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  • BSI
    BS 7291-1:2010 Thermoplastics pipe and fitting systems for hot and cold water for domestic purposes and heating installations in buildings - General requirements
    Edition: 2010
    $411.69
    / user per year

Description of BS 7291-1:2010 2010

This part of BS 7291 specifies general requirements and methods of test for thermoplastics pipe and fitting systems intended for use within buildings for the conveyance of cold water, including drinking water, and heated water for use in domestic hot and cold water distribution and heating installations. These systems are also suitable for the conveyance of cold water for a period of 50 years at a temperature of 20 °C and a design pressure of 12½ bar.

This British Standard is applicable only to Class “S” pipes and fittings.

Details of the specific applications and service conditions are given in Table 1.

This specification is applicable to rigid or flexible plain pipes, pipes incorporating a polymeric barrier to inhibit gas permeability through the pipe wall and multilayer pipes having a nominal outside diameter up to and including 110 mm.

NOTE 1 Methods of test are given in Annex A, Annex B, Annex C and Annex D. Annex E gives guidance on factory control procedures.

NOTE 2 BS 7291‑2 and BS 7291‑3 specify additional requirements for pipes and/or fittings manufactured from specific thermoplastics materials. They should be read in conjunction with this part of BS 7291.

NOTE 3 Reference to “pressure” in this part of BS 7291 means “gauge pressure”, unless otherwise stated.

NOTE 4 Where the pipe or fitting is of a thermoplastics material covered by BS 7291‑1, BS 7291‑2 or BS 7291‑3, either the requirements for preventing or controlling the extent of permeation specified in the applicable part, e.g. by use of a barrier pipe, should be followed, or a corrosion inhibitor added to the primary circuits in accordance with BS 5955‑8.



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About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.

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