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STOP LOG series by WEY Sistag

Seal on Three Sides. Secure on All Fronts. 
Master flow management with the WEY Stop Log system. Offered exclusively by dealer LINDER, these aluminum logs are paired with bespoke stainless steel frames for a flawless, leak-tight 3-side seal under any pressure from either direction. The benchmark for variable sewer blocking.

Application areas
Flood protection, Infrastructure, Waste water treatment plants, Water treatment

Characteristics STOP LOG series

Design
Stop log
Width
500 – 6400 mm
Head of water
0.15 – 6 m
Material
Aluminium, Stainless steel, Special material
Handwheel
Handwheel
Bevel gear
Bevel gear
Pneumatic cylinder
Pneumatic cylinder
Hydraulic cylinder
Hydraulic cylinder
Electric actuator
Electric actuator

Details

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Installation in a concrete channel
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Sturdy stainless steel frame
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Reinforced stainless steel knife

About STOP LOG series by WEY Sistag

Swiss Precision in Water Management: WEY SISTAG Engineered Solutions Exclusively in Turkey via LİNDER

In industrial and municipal infrastructure where water control transcends basic functionality to become a critical safeguard for assets, communities, and the environment, compromise is not an option. LİNDER ENDÜSTRİ DIŞ TİCARET LİMİTED ŞİRKETİ is proud to serve as the official and exclusive dealer in Turkey for the renowned Swiss manufacturer WEY SISTAG. We provide Turkish industry with direct access to a superior echelon of hydraulic engineering, specializing in the supply, engineering, and integration of their custom-made water control gates and valve systems. These solutions represent the perfect synergy of legendary Swiss precision, rugged durability, and application-specific performance, with the WEY SISTAG Stop Log Series standing as a paradigm of intelligent, reliable containment technology.

The WEY SISTAG Standard: Engineering Beyond Conventional Limits

WEY SISTAG embodies the pinnacle of Swiss hydraulic engineering, built on a foundational philosophy that standard, off-the-shelf solutions are inadequate for critical, high-stakes applications. The company’s global reputation is rooted in proprietary, patented designs and innovative architectural principles that optimize stress distribution and material performance, ensuring unparalleled structural integrity under extreme static and dynamic loads.

This meticulous engineering approach translates directly into equipment with a demonstrably extended service lifecycle, transforming a capital expenditure into a long-term strategic investment. It delivers measurable returns through enhanced operational safety, guaranteed continuity, and a significantly reduced total cost of ownership. From compact sluice gates to large-scale radial weirs, the entire WEY SISTAG portfolio is engineered to deliver 100% tight, bidirectional sealing—a non-negotiable standard for protecting critical infrastructure, industrial plants, and water treatment facilities.

In-Depth Focus: The Engineered Excellence of the WEY SISTAG Stop Log Series

Designed for precise, temporary, or adjustable flow regulation in channels, overflow weirs, and treatment plant inlets, the WEY SISTAG Stop Log system exemplifies flexible yet uncompromising water management. Its core value lies in a fully custom-engineered design and exceptional, guaranteed sealing integrity.

Custom-Engineered for Perfect Integration & Performance

WEY SISTAG’s primary strength is its commitment to bespoke manufacturing. Unlike generic solutions, every installation frame is custom-fabricated from premium, corrosion-resistant materials like stainless steel (e.g., grade 1.4404/316L). These frames feature integrated, precision-engineered pressing devices to ensure a perfect, secure, and permanent fit within your specific channel geometry. The stop log elements themselves are precision-crafted from high-strength, marine-grade aluminum alloys or other specified materials, built to exact project dimensions for a flawless, leak-proof interface.

Triple-Side, Bidirectional Sealing Technology

The defining feature of the system is its achievement of a 100% tight, bidirectional seal on three sides. This critical patented design ensures absolute containment whether hydraulic pressure is applied from the upstream or downstream direction. This makes it an indispensable and reliable solution for complex applications such as coastal flood protection, tidal barriers, pumping stations, and intricate hydraulic circuits where flow direction may vary or reverse, eliminating the risk of uncontrolled water ingress.

Unmatched Application Versatility Across Industries

Engineered for a wide spectrum of hydraulic heads, these robust systems provide reliable, long-term solutions for diverse critical challenges: urban and coastal flood defense and protection barriers, efficient management of wastewater, rainwater, and industrial effluent in major infrastructure projects, and precise flow control, diversion, and isolation within potable water, process water, and advanced wastewater treatment plants (WWTPs).

The Science of Longevity: Superior Materials and Advanced Actuation

Superior durability and low maintenance are not incidental but are engineered into every component through strategic material science and versatile actuation options.

Premium, Corrosion-Resistant Materials for Harsh Environments

The systematic use of stainless steel (1.4404/AISI 316L) for all critical structural components guarantees exceptional longevity even in aggressive, saline, or chemically challenging environments. Seal options are meticulously selected for the duty: standard NBR (Nitrile Butadiene Rubber) offers excellent general-purpose resistance, while for applications demanding superior abrasion resistance, extreme temperatures, or specific chemical compatibility, advanced alternatives like PU (Polyurethane), EPDM, or Fluorocarbon (Viton) are available upon expert consultation to ensure optimal performance and lifespan.

Complete Actuation System Flexibility for Modern Operations

For seamless integration into any operational philosophy—from manual local control to fully automated smart plants—the stop logs are compatible with a comprehensive range of actuators. Options include manual handwheels, bevel gear operators for high-torque applications, and a full suite of powered systems (pneumatic, hydraulic, and electric actuators). This ensures optimal control, adaptability to your existing SCADA, PLC, and building management systems, and enables remote monitoring and operation for enhanced efficiency and safety.

Why LİNDER is Your Strategic Partner for WEY SISTAG in Turkey

Choosing LİNDER ENDÜSTRİ DIŞ TİCARET LİMİTED ŞİRKETİ as your conduit to genuine WEY SISTAG technology delivers significant, tangible advantages for projects within Turkey and for Turkish investments in the broader region.

Official Authorization & Direct Technical Pipeline

As the official Turkish dealer, we provide not just products, but direct, unfiltered access to the manufacturer’s core engineering expertise, original spare parts, and continuous technical support. This ensures you benefit from the latest innovations, authentic certifications, and decades of accumulated application knowledge.

Local Engineering Support with Swiss Precision Standards

Our in-house team of experienced engineers and technical specialists bridges the gap between Swiss precision and local project requirements, regulations, and conditions. We engage from the conceptual design and tender phase, providing detailed technical calculations, CAD drawings, and specifications to ensure the selected or custom-configured system meets your exact hydraulic, spatial, and operational demands.

End-to-End Project Lifecycle Management

LİNDER assumes full project responsibility: from initial consultancy and feasibility studies, through detailed engineering, timely supply, and customs clearance, to on-site installation supervision, commissioning support, and comprehensive after-sales service and maintenance programs. We ensure a seamless, single-point-of-contact implementation.

Proven Track Record in Turkey’s Critical Sectors

Our supplied WEY SISTAG solutions are actively and reliably deployed across Turkey’s key industries and infrastructure projects, including major flood protection schemes and dam infrastructure, municipal water and wastewater treatment plants, industrial water management for mining, chemicals, and power generation, and large-scale public infrastructure projects, where failure is not an option.

Invest in Operational Security with Certified Swiss Engineering

In critical water management, the potential cost of system failure—measured in environmental impact, catastrophic asset damage, production stoppages, and reputational harm—dwarfs the investment in proven, superior technology. The WEY SISTAG Stop Log Series, delivered and supported exclusively by LİNDER in Turkey, represents more than just equipment; it is a strategic investment in the resilience, safety, and sustainability of your infrastructure.

This powerful partnership offers a holistic solution defined by custom engineering, patented durability, and absolute sealing confidence. It moves beyond simple procurement to establishing a cornerstone of sustainable, secure, and efficient operations for decades to come.

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 technical consultation, detailed specifications, and a competitive offer for the WEY SISTAG Stop Log Series and other premium industrial valve solutions.