EN 1796:2013/prA1

Plastics piping systems for water supply with or without pressure - Glass-reinforced thermosetting plastics (GRP) based on unsaturated polyester resin (UP) EN 1796:2013/prA1

Scope

This European Standard specifies the required properties of the piping system and
its components made from glass-reinforced thermosetting plastics (GRP) based on
unsaturated polyester resin (UP) intended to be used for water supply (drinking or
raw) with or without pressure. In a pipework system, pipes and fittings of different
nominal pressure and stiffness ratings may be used together. It is the responsibility
of the purchaser or specifier to make the appropriate selections taking into account
their particular requirements and any relevant national regulations and installation
practices or codes. This European Standard is applicable to GRP-UP, with flexible
or rigid joints (see 3.33 and 3.34), primarily intended for use in buried installations.
It is applicable to pipes, fittings and their joints of nominal sizes from DN 100 to DN
4000, which are intended to be used for the conveyance of water at temperatures
up to 50 °C, with or without pressure. This European Standard covers a range of
nominal sizes, nominal stiffnesses and nominal pressures. This European
Standard is applicable to fittings made using any of the following techniques: a)
fabricated from straight pipe; b) moulded by: 1) filament winding; 2) tape winding;
3) contact moulding; 4) hot or cold press moulding. This European Standard is
applicable to the joints to be used in GRP-UP piping systems to be used for the
conveyance of water, both buried and non-buried. It is applicable to joints, which
are or are not intended to be resistant to axial loading. It covers requirements to
prove the design of the joint. It specifies type test performance requirements for the
following joints as a function of the declared nominal pressure rating of the pipeline
or system: c) socket-and-spigot (either integral with pipe or sleeve coupling) or
mechanical joint; d) locked socket-and-spigot joint; e) cemented or wrapped joint; f)
bolted flange joint. Recommended practices for the installation of buried pipes
made in accordance with this standard is addressed in CEN/TS 14578. Guidelines
for the structural analysis of buried GRP-UP pipelines are addressed in CEN/TS
14807. Guidance for the Assessment of Conformity of products made in
accordance with this standard is addressed in CEN/TS 14632.