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Applied Products: Industrail solutions 3: adhesives, assembly tools, automation

Longline Heating

Longline Heating

Industrial longline heating applications require long electrical circuit lengths, usually with a single electrical power point. Heating long pipelines for freeze protection, viscosity control, or temperature maintenance presents special requirements for electrical heat tracing. Tyco Thermal Controls provides a wide range of industry-proven solutions for these longline heating applications. Extreme longlines are usually transfer lines between processing plants or to storage or transportation facilities. Tank farms, piers for ocean transport vessels, & pipes between petrochemical facilities are all examples of applications for which longline heat tracing may be used. Even if a processing plant uses steam for in-plant heat tracing, electrical heat tracing may be beneficial for the transfer lines.

Longline tracing systems can be complex to design & install so call us for assistance.

  Skin Effect System Brochure - PDF (276kb)

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Mineral Insulated Heating Cables

Alloy 825 Mineral Insulated Heating Cables provide solutions for industrial freeze protection & process-temperature maintenance applications in hazardous & non-hazardous locations. MI is also used where high power output, high exposure temperatures, or extreme resistance to environmental corrosives are needed. MI heating cables can provide up to 82 watts per foot (269 watts per meter) of power output with area classification & design approvals. MI heating cables are constructed & approved for use in non-hazardous & hazardous (classified) areas. The maximum application temperature for heating units is 1022°F (550°C), & the maximum exposure temperature for the heating cable is 1238°F (670°C). Higher temperatures are available by special order.


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Self-Regulating Heating Cables

The LBTV family of Raychem self-regulating heating cables provides freeze protection & low-temperature maintenance for longline applications. The LBTV heating cables maintain process temperatures up to 150°F (65°C) & can withstand intermittent exposure to temperatures up to 185°F (85°C). The cables are configured for use in non-hazardous & hazardous (classified) locations, including areas where corrosives may be present. The LBTV heating cables provide long circuit length capability. They can be used for continuous circuit lengths up to 1125 feet powered from a single source. LBTV cables are especially well suited for tracing long pipelines containing temperature-sensitive fluids or where high reliability is required.

The SLBTV family of Raychem self-regulating heating cables provides freeze protection & low-temperature maintenance for longline applications. The SLBTV heating cables maintain process temperatures up to 150°F (65°C) & can withstand intermittent exposure to temperatures up to 185°F (85°C). The cables are configured for use in non-hazardous & hazardous (classified) locations, including areas where corrosives may be present. The SLBTV heating cables provide long circuit length capability. They can be used for continuous circuit lengths up to 2000 feet powered from a single source. SLBTV cables are especially well suited for tracing long pipelines containing temperature-sensitive fluids or where high reliability is required.

The VLBTV family of Raychem self-regulating cable provides basic freeze protection & low-temperature maintenance for longline applications. The VLBTV heaters can withstand continuous exposure to temperatures up to 150°F (65°C), & are configured for use in hazardous (classified) locations, or in areas exposed to corrosives. VLBTV provides very long circuit length capability. It can be used for continuous circuit lengths of 1000 to 12,000 feet, powered from a single source. VLBTV is especially well suited for tracing long pipelines containing temperature-sensitive fluids.

The VLKTV family of Raychem self-regulating cable provides high-temperature maintenance for longline applications. VLKTV can also be used to provide low-temperature maintenance for longlines that are exposed to high temperatures. The VLKTV heater can withstand continuous exposure to temperatures up to 300°F (150°C), & intermittent exposure to 420°F (215°C). The cables are configured for use in non-hazardous & hazardous (classified) locations, including areas where corrosives may be present. VLKTV2-CT provides very long circuit length capability. It can be used for continuous circuit lengths of 1000 to 6000 feet, powered from a single source. VLKTV is especially well suited for tracing long pipelines containing temperature-sensitive fluids or where extreme heater reliability is required.


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Series-Resistance Heating Cables

SC & SC/H cables provide electrical freeze protection & high temperature maintenance for long pipelines in both non-hazardous & hazardous (classified) locations or & in areas exposed to corrosives or aqueous organic chemicals. SC & SC/H technology provide basic freeze protection & high-temperature maintenance for longline applications. This series-resistance type heating cable can withstand continuous exposure to temperatures up to 482°F (250°C). SC/F technology is designed for low heat loss, freeze-protection applications only. All SC heating cables can be used for continuous circuit lengths of 1000 up to 12,000 feet, powered from a single source.


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Skin Effect Systems

The STS (skin-effect tracing) system is ideally suited for long transfer pipelines up to 12 miles (20 km) per circuit. The system is engineered for the specific application. In the STS heating system, heat is generated on the inner surface of a ferromagnetic heat tube that is thermally coupled to the pipe to be heat traced. An electrically insulated, temperature-resistant conductor is installed inside the heat tube & connected to the tube at the far end. The tube & conductor are connected to an AC voltage source in a series connection. This method of heating is called skin-effect heating because the return path of the circuit current is pulled to the inner surface (approximately 1 mm) of the heat tube by both the skin effect & the proximity effect between the heat tube & the conductor.
The Tyco Thermal Controls skin-effect tracing system minimizes the number of power supply points required by offering the longest circuit lengths available to the industry.


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Installation Operation & Maintenance Manuals (PDF)


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Pyrotenax


Established in 1949, Pyrotenax quickly became a leader in the field of manufacturing mineral-insulated cables & accessories for the wiring, heating, & temperature measurement industries. Currently, their applications include critical circuit cables for petrochemical, commercial, & industrial processing; critical life-safety circuit cables; pipe tracing; electronic controls; snow/ice melting; waterline freeze prevention; thermoelectric cables for temperature sensing & maintenance.


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Raychem


Raychem brand of self-regulating & power-limiting heat-tracing products continue to be recognized as the finest in the world for the Industrial, Commercial, & Residential markets. Raychem is also a world leader in polymer science technology, with an impressive product portfolio that includes high temperature wire for jet aircraft, & heat-shrinkable polymers for electric insulation.


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Tracer


Industry-leading Turnkey Services for Heat-Tracing applications & a full line of engineered products including Skin-effect systems, Heat- Tracing Distribution Panels, Tank Insulation Systems, Safety Stations & Pipe Supports.


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Tyco Thermal Controls


Tyco Thermal Controls is a global company providing optimal solutions for various applications involving heat tracing, floor heating, snow melting & de-icing, temperature measurement sensors, fire rated wiring products, & leak detection systems.


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