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Norm
ÖNORM EN 448
Issue date: 2003 06 01
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
This European Standard specifies requirements and test methods for fittings of prefabricated thermally insulated
pipe-in-pipe assemblies comprising a steel service fitti...
Withdrawn: 2009 04 01
§ Legal References
Publisher:
Austrian Standards International
Format:
Digital | 28 Pages
Language:
German
| English
Currently valid:
Optionally co-design standards:
ICS
This European Standard specifies requirements and test methods for fittings of prefabricated thermally insulated
pipe-in-pipe assemblies comprising a steel service fitting from DN 20 to DN 1200, rigid polyurethane foam
insulation and an outer casing of polyethylene for use in directly buried hot water networks with preinsulated pipe
assemblies in accordance with EN 253.
This standard covers the following fittings: bends, T-pieces, reducers and anchors.
This standard applies only to insulated fitting assemblies for continuous operation with hot water at various
temperatures in accordance with clause 1 of EN 253:2003.
Guidelines for quality inspection are given in annex A of this standard.
Procedures for PE-welding are given in annex B of this standard.
NOTE This standard does not include rules for calculation of loads and stresses.
ÖNORM EN 448
2020 03 15
District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory...
Norm
ÖNORM EN 448
2016 01 15
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - F...
Norm
ÖNORM EN 448
2009 04 01
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - F...
Norm
ÖNORM EN 448
2003 06 01
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - F...
Norm
↖
ÖNORM EN 448
1995 04 01
Preinsulated bonded pipe systems for underground hot water networks - Fitting assemblies of steel se...
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District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene