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Which heating cable to choose for a pipe in a water supply system from a well

Galina

Topic created April 3, 2019

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Greetings. I’m interested in the nuance of the following type: we pump water from a prefabricated reinforced concrete well, a pump is pumped at a depth of 50 cm to a depth of 50 cm to 20 cm from a 50 m HDPE pipe. I assume that the pipe will freeze in winter.

Which heating cable for the pipe to choose? Where is it better to throw it - inside or outside? If you throw it outside, how difficult will it be to replace it with the end of the service?

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Visitors Comments

Expert
Vasily Borutsky
Expert
To answer
Good afternoon. Focus primarily on the price. High-quality, reliable cable is more expensive than analogs. In the store it will not be superfluous to request certificates, especially when placing inside the water supply. Do not purchase a cable without a hygiene certificate. I also recommend the IPX7 degree of protection - it will provide reliable fire protection.
Much more depends on your region. For example, in Sochi, soil freezing is from 50 to 80 cm and then there is no need to trace the entire length of the pipeline. In your case, the internal one is more economically feasible - you will not have to remove the pavement (after laying it, accordingly restore) and carry out earthwork.
The service life of a typical cable is on average 15 years. During this time, you can lay asphalt, paving slabs, make a concrete platform, and if the outdoor cable fails, you will have to dismantle it. The internal one will be replaced at the entry point without additional inconvenience. The average price difference (about 5 times) compared with an external heating cable will still turn out to be financially more profitable.
In addition to the heating cable, a regulator can be purchased for complete control. Shows and makes it possible to program (in the photo) the heating operation. I also recommend reading an article on your topic on our website - https://engineerex.decorexpro.com/en/vodosnab/vodoprovod/obogrev-vodoprovoda.html#_4.
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