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BS ISO 4437-3:2024

BS ISO 4437-3:2024

$167.15

Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE) – Fittings

Published By Publication Date Number of Pages
BSI 2024 44
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PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
8 Introduction
9 1 Scope
10 2 Normative references
11 3 Terms and definitions
3.1 Terms related to geometry
12 3.2 Terms related to material
13 3.3 Terms related to material characteristics
3.4 Terms related to service conditions
14 3.5 Terms related to joints
4 Symbols and abbreviated terms
4.1 Symbols
16 4.2 Abbreviated terms
17 5 Material
5.1 PE compound for fittings
5.2 Material for non-polyethylene parts
5.2.1 General
5.2.2 Metal parts
5.2.3 Sealing materials
18 5.2.4 Other materials
6 General characteristics
6.1 Appearance
6.2 Colour
6.3 Design
6.4 Appearance of factory-made joints
6.5 Electrical characteristics for electrofusion fittings
19 7 Geometrical characteristics
7.1 Measurement of dimensions
7.2 Dimensions of electrofusion socket fittings
7.2.1 Diameters and lengths of electrofusion sockets
21 7.2.2 Wall thicknesses
7.2.3 Out-of-roundness of the bore of a fitting (at any point)
7.2.4 Spigots
7.2.5 Other dimensions
7.3 Dimensions of electrofusion saddle fittings
22 7.4 Dimensions of spigot end fittings
7.4.1 Diameters and lengths
24 7.4.2 Wall thickness of the fusion end
7.4.3 Wall thickness of the fitting body
7.4.4 Other dimensions
7.5 Dimensions of socket fusion fittings
7.6 Design and dimensions of mechanical fittings
7.6.1 General
25 7.6.2 Mechanical fittings with polyethylene spigot ends
7.6.3 Mechanical fittings with polyethylene electrofusion sockets
7.6.4 Threads
8 Mechanical characteristics
8.1 General
8.2 Requirements
28 8.3 Modifications of the fitting
8.4 Performance requirements
29 9 Physical characteristics
9.1 Conditioning
9.2 Requirements
30 10 Performance requirements
11 Technical information
12 Marking
12.1 General
31 12.2 Minimum required marking of fittings
12.3 Additional marking
12.4 Fusion system recognition
32 13 Delivery conditions
33 Annex A (normative) Socket fusion fittings
35 Annex B (informative) Examples of typical terminal connections for electrofusion fittings
38 Annex C (normative) Short-term pressure test method
40 Annex D (normative) Tensile test for fitting/pipe assemblies
42 Annex E (informative) Formulae for calculating the equivalent dimensions of non-metric electrofusion socket fitting series
43 Bibliography

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BS ISO 4437-3:2024
$167.15