pic. 1: heated tube
|Application of Heating Jackets
Heating jackets are operative electric heatings with integrated thermal insulations.
They are produced corresponding to customer-specified shapes. Due to the adapted form the assembly time is reduced to a minimum.
Heating jackets can be made for many different components, eg.:
tubes (pic. 1)
casings of exhaust gas outlets (pic. 2)
tank bottoms (pic. 4)
standard vacuum components (pic. 3)
pump heads (pic. 5)
round or square containers
flow measuring devices
and many other parts.
Heating jackets are made of textile materials. They are composed of a heating surface, electrically insulated heating conductors, a thermal insulation and a robust outer casing.
The heating jackets will be fixed with Velcro fasteners on the outer casing.
pic. 2: heated casing of an exhaust gas outlet
The materials are chosen corresponding to the conditions of use. Selection criteria are the operating temperature and the working environment where the heating is to be used.
High-quality technical fabrics made of kevlar, silicone, PTFE, textile glass and textile quartz
glass are used.
In the temperature range up to 250 °C moisture-resistant, PTFE insulated heating conductors can be used.
In the temperature range up to 450 °C textile glass insulated heating conductors, in the temperature range up to 900 °C quartz glass insulated heating conductors are used.
We have a wide range of heating conductors in stock. With their small bending radii they can be attached closely even on complicated surfaces to be heated.
A homogeneous heating capacity reduces the strain on the heating conductor, and the temperature difference between the heating element and the intended temperature of the heated component is minimized.
The heating occurs not on certain points, but all over the available surface.
pic. 3: standard vacuum components
Heating jackets have to be used temperature-controlled and, if necessary, with an additional temperature limiting unit.
Therefore our heating jackets are normally equipped with built-in thermocouples or Pt 100 resistance thermometers.
It is also possible to place mechanical thermostats.
As an all-purpose temperature regulator we recommend our series HT
MC1, for extensive heatings our series HT
pic. 4: heating jacket for a tank bottom
|Lay-Out of a Typical Heating Jacket
Outer casing: aluminum or PTFE coated fabric
Fastening: by Velcro fasteners for various materials, eyelet strip
Thermal insulation: silicone foam, textile glass, silica fiber
Heating conductor: electrically insulated with PTFE, textile glass or quartz glass
Temperature sensors: all common thermocouples, Pt 100, thermal switches for temperature control
Heating surface: fabrics made of kevlar or silicone, PTFE coated fabrics, textile glass, quartz glass fabrics
pic. 5: heated pump head
For a quotation we need the following
description of the component to be heated, with drawing or photo
function of the heating: heating-up of the component or compensation of heat loss
temperature sensor specification: standard is NiCrNi (K)
heating jacket connection: net and sensor line together or separate
length of the connecting cable: standard is 1.5 m
By the way: We also produce our jackets without a heating element.So you get high-quality detachable and well-fitting insulating jackets to protect your already heated components against undesired heat loss.
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Last change: 2005-02-25