EN 253:2009+A2:2015 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
This European Standard specifies requirements and test methods for straight lengths of prefabricated thermally insulated pipe-in-pipe assemblies for directly buried hot water networks, comprising a steel service pipe from DN 15 to DN 1200, rigid polyurethane foam insulation and an outer casing of polyethylene. The pipe assembly may also include the following additional elements: measuring wires, spacers and diffusion barriers. This standard applies only to insulated pipe assemblies, for continuous operation with hot water at various temperatures up to 120 °C and occasionally with a peak temperature up to 140 °C. The estimation of expected thermal life with continuous operation at various temperatures is outlined in Annex B.
EN 253:2009+A2:2015 Referenced Document
EN 10204:2004 Metallic products - Types of inspection documents*， 2024-04-20 Update
EN 10216-2:2013 Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties*， 2024-04-20 Update
EN 10217-1:2002 Welded steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties (Incorporates Amendment A1: 2005)
EN 10217-2:2002 Welded steel tubes for pressure purposes - Technical delivery conditions - Part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties (Incorporates Amendment A1: 2005)
EN 10217-5:2002 Welded steel tubes for pressure purposes Technical delivery conditions Part 5: Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperatures properties (Incorporates Amendment A1: 2005)
EN 10220:2002 Seamless and welded steel tubes - Dimensions and masses per unit length*， 2024-04-20 Update
EN 14419:2009 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Surveillance systems
EN 489:2009 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes@ polyurethane thermal insulation and outer casing of polyethylene
EN 728:1997 Plastics piping and ducting systems - Polyolefin pipes and fittings - Determination of oxidation induction time
EN ISO 1133:2005 Plastics - Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics
EN ISO 2505:2005 Thermoplastics pipes - Longitudinal reversion - Test method and parameters
EN 253:2009+A2:2015 history
2023EN 253:2019+A1:2023 District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made pipe assembly of steel service pipe, polyurethane thermal insulation and a casing of polyethylene
2015EN 253:2009+A2:2015 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
2013EN 253:2009+A1:2013 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
2009EN 253:2009 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene (Incorporates Amendment A1: 2013)
2003EN 253:2003 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene Includes Amendment A2: 2006
1994EN 253:1994 Preinsulated Bonded Pipe Systems for Underground Hot Water Networks - Pipe Assembly of Steel Service Pipes, Polyurethane Thermal Insulation and Outer Casing of Polyethylene
1990EN 253:1990 Preinsulated bonded pipe systems for underground hot water networks; pipe assembly of steel service pipes, polyurethane thermal insulation and outer casing of high density polyethylene