DIN EN 489:2003-05
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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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
Hardcopy , PDF
07-03-2021
English
01-01-2003
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 General requirements
4.1.1 General requirements for the joint
4.1.2 Construction of the joint
4.1.3 Competence of the welder and fitter
4.1.4 Expected thermal life and long term
temperature resistance
4.1.5 Steel service pipe weld
4.1.6 Polyurethane rigid foam insulation (PUR)
4.1.7 Joint casing
4.2 Type test requirements
4.2.1 Soil stress test
4.2.2 polyurethane rigid foam insulation (PUR)
properties
4.3 Installation instructions
4.3.1 General
4.3.2 Work environment
4.3.3 Cleaning
4.3.4 Surveillance system
4.3.5 Steel site weld
4.3.6 Joint casing
4.3.7 Foaming
5 Methods for type tests
5.1 Soil stress test
5.1.1 General
5.1.2 Sand box
5.1.3 Sand
5.1.4 Test specimens
5.1.5 Sand box test
5.1.6 Water impermeability test
5.2 Polyurethane rigid foam insulation (PUR)
5.2.1 General
5.2.2 Test specimens
5.2.3 Sampling
5.2.4 Ageing resistance
Annex A (normative) Fusion welding of steel service
pipes on site
A.1 Material
A.2 Welding process
A.3 Preparation for welding and lining up
A.4 Qualification of welders
A.5 Steel weld inspection
A.5.1 General
A.5.2 Leak-tightness test with air/gas
A.5.3 Leak-tightness test with water
A.5.4 Radiographic examination
A.5.5 Ultrasonic examination
Annex B (informative) General guidelines for inspection
of the joint on site
Annex C (informative) Qualification of fitters installing
joints in preinsulated bonded pipe networks
C.1 Purpose and scope
C.2 Background for training and testing
C.3 Subjects for training and testing
C.3.1 General
C.3.2 Casing of polyethylene (PE)
C.3.3 Surveillance
C.3.4 PUR-foam system
C.3.5 Joint types/jointing systems
C.3.6 Installation of joints
Specifies requirements for joints, made under field conditions, between adjacent preinsulated pipes and/or fittings in district heating networks.
| DevelopmentNote |
Suspended until publication of a revised English text, due to a new German edition. (07/2009)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
German Institute for Standardisation (Deutsches Institut für Normung)
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| UNE-EN 489:2010 | Identical |
| I.S. EN 489:2009 | Identical |
| EN 489:2009 | Identical |
| NS EN 489 : 2009 | Identical |
| NEN EN 489 : 2009 | Identical |
| SN EN 489 : 2009 | Identical |
| UNI EN 489 : 2009 | Identical |
| BS EN 489:2009 | Identical |
| NBN EN 489 : 2009 | Identical |
| NF EN 489 : 2009 | Identical |
| EN 13941:2009+A1:2010 | Design and installation of preinsulated bonded pipe systems for district heating |
| ISO 9692:1992 | Metal-arc welding with covered electrode, gas-shielded metal-arc welding and gas welding Joint preparations for steel |
| EN 444:1994 | Non-destructive testing - General principles for radiographic examination of metallic materials by X- and gamma-rays |
| EN 288-1:1992/A1:1997 | SPECIFICATION AND QUALIFICATION OF WELDING PROCEDURES FOR METALLIC MATERIALS - GENERAL RULES FOR FUSION WELDING |
| EN 1712:1997/A2:2004 | NON-DESTRUCTIVE TESTING OF WELDS - ULTRASONIC TESTING OF WELDED JOINTS - ACCEPTANCE LEVELS |
| 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 |
| EN 25817 : 1992 | ARC WELDED JOINTS IN STEEL - GUIDANCE ON QUALITY LEVELS FOR IMPERFECTIONS |
| EN 287-1:2011 | Qualification test of welders - Fusion welding - Part 1: Steels |
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