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  • BS EN 448:2015

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

    Available format(s):  Hardcopy, PDF

    Superseded date:  29-10-2019

    Language(s):  English

    Published date:  30-11-2015

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    Defines 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.

    Scope - (Show below) - (Hide below)

    This European Standard specifies requirements and test methods for fittings of prefabricated thermally insulated pipe-in-pipe assemblies comprising a steel service fitting from DN20 to DN1200, 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 EN253 . 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 EN253 . This European Standard applies to fitting assemblies with a minimum design pressure of 16 bar (overpressure) complying with EN13941 . This European Standard does not include calculation rules for loads and stresses. The design and installation rules, for the system, are given in EN13941 .

    General Product Information - (Show below) - (Hide below)

    Committee RHE/9
    Development Note Supersedes 00/715597 DC. (03/2003) Supersedes 07/30165568 DC. (03/2009) Supersedes 14/30294476 DC. (11/2015)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    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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