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SR EN 13941+A1:2010

Design and installation of preinsulated bonded pipe systems for district heating

This European Standard specifies rules for design, calculation and installation for preinsulated bonded pipe systems for buried hot water distribution and transmission networks (cf. Figure 2) with pipe assemblies in accordance with EN 253, for continuous operation with hot water at various temperatures up to 120oC and occasionally with peak temperatures up to 140oC and maximum internal pressure 25 bar (overpressure). Application rule: For larger pipe dimensions and pressures below 25 bar wall thickness bigger than specified in EN 253 can be required for straight pipes, bends and tees. The principles of the standard can be applied to preinsulated pipe systems with pressures higher than 25 bar, provided that special attention is paid to the effects of pressure. Adjacent pipes belonging to the network (e.g. pipes in ducts, valve chambers, road crossings above ground etc.) can be designed and installed according to this standard. The standard assumes use of treated water, which by softening, demineralisation, deaeration, adding of chemicals, or otherwise has been treated to preven

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Status : Withdrawn
Approval date : 12/24/2010
Withdrawal date : 9/30/2019
Number of pages : 134
ICS : 23.040.07 Pipelines and its parts for district heat,23.040.10 Iron and steel pipes,91.140.10 Central heating systems
Technical Committee : 302 - Space heating appliances, ventilation and room air conditioner

Relations with other standards: