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TI3 series by WEY Sistag

Engineered for Isolation. Nothing Else. 
Stop using compromises. Through LINDER, the Swiss company WEY presents the TI3 Series: the only isolating valve purpose-built for transmitter isolation. Its unique design, featuring a standard 1/2″ socket drive, delivers unmatched reliability where adapted standard valves fall short.

Application areas
Pulp and paper industry.

Characteristics TI3 series

Nominal sizes
DN 80 mm
Pressure rating
PN 0 – 10 bar
Material
Stainless steel
Flange drilling
ANSI Class 150
Face to face dimension
MSS-SP81
No special ratchet wrench required for operation
No special ratchet wrench required for operation
Uses standard 1/2" socket drive
Uses  standard 1/2" socket drive
Removable urethane yoke cover
Removable urethane yoke cover

Details

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Close-coupled tank flange with special flange bolt pattern.
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Model TI3 transmitter valve mounted on tank flange.
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Differential pressure transmitter mounted to model TI3 isolation valve.
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Optional flushing ports in any of four locations. Permits cleaning of seat area to ensure tight shut-off.
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Provision for OSHA lock-out in closed position furnished as standard.
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Provision for OSHA lock-out in open position furnished as standard.

About TI3 series by WEY Sistag

WEY SISTAG TI3 Series: The Ultimate Transmitter Isolation Valve | Official Supply by LINDER in Turkey

In the demanding world of industrial process control, where precision and reliability are non-negotiable, valve failure represents a critical point of vulnerability. Compromised isolation leads directly to inaccurate measurements, significant safety hazards, and costly, unplanned downtime. As the official dealer and technical partner of WEY SISTAG in Turkey, LİNDER ENDÜSTRİ DIŞ TİCARET LİMİTED ŞİRKETİ presents the definitive solution engineered to eradicate compromise: the TI3 Series isolating valve. This is not a modified standard valve; it is a purpose-built instrument, born from Swiss precision engineering, designed to perform one critical function with absolute, unwavering reliability: isolating pressure transmitters and safeguarding your measurement integrity.

LINDER: Your Authorized Gateway to Swiss Valve Engineering in Turkey

LİNDER ENDÜSTRİ DIŞ TİCARET LİMİTED ŞİRKETİ stands as the essential bridge between Turkey’s dynamic and robust industrial sector and the pinnacle of European valve manufacturing excellence. Our exclusive, certified partnership with WEY SISTAG empowers us to deliver far more than just products; we provide certified performance guarantees, direct factory-level engineering support, and a secure, guaranteed supply chain for the nation’s most critical infrastructure and industrial projects.

Choosing to source WEY SISTAG valves through LINDER is a decision for authenticity, complete traceability, and the full backing of the manufacturer’s expertise, seamlessly localized for the specific demands and standards of the Turkish market. We ensure that every valve meets the original specifications and is supported by comprehensive technical documentation and local stock availability where possible.

TI3 Series: The Philosophy of Singular Purpose

Engineered for Isolation. Nothing Else.

Why jeopardize a critical process with a valve merely adapted from general service applications? The WEY SISTAG TI3 Series represents the culmination of focused, specialized engineering, designed exclusively for transmitter isolation. Its unique, patented architecture proactively addresses every inherent weakness found in adapted gate or globe valves, ensuring leak-tight integrity over the long term, enhanced operational safety, and unmatched longevity. It performs flawlessly in the most aggressive environments, from high-pressure chemical injection skids in Oil & Gas to the caustic, high-temperature processes within pulp mill digesters.

Primary Industrial Application Areas

The TI3 Series is an indispensable component in industries where precise and reliable pressure measurement is critical to process control, operational safety, environmental compliance, and final product quality. Its robust design excels across a broad spectrum of critical applications:

Pulp and Paper Industry

Essential for the isolation of transmitters on chemical feeding lines, bleach plants, black liquor recovery, and continuous digester pressure monitoring systems, resisting corrosive pulping chemicals.

Oil & Gas Production & Refining

Trusted for wellhead instrumentation, separator level control, chemical inhibitor injection point isolation, and pipeline pressure monitoring, offering reliability in remote and harsh conditions.

Chemical & Petrochemical Processing

Provides vital protection for sensitive transmitters from highly corrosive, toxic, or hazardous process media in reactors, distillation columns, high-pressure pipelines, and storage facilities.

Power Generation (Thermal & Renewable)

Crucial for isolating transmitters on feedwater systems, main steam lines, condensate systems, and cooling circuits, ensuring accurate boiler control and turbine protection.

Water & Wastewater Treatment

Ensures reliable isolation for transmitters monitoring filter pressure, pump discharge, chemical dosing stations, and membrane systems in both municipal and industrial treatment plants.

Mining & Mineral Processing

Used in slurry transportation lines, thickener control, and hydrometallurgical process plants where abrasion and scaling are common challenges.

Technical Characteristics & Design Advantages of the TI3 Series

Core Specifications

  • Nominal Size: DN 80 mm
  • Pressure Rating: PN 0 – 10 bar
  • Standard Material: Stainless Steel (AISI 316/1.4401). Other alloys (Duplex, Hastelloy) available for specific corrosive services.
  • Flange Drilling: ANSI Class 150, ensuring global interchangeability and easy integration into existing piping systems.
  • Face-to-Face Dimension: Compliant with MSS-SP81, allowing for direct, drop-in replacement without costly piping modification.
  • Temperature Range: Designed to perform across a wide operational temperature spectrum suitable for most industrial processes.

Unmatched Operational & Safety Features

Simplified Maintenance & Universal Operation

No Special Tools Required: Eliminates dependency on proprietary wrenches or kits. The valve operates with a standard 1/2″ socket drive—a tool available in any maintenance toolkit worldwide. This drastically reduces intervention time and eliminates downtime waiting for specialized tools.

Enhanced Durability & Environmental Protection

Removable Urethane Yoke Cover: This innovative feature shields the critical threaded stem from environmental contaminants such as dust, moisture, salt spray, and corrosive chemical splash. It dramatically extends the valve’s service life and maintenance intervals, especially in outdoor or harsh plant environments.

Guaranteed Tight Shut-Off & Cleanability

Optional Flushing Ports (Available in 4 positions): These ports allow for direct, in-line cleaning or purging of the seat area. This ensures that any accumulated process media, polymer, or debris can be effectively flushed out, restoring and guaranteeing a bubble-tight seal—absolutely critical for safe transmitter removal, calibration, and replacement.

Compliance & Personnel Safety

Integrated OSHA Lock-Out / Tag-Out (LOTO) Provision (Standard): The valve is furnished with standardized provisions for safety padlocks in both the fully closed and fully open positions. This built-in safety feature is essential for complying with stringent international workplace safety regulations (OSHA, EU directives) and is vital for protecting personnel during maintenance or inspection operations.

Optimized, Robust Installation

Close-Coupled Tank Flange Design: Features a dedicated flange bolt pattern for direct, secure mounting to vessel or tank nozzles. This compact, rigid connection minimizes potential leak paths, reduces stress on the transmitter, and increases overall system integrity compared to traditional, lengthy piped installations.

Seamless System Integration & Measurement Stability

The TI3 valve is engineered as the cornerstone of a reliable and stable measurement chain. Its design facilitates direct mounting via the tank flange, with the valve body itself providing a solid, vibration-dampening base for the differential pressure transmitter. This integrated “stack” configuration significantly reduces potential failure points (welds, threads, additional gaskets), improves measurement signal stability by minimizing pulsation effects, and creates a neat, compact, and professionally finished installation.

Procure with Confidence Through Your Authorized Partner

Selecting the WEY SISTAG TI3 Series through LİNDER ENDÜSTRİ DIŞ TİCARET LİMİTED ŞİRKETİ is more than a simple purchase; it is a strategic investment in long-term process reliability, personnel safety, and operational cost savings. Our in-house engineering team provides direct, application-focused technical consultation, ensuring the correct material selection, configuration, and ancillary equipment for your specific service conditions.

We support you from initial concept and specification through installation and after-sales service, ensuring optimal performance throughout the valve’s lifecycle.