Heating Systems
Heat-conducting Cement
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Double-casing heating was formerly used very frequently; however, during recent years it was increasingly replaced by concomitant heating. This is due to the danger of product pollution and to the high cost of investment for the double casing.
Concomitant heating assisted by PREMATHERM heat-conducting paste is increasingly used. This type of heating offers simple and easy installation of the concomitant piping and, through the support of PREMATHERM heat-conducting paste, the resulting heat transfer has almost the same effect as a double-casing heating.
Concomitant Heating with PREMATHERM Heat-conducting Paste
We are often asked whether, in the case of pipelines that are installed in vertical direction, the additional pipes may be positioned underneath or even on top (because of the easier assembly). To answer this question precisely, we have carried out the following experiment:
SPECIFICATIONS
| Product Pipe: | NW 50 | Product: | Oil |
| Additional tube: | 1 Peace | Measurements: | 10 x 1 mm |
| Insulation thickness: | 40 mm | Heating Medium: | Steam |
| Temperature | |
| Saturated Steam: | 130°C |
| Environment: | 20°C |

The result shows that by using PREMATHERM heat-conducting paste the product may be heated up to 120°C within a short time, and that the position of the additional tube is irrelevant. By contrast, it has been shown in the case of concomitant heating without heat-conducting paste that, in the best case, the equilibrium was reached at a temperature of 87°C, and that the position of the additional tube is very important.
Advantages
PREMATHERM heat-conducting paste will not harden.
Uneven surfaces are levelled out, and thus you have very good heat transfer.
Typical Fields of Application
For what purposes has PREMATHERM heat-conducting paste been used?
We can only provide part of the versatile program of industrial applications. Today, it is nearly impossible to provide a complete list of all fields in which PREMATHERM heat-conducting paste is used, but you will see from the most frequently used products heated by us with the help of heat-conducting paste that the possible applications are practically unlimited.
Asphalt systems
Heavy-oil and heating-oil systems
Phthalic acid systems
Sulphur systems
Glycol systems
Ammonium-Nitrate systems
Glycerol systems
Phenol systems
Various raw chemicals
Naphta systems
Ethylene systems |
Wax-, rubber products
Cyclohexanol systems
Various acid-caustic solutions
Raw products for paints
Amine compounds
Benzol
Caprolactam
Molasses, liquid sugar
Carbamides, adhesives
Syrup, Chocolate
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PREMATHERM Products
Please do not hesitate to contact us for additional information.
Your contact: Mr. Dirk Hofmann, Phone: +49 6172 67 78-59, E-mail: dirk.hofmann@prema-service.de
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