

Built around a heavy-duty, 4-post topwork design, the VK Series handles extreme mechanical and dynamic loads with ease. It is available in a comprehensive range of materials—including Cast Iron (EN-GJL-250) and Stainless Steel (1.4404/AISI 316L)—to withstand highly corrosive, abrasive, and demanding service conditions.

Advanced Corrosion Protection Coating

A state-of-the-art, multi-layer 2-component epoxy-polyamide and polyurethane coating system provides superior protection for the valve body and topwork. This engineered finish drastically extends service life in the most aggressive environments, such as chemical processing, mining, pulp & paper, and wastewater treatment plants.

Universal Actuation Compatibility

Designed for seamless integration into any control system, the VK Series supports all common actuator types: from manual handwheels and bevel gears to fully automated pneumatic, hydraulic, or electric actuators. This flexibility enables straightforward modernization and automation of process control systems.

Technical Specifications: VK Series at a Glance

  • Primary Applications: Biogas Plants, Mining & Mineral Processing, Chemical & Petrochemical Industries, Civil Infrastructure & Flood Control, Coal-Fired Power Stations, Cement & Aggregate Production, Pulp & Paper Mills.
  • Nominal Size Range: DN 200 – 1000 mm (Custom sizes available upon engineering request)
  • Pressure Rating: 0 – 2.5 bar
  • Flange Standard: Special Square/Rectangular Flange Configuration
  • Face-to-Face Dimensions: Special Length
  • Key Materials:
    • Body: Cast Iron (EN-GJL-250) or Stainless Steel (1.4404 / AISI 316L)
    • Gate: Stainless Steel 1.4301 (AISI 304) or Hard-Chromed 1.4404
    • Primary Seal: NBR (Nitrile Rubber) – Other advanced elastomers available (EPDM, Viton®, etc.)

Why Partner with LİNDER ENDÜSTRİ for Your WEY Sistag Valves in Turkey?

Selecting LİNDER ENDÜSTRİ DIŞ TİCARET LİMİTED ŞİRKETİ means investing in a strategic partnership defined by technical excellence, operational reliability, and deep local expertise. We serve as the vital bridge between world-class European engineering from WEY Sistag and your specific, on-the-ground operational needs in Turkey and surrounding regions.

Authorized Technical Expertise & Localized Support

Our team of certified engineers in Turkey provides in-depth application analysis, ensuring precise valve selection, seamless system integration, and proactive maintenance planning to maximize your asset lifecycle and return on investment.

Guaranteed Product Authenticity & Full Quality Assurance

As the official dealer, we supply only 100% genuine, factory-certified WEY Sistag products. Every delivery is accompanied by complete documentation, original certificates, and full warranty support, guaranteeing promised performance, durability, and compliance.

Custom-Engineered & Made-to-Order Solutions

Beyond the standard catalog, we specialize in providing customized valve solutions. We facilitate engineering for special materials, proprietary coatings, non-standard dimensions, and complex actuation packages tailored to conquer your unique process challenges.

Optimized Regional Supply Chain & Reduced Operational Downtime

Benefit from our strategic local stocking of critical components and our efficient, established logistics network. This ensures fast-track delivery, minimizes project delays, and drastically reduces potential operational downtime for your facilities.

Comprehensive Service from Conception to Commissioning

We offer a full-spectrum, turnkey service package: initial technical consultation, detailed engineering calculations, certified supply, professional installation supervision, on-site commissioning support, and lifelong after-sales service and parts supply.

Achieve Absolute Zero Leakage in Your Operations

Do not let incompatible connections or unreliable sealing compromise your industrial processes, safety, and profitability. The Square Knife Gate Valve VK Series by WEY Sistag, available through the exclusive Turkish dealer LİNDER, delivers the absolute zero-leakage performance required for modern, efficient, and safe industrial operations.

LİNDER ENDÜSTRİ DIŞ TİCARET LİMİTED ŞİRKETİ
Your Reliable Partner for WEY SISTAG in Turkey

Website: www.linder.com.tr
Email: sales@linder.com.tr
Phone: +90 544 720 0012

Contact our engineering department today for a comprehensive technical consultation, detailed product specifications, and a competitive offer for the WEY SISTAG VK Series and other premium industrial valve solutions.