Video ► Large Area "Pocket" Blankets
|Power density:||1.0 to 12.0 w/in² (.16 to 1.5w/cm²)|
|Watts, Volts:||Custom KW, 120V/1 to 480V/3|
|Size:||To 24 ft (7.3m) long, 30in (46cm) wide|
|Weight:||Modular, 50lbs (23kg)|
|Heat Capability:||Operating Temperature to 1100°F (593°C)|
|Max Exposure:||1400°F (760°C)|
|Power Leads:||A Nickel or Cu-Ni Alloy, Sleeved Armored|
|Plugs:||1P or 3P Connectors, Extensions available|
|Sensors||Process & Limit T/C or RTD|
|Area Class||Non Hazardous, Dry|
|Controllers||Single, or Multiple, Control Panel|
offer an efficient way to apply heat large areas, using low watt density, efficient direct heat transfer. Smooth, consistent heat can be applied as an alternative to applying inconsistent spot heat with MGO style Calrods or MI Cable.
Flat Heating Blankets are ideal for use on uninterrupted flat, cylindrical or conical shapes. With a thickness of approximately ¼ inch (7mm), the Heating Blanket may supply the heat, and external insulation may be applied over top.
Construction may be two different techniques. First, for the larger blankets pockets can be sewn between layers of high temperature fabric. The HTS/Amptek® knitted, heat tape element is then pulled into the created pockets. The second method uses a direct stitching method to hold the element down to the liner. This technique is used for smaller blankets. The closure method is typically a robust hook strip, or an islet strip for lacing the Blanket in place.
The materials of construction depend upon the temperature and environment of use. Below 500° F choices can include materials such as Teflon® and Silicone, which provide durability and some moister protection. High temperature Jackets, are constructed of safe fiberglass based fabrics with Nickel or Stainless eyelets or lacing hooks for attachment.
Jacket sizes: Small Heating blanket sizes are used when the available Heating Tapes are too narrow. From 2 inches wide by 24 inches long, Flat Heating blankets can be built with multiple zones in custom widths and lengths in much larger format. Large Heating Blankets are limited by weight, typically 50lbs (23kg), but may be constructed in a modular fashion to fit large surfaces using several Blankets.
Heat Capability: 900°F (482°C), or AMOX™ to 1400°F (760°C). However, temperatures exceeding 1200°F exposure, are not recommended if the Blanket would need to be manipulated once in place. (removed and reinstalled)
Heated zones: For applications requiring varying heat densities, multiple heated zones may be incorporated in a single Blanket. Each zone would include power leads, and temperature sensors.
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.
Closures: Since the closure hardware will reside in the "hot" area of the Blanket the closure methods need to be capable of that temperature. Therefore, the methods are limited to Lacing Hook Strips, Eyelets or Ties.
Contact HTS/Amptek®, or click the quote button for more information, and a convenient form to help us with the size and scope of your application.