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prEN 17878-3

District heating pipes - Flexible pipe systems with a lower temperature profile - Part 3: Non bonded system with plastic service pipes; requirements and test methods

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prEN 17878-3
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This document specifies requirements and test methods for flexible, factory made, buried district heating pipes systems with plastic service pipes and no bonding between the layers of the pipe assemblies. It is only applicable in conjunction with part 1. This document is applicable to a maximum continuous media temperature of 80 °C and maximum operating design pressures up to 1,0 MPa for a design service life of at least 50 years. This document does not apply to cover surveillance systems. In conjunction with the other parts of EN XXXXX, this document is applicable to pipes, fittings, their joints and to joints with components made of non-plastics materials intended to be used for district heating installations.
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