CEN/TC 203/WG 1 - Water pipelines under pressure

This document specifies the requirements and associated test methods applicable to wide tolerance ductile iron and steel (restricted sizes for steel) couplings, stepped/reducing couplings and flange adaptors intended for use with pipe components made from a number of pipe materials (ductile iron, grey iron, PE in conformity with EN 12201-1 to EN 12201-5, PVC-U in conformity with EN ISO 1452-1 to EN ISO 1452-5, PVC-O in conformity with EN 17176-1 to EN 17176-5, steel, fibre-cement), for providing a leak tight seal over a wide range of pipe outside diameters:
-   to convey water (e.g. water intended for human consumption);
-   with or without pressure;
-   to be installed below or above ground, inside or outside buildings.
This document is not intended to cover sewerage or gas applications, where additional requirements may be necessary.
This document specifies requirements for materials, dimensions and tolerances, mechanical properties and standard coatings of products.
This document covers wide tolerance couplings, stepped/reducing couplings and flange adaptors:
-   manufactured with socketed or flanged ends;
-   supplied externally and internally coated;
-   suitable for pipes made from ductile iron in conformity with EN 545, grey iron, PE in conformity with EN 12201-1 to EN 12201-5, PVC-U in conformity with EN ISO 1452-1 to EN ISO 1452-5, PVC-O in conformity with EN 17176-1 tot EN 17176-5, steel, fibre-cement in a size range extending from DN 40 to DN 800, for an allowable operating pressure (PFA) up to 16 bar, for fluid temperatures between 0 °C and 25 °C excluding frost. For higher temperatures, (up to 45 °C for PVC-U and PVC-O or 40 °C for PE) the PFA is derated as given in EN ISO 1452 and EN 12201;
-   not intended for use in areas subjected to reaction to fire regulations.
NOTE 1   This does not preclude special arrangements for the products to be used at higher temperatures. Temperature limitations and pressure limitations are those coming from the PVC-U, PVC-O or PE pipes.
This document covers ductile iron couplings, stepped/reducing couplings and flange adaptors cast by any type of foundry process or manufactured by fabrication of cast components, as well as corresponding joints, in a size range extending from DN 40 to DN 800.
As long as no equivalent European Standard exists for steel accessories, this document also covers couplings and flange adaptors which are fabricated partly or entirely from steel as well as corresponding joints, in a size range extending from DN 600 to DN 800.
This document specifies requirements for materials, dimensions and tolerances, mechanical properties and standard coatings. It also gives minimum performance requirements for all components, including restrained and non-restrained flexible joints. Joint design and gasket shapes are outside the scope of this document.
NOTE 2   PFA can be limited depending on pipe materials effectively connected.
NOTE 3   In this document, if not specified, all pressures are relative gauge pressures, expressed in bars (100 kPa = 1 bar).

This European Standard specifies the requirements and associated test methods applicable to ductile iron fittings, ductile iron and mild steel couplings and flange adaptors and their joints to be used with poly(vinyl chloride) (PVC-U) pipes or polyethylene (PE) pipes. It is in conformity with EN 1452-1 to -5, ENV 1452-6 and -7 and EN 12201-1 to -5 respectively, for the construction of pipelines:
-   to convey water (e.g. water intended for human consumption);
-   with or without pressure;
-   to be installed below or above ground, inside or outside buildings.
This European Standard is not intended to cover sewerage applications, where additional requirements may be necessary.
This European Standard is applicable to fittings which are:
-   manufactured with socketed, flanged or spigot ends;
-   supplied externally and internally coated;
-   suitable for PE and PVC-U pipes with fluid temperatures between 0°C and 25°C, excluding frost, and for pressures up to 16 bar (PFA). For higher temperatures (up to 45°C for PVC-U or 40°C for PE) the PFA is derated as given in EN 1452 and EN 12201;
-   not intended for use in areas subjected to reaction to fire regulations.
NOTE 1   This does not preclude special arrangements for the products to be used at higher temperatures. Temperature limitations and pressure limitations are those coming from the PVC-U or PE pipes.
This European Standard covers ductile iron fittings, couplings and flange adaptors cast by any type of foundry process or manufactured by fabrication of cast components, as well as corresponding joints, in a size range extending from DN 60 to DN 700, to be used with pipes of external diameter from 63 mm to 710 mm.
As long as no equivalent European Standard exists for mild steel accessories, this European Standard also covers couplings and flange adaptors for use with PVC-U and PE pipes which are fabricated partly or entirely from mild steel as well as corresponding joints, in a size range extending from DN 60 to DN 700, to be used with pipes of external diameter from 63 mm to 710 mm.
This European Standard specifies requirements for materials, dimensions and tolerances, mechanical properties and standard coatings. It also gives minimum performance requirements for all components, including restrained and non-restrained flexible joints. Joint design and gasket shapes are outside the scope of this standard.
This European Standard does not cover fittings, couplings and flange adaptors intended to be used with different pipe materials other than PVC-U and PE.
NOTE 2    Fittings, couplings and flange adaptors complying with the requirements of this European Standard for PVC-U also usually meet the requirements for PVC-O and PVC-A pipes. Where this is not the case, the manufacturer is expected to declare this in the relevant literature.
NOTE 3   In this European Standard, all pressures are relative pressures, expressed in bars (100 kPa = 1 bar).

This document specifies the requirements and associated test methods applicable to wide tolerance ductile iron couplings and wide tolerance flange adaptors intended for use with pipe components made from a number of pipe materials (ductile iron, grey iron, PE, PVC-U, steel, fibre-cement), for providing a leak tight seal over a wide range of pipe external diameters :
-   to convey water (e.g. potable water) ;
-   with or without pressure ;
-   to be installed below or above ground, inside or outside buildings.
This standard is not intended to cover sewerage or gas applications, where other requirements may be necessary.
This standard specifies requirements for materials, dimensions and tolerances, mechanical properties and standard coatings of ductile iron products.
This standard covers ductile iron products cast by any type of foundry process or manufactured by fabrication of cast components, as well as corresponding joints, in a size range extending from DN 40 to DN 600, for an allowable operating pressure (PFA) up to 16 bar, for fluid temperatures between 0 °C and 25 °C excluding frost. For higher temperatures, up to 50 °C, additional type testing should be carried out.
It also gives performance requirements and associated test methods for restrained and non-restrained flexible joints. Joint design and gasket shapes are outside the scope of this standard.
NOTE 1   PFA may be limited depending on pipe materials effectively connected.
NOTE 2   In this standard, all pressures are relative gauge pressures, expressed in bars (100 kPa = 1 bar).
NOTE 3   EN 545 gives the specifications for the ductile iron fittings to be used with ductile iron pipes.
NOTE 4   EN 12842 gives the specifications for the ductile iron fittings to be used with PVC-U and PE pipes.

This European Standard specifies the requirements and associated test methods applicable to ductile iron fittings and their joints to be used with poly(vinyl chloride) (PVC-U) pipes for polyethylene (PE) pipes, in conformity with prEN 1452-1 to 7 and prEN 12201-1 to 7 respectively, for the construction of pipelines: - to convey water (e.g. potable water); - with or without pressure; - to be installed below or above ground, inside or outside buildings.

This European standard specifies the requirements and associated test methods applicable to ductile iron pipes, fittings, accessories and their joints for theconstruction of pipelines: - to convey water (e.g. potable water), - with or without pressure, - to be installed below or above ground.