templine heated hoses
Construction-conditioned advantages. |
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Conventionally heated hose system
They transfer the heat to the medium-carrying hose via at least two plastic-insulated heating cables or a heating tape.
The illustration below shows the design in operation as an example. In addition to parallel routing of the heating tape, helical installation of an industrial heating cable with a resistance heating conductor is also possible. In the case of small diameters however, the contact area for heat transfer reduces essentially as the hose radius decreases.
The result:
- high heat density on small areas of the hose surface
- uneven heat distribution
- danger of product overheating ("hot spots")
- energy losses due to indirect heat input (reflection)
- increased energy consumption
- heating system responds with delay on temperature variations in the medium-carrying hos
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The templine heated hose system
With a configuration of four heating conductors spiralled around the surface of the medium-carrying hose and almost complete coverage is obtained. The thermograph below shows the optimal heat spread on the templine heated hose. The heat spreads evenly over the surface to be heated alongside the heating conductors. Annular and homogeneous heating of the medium with only limited temperature differences is thereby assured.
The result:
- heat supplied evenly to the medium with limited temperature variation
- optimal protection for temperature-sensitive liquids, dusts, gases and granulates
- higher energy efficiency – lower power consumption at equal temperaturecompared with conventional systems (up to 30%)
- high ageing resistance of heated-hose system: The smooth heat spread prevents abrasive wear and material stresses due to excessive expansion and reduction resulting from large temperature eviations.
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