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EN 448:2015

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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

Superseded date

10-26-2019

Published date

11-04-2015

European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test methods
6 Marking
Annex A (informative) - Guidelines for inspection and testing
Annex B (informative) - Procedures for polyethylene welding
Bibliography

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 European Standard covers the following fittings: bend, tee, reducer, single use compensator and anchor.This European Standard applies only to factory made prefabricated fitting assemblies and single use compensators for continuous operation with hot water at various temperatures in accordance with EN 253.This European Standard applies to fitting assemblies with a minimum design pressure of 16 bar (overpressure) complying with EN 13941.This European Standard does not include calculation rules for loads and stresses. The design and installation rules, for the system, are given in EN 13941.

Committee
CEN/TC 107
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

Standards Relationship
UNE-EN 448:2017 Identical
NBN EN 448 : 2015 Identical
NF EN 448 : 2015 Identical
NEN EN 448 : 2015 Identical
NS EN 448 : 2015 Identical
I.S. EN 448:2015 Identical
PN EN 448 : 2015 Identical
SN EN 448 : 2016 Identical
UNI EN 448 : 2009 Identical
BS EN 448:2015 Identical
DIN EN 448:2016-02 Identical

DIN EN 15698-2 E : 2015 DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 2: FITTING AND VALVE ASSEMBLY OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
09/30197069 DC : 0 BS EN 488 - DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
02/705050 DC : DRAFT APR 2002 PREN 14419 - DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - SURVEILLANCE SYSTEMS
18/30368654 DC : 0 BS EN 488 - DISTRICT HEATING PIPES - BONDED SINGLE PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - FACTORY MADE STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND A CASING OF POLYETHYLENE
BS EN 15698-2:2015 District heating pipes. Preinsulated bonded twin pipe systems for directly buried hot water networks Fitting and valve assembly of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
I.S. EN 14419:2009 DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - SURVEILLANCE SYSTEMS
I.S. EN 488:2015 DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
BS 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
BS EN 14419:2009 District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Surveillance systems
DIN EN 13941:2003-10 DESIGN AND INSTALLATION OF PREINSULATED BONDED PIPE SYSTEMS FOR DIRECT HEATING
14/30294473 DC : 0 BS EN 488 - DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
DIN EN 15698-2:2015-11 DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 2: FITTING AND VALVE ASSEMBLY OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
I.S. EN 13941:2009 DESIGN AND INSTALLATION OF PREINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING
09/30186448 DC : 0 BS EN 13941 - DESIGN AND INSTALLATION OF REINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING
16/30342040 DC : 0 BS EN 13941-2 - DISTRICT HEATING PIPES - DESIGN AND INSTALLATION OF THERMAL INSULATED BONDED SINGLE AND TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 2: INSTALLATION
PREN 13941 : DRAFT 2009 DESIGN AND INSTALLATION OF REINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING
18/30372124 DC : DRAFT APR 2018 BS EN 17248 - DISTRICT HEATING AND DISTRICT COOLING PIPE SYSTEMS - TERMS AND DEFINITIONS
DIN EN 488:2016-02 DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
I.S. 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 488:2015 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
UNI 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
UNI EN 13941 : 2011 DESIGN AND INSTALLATION OF PREINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING
UNI EN 14419 : 2009 DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - SURVEILLANCE SYSTEMS
17/30360921 DC : 0 BS EN 489-1 - DISTRICT HEATING PIPES - BONDED SINGLE AND TWIN PIPE SYSTEMS FOR BURIED HOT WATER NETWORKS - PART 1: JOINT CASING ASSEMBLIES AND THERMAL INSULATION FOR HOT WATER NETWORKS IN ACCORDANCE WITH EN 13941-1
I.S. EN 15698-2:2015 DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 2: FITTING AND VALVE ASSEMBLY OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
DIN EN 14419 E : 2004 DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - SURVEILLANCE SYSTEMS
DIN EN 489:2009-07 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; German and English version EN 489:2009
UNE-EN 488:2012 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
BS EN 488:2015 District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
BS EN 13941 : 2009 DESIGN AND INSTALLATION OF PREINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING
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 14419:2009 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Surveillance systems
EN 13941:2009+A1:2010 Design and installation of preinsulated bonded pipe systems for district heating
EN 15698-2:2015 District heating pipes - Preinsulated bonded twin pipe systems for directly buried hot water networks - Part 2: Fitting and valve assembly of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
16/30342037 DC : 0 BS EN 13941-1 - DISTRICT HEATING PIPES - DESIGN AND INSTALLATION OF THERMAL INSULATED BONDED SINGLE AND TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 1: DESIGN
13/30291075 DC : 0 BS EN 15698-2 - DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 2: FITTING AND VALVE ASSEMBLY OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
PREN 17248 : DRAFT 2018 DISTRICT HEATING AND DISTRICT COOLING PIPE SYSTEMS - TERMS AND DEFINITIONS
PREN 488 : DRAFT 2018 DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE
DIN EN 14419:2004-03 DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - SURVEILLANCE SYSTEMS

EN 13941:2009+A1:2010 Design and installation of preinsulated bonded pipe systems for district heating
ISO 17636-1:2013 Non-destructive testing of welds — Radiographic testing — Part 1: X- and gamma-ray techniques with film
EN ISO 9692-1:2013 Welding and allied processes - Types of joint preparation - Part 1: Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels (ISO 9692-1:2013)
ISO 2553:2013 Welding and allied processes Symbolic representation on drawings Welded joints
EN ISO 5817:2014 Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections (ISO 5817:2014)
ISO 8501-1:2007 Preparation of steel substrates before application of paints and related products — Visual assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings
ISO 11666:2010 Non-destructive testing of welds Ultrasonic testing Acceptance levels
EN 488:2015 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
EN ISO 3452-1:2013 Non-destructive testing - Penetrant testing - Part 1: General principles (ISO 3452-1:2013, Corrected version 2014-05-01)
ISO 23277:2015 Non-destructive testing of welds Penetrant testing Acceptance levels
ISO 15590-1:2009 Petroleum and natural gas industries Induction bends, fittings and flanges for pipeline transportation systems Part 1: Induction bends
EN ISO 10675-1:2016 Non-destructive testing of welds - Acceptance levels for radiographic testing - Part 1: Steel, nickel, titanium and their alloys (ISO 10675-1:2016)
ISO 14732:2013 Welding personnel Qualification testing of welding operators and weld setters for mechanized and automatic welding of metallic materials
EN ISO 23278 : 2015 NON-DESTRUCTIVE TESTING OF WELDS - MAGNETIC PARTICLE TESTING - ACCEPTANCE LEVELS (ISO 23278:2015)
ISO 9606-1:2012 Qualification testing of welders — Fusion welding — Part 1: Steels
EN ISO 23277:2015 Non-destructive testing of welds - Penetrant testing - Acceptance levels (ISO 23277:2015)
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
EN ISO 14732:2013 Welding personnel - Qualification testing of welding operators and weld setters for mechanized and automatic welding of metallic materials (ISO 14732:2013)
ISO 2859-2:1985 Sampling procedures for inspection by attributes — Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection
ISO 23278:2015 Non-destructive testing of welds Magnetic particle testing Acceptance levels
ISO 5579:2013 Non-destructive testing — Radiographic testing of metallic materials using film and X- or gamma rays — Basic rules
ISO 17640:2017 Non-destructive testing of welds Ultrasonic testing Techniques, testing levels, and assessment
ISO 5817:2014 Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections
ISO 3452-1:2013 Non-destructive testing Penetrant testing Part 1: General principles
ISO 16810:2012 Non-destructive testing — Ultrasonic testing — General principles
EN ISO 9934-1:2016 Non-destructive testing - Magnetic particle testing - Part 1: General principles (ISO 9934-1:2016)
ISO 9692-1:2013 Welding and allied processes — Types of joint preparation — Part 1: Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels
EN 14419:2009 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Surveillance systems
EN ISO 16810:2014 Non-destructive testing - Ultrasonic testing - General principles (ISO 16810:2012)
EN ISO 17637:2016 Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2016)
EN ISO 5579:2013 Non-destructive testing - Radiographic testing of metallic materials using film and X- or gamma rays - Basic rules (ISO 5579:2013)
EN ISO 9001:2015 Quality management systems - Requirements (ISO 9001:2015)
ISO 17636-2:2013 Non-destructive testing of welds — Radiographic testing — Part 2: X- and gamma-ray techniques with digital detectors
EN 12814-1:1999/AC:2003 TESTING OF WELDED JOINTS OF THERMOPLASTICS SEMI-FINISHED PRODUCTS - PART 1: BEND TEST
EN 10217-2:2002/A1:2005 WELDED STEEL TUBES FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 2: ELECTRIC WELDED NON-ALLOY AND ALLOY STEEL TUBES WITH SPECIFIED ELEVATED TEMPERATURE PROPERTIES
EN ISO 2553:2013 Welding and allied processes - Symbolic representation on drawings - Welded joints (ISO 2553:2013)
ISO 9934-1:2016 Non-destructive testing — Magnetic particle testing — Part 1: General principles
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
ISO 17637:2016 Non-destructive testing of welds Visual testing of fusion-welded joints
ISO 9001:2015 Quality management systems — Requirements
EN ISO 17636-2:2013 Non-destructive testing of welds - Radiographic testing - Part 2: X- and gamma-ray techniques with digital detectors (ISO 17636-2:2013)
EN 13018:2016 NON-DESTRUCTIVE TESTING - VISUAL TESTING - GENERAL PRINCIPLES
EN ISO 8501-1:2007 Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings (ISO 8501-1:2007)
ISO 15607:2003 Specification and qualification of welding procedures for metallic materials General rules
EN ISO 17636-1:2013 Non-destructive testing of welds - Radiographic testing - Part 1: X- and gamma-ray techniques with film (ISO 17636-1:2013)
EN ISO 9606-1:2017 Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1:2012 including Cor 1:2012 and Cor 2:2013)
EN ISO 17638:2016 Non-destructive testing of welds - Magnetic particle testing (ISO 17638:2016)
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
ISO 10675-1:2016 Non-destructive testing of welds Acceptance levels for radiographic testing Part 1: Steel, nickel, titanium and their alloys
EN 14870-1:2011 Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 1: Induction bends (ISO 15590-1:2009 modified)
ISO 17638:2016 Non-destructive testing of welds Magnetic particle testing
EN 10253-2:2007 Butt-welding pipe fittings - Part 2: Non alloy and ferritic alloy steels with specific inspection requirements
EN 10217-1:2002/A1:2005 WELDED STEEL TUBES FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - NON-ALLOY STEEL TUBES WITH SPECIFIED ROOM TEMPERATURE PROPERTIES
EN 10217-5:2002/A1:2005 WELDED STEEL TUBES FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 5: SUBMERGED ARC WELDED NON-ALLOY AND ALLOY STEEL TUBES WITH SPECIFIED ELEVATED TEMPERATURE PROPERTIES
EN ISO 15607:2003 Specification and qualification of welding procedures for metallic materials - General rules (ISO 15607:2003)

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