Plastics piping systems for hot and cold water installations. Polyethylene of raised temperature resistance (PE-RT). Part 3: Fittings (ISO 22391-3:2009)
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ISO 22391-3:2009 specifies the characteristics of fittings for piping systems made of polyethylene of raised temperature resistance (PE-RT), Type I and polyethylene of raised temperature resistance (PE-RT), Type II, intended to be used for hot and cold water installations within buildings for the conveyance of water, whether or not the water is intended for human consumption (domestic systems) and for heating systems, under the design pressures and temperatures appropriate to the class of application according to ISO 22391-1. ISO 22391-3:2009 covers a range of service conditions (classes of application), design pressures and pipe dimension classes, and also specifies test parameters and test methods. In conjunction with the other parts of ISO 22391, it is applicable to fittings made of PE-RT, as well as to those made of other materials, intended to be fitted to pipes conforming to ISO 22391-2 for hot and cold water installations, the joints of which are in accordance with ISO 22391-5. It is applicable to the following types of fitting: - mechanical fittings; - socket fusion fitting; - electrofusion fittings; - fittings with incorporated inserts.
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Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 Material characteristics
4.1 Plastics fitting material
4.2 Metallic fitting material
4.3 Influence on water intended for human consumption
5 General characteristics
5.1 Appearance
5.2 Opacity
6 Geometrical characteristics
6.1 General
6.2 Dimensions of sockets for socket fusion and electrofusion fittings
6.3 Dimensions of metallic fittings
7 Mechanical characteristics of plastics fittings
7.1 General
7.2 Fitting material identical to PE-RT compound
7.3 Fitting made from PE-RT but not identical to PE-RT compound
7.4 Fittings made from plastics other than PE-RT
8 Physical and chemical characteristics of plastics components
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