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Custom Designed, Insulated Heating Jackets offer an elegant, efficient way to apply heat onto specific shapes, using low watt density, efficient direct heat transfer. Often, heat transfer efficiency results in 50% less energy required than using traditional band or strip heaters. Shaped Heating Jackets may be built small or large, in many different geometries. All Shaped Heating Jackets, whether tubular, rectangular, elbow, spherical or combination shape, start with an inner fabric liner and HTS/Amptek® knitted heat tape element.


Features and Specifications

Power density: 1.0 to 12.0 w/in² (0.16 to 1.5w/cm²)
Watts, Volts: Custom KW, 120V/1 to 480V/3ph
Size: Custom Modular Sizes for Convenient Install
Weight: Modular, 50lbs (23kg) Max Recommended
Heat Capability: Operating Temperature to 1112°F (600°C)
Max Exposure: 1400°F (760°C)
Power Leads: A-Nickel or Cu-Ni, Flying, Sleeved or Armored
Power Plugs: NEMA, Straight, Twist Loc, Pin & Sleeve
Sensors: Process & Limit Thermocouple or RTD
Area Class: Non-Hazardous, Dry


Jacket sizes:
Small Heating Jackets may be constructed to fit ¾ inch diameter tubing and fittings. Large Heating Jackets are limited by weight, typically 50lbs (23kg), but may be constructed in multiples to fit large surfaces.

An inner liner has the mechanically attached heating element and sensors. Then insulation layers are placed overtop with gusset and outer fabrics to inclose the assembly. All Jackets are pre-formed to the 3D shape and double stitched for durability. The materials of construction depend upon the temperature and environment of use. Below 550° F choices can include materials such as Teflon and Silicone, which provide durability and some moisture protection. High temperature Jackets, are constructed of safe fiberglass based fabrics with Fiberglass or Ceramic insulations. Moisture resisting materials or grounding planes may be placed over as a final outer cover.

The Heating Element:
HTS/Amptek® knitted Heating Tape is stitched or bonded to the liner of each Jacket to apply the heat where needed. Monotape™ and Duo-Tape® elements are multi-strand insulated resistance wire, knitted into surpentine strips allowing ultimate flexability that eliminates thermal stress.

Temperature Capability:
900°F (482°C), or AMOX™ to 1400°F (760°C). However, temperatures exceeding 1112°F exposure, are not recommended if the Jacket would need to be manipulated once in place. (removed and reinstalled)

Heated Zones:
Typical Jackets have a single zone, however, multiple zones may be arranged having individual power leads and sensors. This arrangement can offer zonal duty-cycle for ultimate control.

Temperature sensors:
Built in thermal sensors such as RTDs or Thermocouples can be installed for process temperature measurement, or directly on the heating element for sensing limit temperature.

Cutouts and Penetrations:
Cut outs and slits for supports, ports and other hardware are typical of most applications. HTS/Amptek® designs pre-formed Jacket configurations with gusseted holes, slits and seams to provide great fit and easy install and removal. Additional, insulated flaps and straps cover the exposed seams.

Most common Closures are Velcro® flap and D ring strap or lacing eye closure methods, however quicker and cleaner methods include convenient snaps or Delrin® Clips.

Contact: HTS/Amptek®
Call or email your questions, or click the quote button for a convenient form to help us with the size and scope of your application.