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CEGA jacket pipes for pre-insulation made of polyethylene, acc. to PN-EN253:2020-01, with corona treatment

In order to reduce circumferential and longitudinal stresses in the jacket pre-insulated pipe CEGA uses innovative manufacturing technology leading to:

  1. ≤ 0.5% reduction of longitudinal stresses, according to EN ISO 2505
  2. ≤ 0.1% reduction of circumferential stresses, according to EN ISO 2505

Usage of “de-stressed” with corona treatment jacket pipes have the following effects:

  • minimizes the risk of “tearing off” foam from the jacket pipe, which is critical for quality of pre-insulated pipe during its usage,
  • seriously reduces the stresses in the jacket pipe, which lowers the risk of stress-induced corrosion, ie. its cracking during use of district-heating pipeline.

Note: Reduction of longitudinal and circumferential stress is out-of standard and can be done upon customer’s demand.

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