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BS EN 15632-1:2022 – TC:2023 Edition

BS EN 15632-1:2022 – TC:2023 Edition

$217.84

Tracked Changes. District heating pipes. Factory made flexible pipe systems – Classification, general requirements and test methods

Published By Publication Date Number of Pages
BSI 2023 86
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This document specifies classification, general requirements and test methods for flexible, factory made, buried district heating pipe systems. This document is intended to be used in conjunction with part 2, 3 or 4, as applicable. Depending on the pipe assembly (see Table 4), this document is applicable to a maximum operating temperature of 95 °C (part 2 and 3) and a maximum operating temperature of 120 °C (for part 4) and design pressures of 0,6 MPa to 2,5 MPa. The pipe systems are designed for a service life of at least 30 years. For pipe systems with plastic service pipes, the respective temperature profiles are specified in EN 15632-2 and EN 15632-3. NOTE For the transport of other liquids, for example potable water, additional requirements can be applicable.

PDF Catalog

PDF Pages PDF Title
1 30480283
51 A-30424905
52 undefined
58 1 Scope
2 Normative references
59 3 Terms and definitions and symbols
3.1 Terms and definitions
3.2 Symbols, indices and abbreviations
63 4 Classification
5 Design requirements
5.1 Thermal insulation properties
64 5.2 Bending test
5.2.1 Flexibility
5.2.2 Ovality
5.2.3 Cracks
5.3 Resistance to external load
5.3.1 Ring stiffness
5.3.2 Impact resistance
5.4 Thermal insulation
5.4.1 Compressive creep
5.4.2 Water absorption at elevated temperatures
65 5.4.3 Density of thermal insulation
5.4.3.1 General
5.4.3.2 Bonded system
5.4.3.3 Non bonded system
5.5 Casing
5.5.1 UV stability
5.5.2 Thermal stability of the material
5.5.3 Stress crack resistance of the material
5.5.4 Use of rework material
66 5.6 Surveillance systems
6 Test methods
6.1 General
6.2 Bending test
6.2.1 Flexibility
68 6.2.2 Ovality test
6.2.3 Cracks in the thermal insulation
69 6.3 Compressive creep
6.3.1 General
6.3.2 Principles of testing
6.3.3 Test apparatus
71 6.3.4 Test specimen
6.3.5 Test procedure
72 6.3.6 Test force and expression of results
73 7 Marking
7.1 General marking aspects
7.2 Minimum marking information
74 8 Manufacturer’s information
75 Annex A (normative)Thermal conductivity of factory made pipes – Test procedure
A.1 General
A.2 Requirements
A.2.1 Test specimen
A.2.2 Operating temperature
A.2.3 Types of apparatus
A.3 Apparatus
A.3.1 Guarded end apparatus
A.3.2 Calibrated end apparatus
76 A.3.3 Dimensions
A.3.4 Heater pipe surface temperature
A.4 Test specimen
A.4.1 Conditioning
A.4.2 Surface temperature measurement
A.4.3 Location of temperature sensors
A.5 Procedure
A.5.1 Test length
A.5.2 Diameter and dimension measurement
78 A.5.3 Thickness of casing
A.5.4 Ambient requirements
A.5.5 Test pipe temperature
A.5.6 Power supply
79 A.5.7 Axial heat loss
A.5.8 Test period and stability
A.6 Calculations – Thermal conductivity
81 Annex B (informative)Determination of design values for the radial thermal resistance
82 Annex C (informative)Guideline for inspection and testing

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BS EN 15632-1:2022 - TC
$217.84