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    Shandong plastic piping systems engineering technology research center

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    Plastic tubing afraid of cold? Buried depth is more appropriate?
    Article source : LUYUGROUP Add time : 2015-01-07 Page view:

    Plastic pipes and steel pipes, cast iron pipe, in the construction, the pipe should be more than at the top of the permafrost under 20 cm, because the water freezes at 0 ℃, 4 ℃ below zero when the largest volume, volume expansion will happen at this moment, plastic pipe and other pipe, inevitably burst will happen, so, even if does not freeze in the south area, also want to consider to suppress, load, farming and other factors, so the relevant provisions of the required depth below 70 cm.

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