INDUSTRY-LEADING LIQUID-TIGHT PROTECTION

T&B Liquidtight Systems provides the widest range of flexible metallic conduits, application solutions and trade sizes in the electrical installation marketplace, backed by decades of Thomas & Betts engineering excellence.

 

As part of ABB Installation Products division, T&B Liquidtight Systems builds on the Thomas & Betts legacy of innovation and quality. The comprehensive product line includes flexible metallic conduit (FMC), liquidtight flexible metallic conduit (LFMC), and liquidtight flexible non-metallic conduit (LFNC) systems. Each solution is engineered to perform in demanding applications including industrial environments, data centers, food processing facilities, and installations requiring corrosion resistance, oil resistance, extreme temperature tolerance, halogen-free specifications, or food-grade compliance.

 

T&B Liquidtight Systems offers the industry's widest range of trade sizes from 3/8" to 6" (12mm to 155mm), providing complete flexibility for any application requirement. The product portfolio includes specialized solutions for general purpose, food and beverage, stainless steel, halogen-free/low fire hazard, computer blue, aluminum, wide and extreme temperature, EMI/RFI shielding, and hazardous location/heavy duty applications. This comprehensive range ensures contractors, engineers, and facility managers can specify the exact solution needed for their specific environmental and performance requirements. As part of ABB, T&B Liquidtight Systems benefits from global manufacturing capabilities, rigorous quality control, and comprehensive technical support while maintaining the trusted performance that professionals have relied on for generations.

COMPREHENSIVE SYSTEM SOLUTIONS FOR EVERY ENVIRONMENT

T&B Liquidtight Systems delivers complete system solutions beyond just conduit. The comprehensive offering includes FMC, LFMC, and LFNC conduit plus a full range of fittings—connectors, couplings, cord grips, strain relief devices, and cable entry plates. This integrated approach ensures compatibility, simplifies specification, and reduces installation time. Every component is engineered to work together seamlessly, providing reliable liquid-tight protection with ingress ratings that match enclosure system requirements per UL50/50E, CSA, and IEC IP standards.

 

The highest quality liquid-tight fittings include steel/malleable iron, aluminum, stainless steel, high temperature, brass nickel-plated, and push-in variants. Flexible metallic conduits feature the highest quality cores with smooth extruded jackets that resist abrasion and environmental damage. Global approvals and certifications including UL, CSA, CSA HD, IEC/EN, CE, and RoHS ensure worldwide code compliance and project acceptance. Comprehensive technical documentation and time-saving selection tools support efficient specification and installation. Whether protecting cables in corrosive chemical plants, extreme temperature industrial processes, food processing washdown environments, or sensitive data center installations, T&B Liquidtight Systems provides engineered solutions that deliver reliable performance throughout the product lifecycle.

WIDEST RANGE MEETS MOST DEMANDING APPLICATIONS

T&B Liquidtight Systems stands apart with the industry's widest range of trade sizes from 3/8" to 6" (12mm to 155mm). This unmatched selection provides complete flexibility for any application, from small instrumentation circuits to large power distribution cables. Specialized product lines address specific industry requirements: food-grade materials for food and beverage processing, halogen-free compounds for low fire hazard applications, stainless steel for maximum corrosion resistance, and EMI/RFI shielding for sensitive electronic environments.

 

The Computer Blue line provides distinctive identification for data center and IT applications. Wide and extreme temperature solutions perform from arctic cold to industrial heat. Hazardous location and heavy-duty products meet CSA HD certification for the most demanding environments. This comprehensive portfolio eliminates the need to source components from multiple manufacturers, simplifying procurement, ensuring compatibility, and reducing project risk. T&B Liquidtight Systems serves diverse industries including chemical processing, oil and gas, food and beverage, pharmaceuticals, power generation, wastewater treatment, OEM equipment manufacturing, and commercial construction. The combination of product breadth, global certifications, and ABB technical support makes T&B Liquidtight Systems the preferred choice for contractors, engineers, and facility managers who demand reliable liquid-tight protection.

COMPLETE METALLIC CABLE PROTECTION SOLUTIONS

ABB's T&B Liquidtight Systems® provides global industrial solutions for Flexible Metallic Conduit (FMC) protection systems across a wide variety of application requirements. With ingress ratings that match enclosure system ingress ratings to provide long-lasting protection against corrosion, oils, chemicals, water hose down and more, these flexible metallic conduits and seal gaskets are ideal for connections with switchgear electrical enclosures, control cabinets, pushbutton stations and motor junction boxes.

WHY T&B LIQUIDTIGHT SYSTEMS? COMPLETE PROTECTION, PROVEN PERFORMANCE.

<p>Widest product range, global certifications, and reliable environmental protection for demanding applications.</p>

Widest Range Available

<p>Industry's widest range of trade sizes from 3/8&quot; to 6&quot; (12mm to 155mm) for complete flexibility in any application.</p>

Complete System Solution

<p>FMC, LFMC, LFNC conduit plus comprehensive fittings including connectors, couplings, cord grips, and strain relief in one system.</p>

Global Certifications

<p>UL, CSA, IEC/EN, CE, and RoHS approvals with ingress protection ratings ensure worldwide code compliance.</p>

Highest quality liquid-tight fittings

<p>Including steel/malleable iron, aluminum, stainless steel, high temperature, brass nickel-plated, and push-in variants.</p>

HOW WE HELP

Products

T&B Liquidtight Systems® Flexible Metallic Liquidtight Conduits and Fittings

One of the widest ranges of flexible metallic conduits, application solutions and trade sizes in the electrical installation marketplace.

T&B Liquidtight Systems® Flexible Non-Metallic Conduits and Fittings

ABB offers T&B Liquidtight Systems flexible non-metallic conduit and fitting solutions, a complete portfolio of Type A and Type B systems engineered to deliver reliable liquid-tight cable protection across general-purpose, food and beverage and other demanding installation environments

T&B Liquidtight Systems® Cable Entry Plates

Organize, route and protect multiple cables while maintaining ingress protection.

INDUSTRIES WE SUPPORT

From residential construction to commercial and industrial projects, our products support professionals across diverse industries.

Power distribution, Panel builder OEMs, Heavy industry, Commercial buildings, Marine, Ports, Process industries, Food and beverage, Pharmaceutical, Mass transit, Data centers

ABB ECO SOLUTIONS™ PRODUCTS

<p>Our ABB EcoSolutions™ product portfolio helps customers and partners make more sustainable decisions. Each product’s circularity value and environmental impact are fully transparent. We are continuously partnering across the value chain to innovate and expand our EcoSolutions portfolio.</p>

FREQUENTLY ASKED QUESTIONS

T&B Liquidtight Systems provides flexible conduit and fitting solutions that protect electrical cables from moisture, oil, chemicals, and environmental contaminants. Used in industrial, commercial, and specialized applications, these systems deliver reliable liquid-tight protection in demanding environments including manufacturing facilities, food processing plants, chemical plants, and outdoor installations.

T&B Liquidtight Systems offers the industry's widest range of trade sizes from 3/8" to 6" (12mm to 155mm). This comprehensive selection covers small instrumentation circuits to large power distribution cables, providing complete flexibility for any application requirement. Multiple specialized product lines address specific environmental and performance needs.

T&B Liquidtight Systems products carry global approvals including UL, CSA, CSA HD (Heavy Duty), IEC/EN, CE, and RoHS certifications. System ingress protection ratings per UL50/50E, CSA, and IEC IP standards match enclosure requirements. These comprehensive certifications ensure worldwide code compliance and project acceptance.

T&B Liquidtight Systems offers comprehensive fittings including connectors, couplings, cord grips, strain relief devices, and cable entry plates. Materials include steel/malleable iron, aluminum, stainless steel, high temperature alloys, brass nickel-plated, and push-in variants. All fittings are engineered to work seamlessly with T&B conduit systems.