The minimum required marking of pipes shall conform to Table 16.
Pipes shall be marked at intervals of maximum 1 m, at least once per pipe. Pipes with a length less than 1 m may be marked with a label at least once per pipe.
Table 16: Minimum required marking of pipes
Aspects Marking or symbol Minimum durability of
legibility of marking – Number of the standard
– Manufacturer's name and / or trade mark – Nominal size– Minimum wall thickness – Material
– Application area code:
– For application area “BD”: Pipe series – Type of socket
– Manufacturer's information
EN 1519 XXX e.g. DN 110 e.g. 3,4 PE
“B” or “BD”
S 12,5 e.g. type N
1)
a a a a a a a b
1) For providing traceability the following details shall be given: a a) the production period (year) in figures or in code;
b) a name or code for the production site if the manufacturer is producing at different sites.
Table 17: Minimum required marking of fittings
Aspects Marking or symbol Minimum durability of legibility
of marking – Number of the standard
– Manufacturer's name and/or trade mark – Nominal size
– Nominal angle – Material
– Application area code – For application area “BD”:
Minimum wall thickness or pipe series – Type of socket
– Manufacturer's information
EN 1519 xxx e.g.DN 110 e.g. 60 ° PE
“B” or “BD”
e.g. 4,2 or S 12,5 e.g. type N
1)
b a a b a a a b b
1) For providing traceability the following details shall be given:
a) the production period (year) in figures or in code;
b) a name or code for the production site if the manufacturer is producing at different sites.
12 Installation of piping systems
For the installation of pipes and fittings conforming to this standard, national and/or local requirements and relevant codes of practice apply.
In addition the pipe manufacturer may give a recommended practice for installation which refers to transport, storage and handling of the pipes and fittings as well as to the installation in accordance with the applicable national and/or local instructions.
For external above ground application additional requirements depending on the climate shall be agreed between the manufacturer and the purchaser.
Annex A (informative)
General characteristics of PE pipes and fittings A.1 General
EN 476 specifies the general requirements for components used in discharge pipes, drains and sewers for gravity systems. Pipes and fittings conforming to this standard fully meet these requirements. Further the following information is given.
A.2 Material characteristics
Pipes and fittings conforming to this standard have generally these characteristics:
Modules of elasticity E(1min) > 700 MPa;
– Average density ằ 0,94 g/cm3;
– Average coefficient of linear
thermal expansion ằ 0,2 mm/mìK;
– Thermal conductivity ằ 0,4 W/mìK;
– Specific heat capacity > 2 300 to 2 900 J/kg×K;
– Surface resistance > 1013 Ω.
A.3 Ring stiffness
The ring stiffness of pipes conforming to this standard is determined in accordance with EN ISO 9969 and is as follows:
³ 4 kN/m2 for S 12,5.
When a fitting conforming to this standard has the same wall thickness as the corresponding pipe, the stiffness of this fitting, because of its geometry, is equal to or greater than the stiffness of that pipe.
The actual value of stiffness of the fittings can be determined from ISO/DIS 13967:1995.
A.4 Chemical resistance
PE piping systems conforming to this standard are resistant to corrosion by water with a wide range of pH-values such as soil and waste water, rain water, surface water and ground water.
If piping systems conforming to this standard are to be used for chemical contaminated waste water, such as industrial discharges, chemical and temperature resistance have to be taken into account.
For information about the chemical resistance of PE guidance is given in ISO/TR 10358:1993 and for rubber materials in ISO 7620:1986.
Bibliography
prEN 476
General requirements for components used in discharge pipes, drains and sewers for gravity systems prEN 1329
Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure – Unplasticized poly(vinyl chloride) (PVC-U)
EN 1401-1
Plastics piping systems for non-pressure underground drainage and sewerage –
Unplasticized poly(vinyl chloride) (PVC-U) – Part 1: Specifications for pipes, fittings and the system EN 1451
Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure – Polypropylene (PP)
prEN 1453
Plastics piping systems with structured-wall pipes for soil and waste discharge (low and high temperature) inside buildings – Unplasticized poly(vinyl chloride) (PVC-U)
EN 1455
Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure – Acrylonitrile-butadiene-styrene (ABS)
EN 1519-6
Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure – Polyethylene (PE) – Part 6: Recommended practice for installation
EN 1565
Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure – Styrene copolymer blends (SAN+PVC)
EN 1566
Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure – Chlorinated poly(vinyl chloride) (PVC-C)
EN 1852-1
Plastics piping systems for non-pressure underground drainage and sewerage – Polypropylene (PP) – Part 1: Specifications for pipes, fittings and the system prEN 12056-1
Gravity drainage systems inside buildings – Part 1: Scope, definitions, general and performance requirements prEN 12666-1
Plastics piping systems for non-pressure underground drainage and sewerage – Polyethylene (PE) – Part 1: Specifications for pipes, fittings and the system
ISO 7620:1986
Rubber materials – Chemical resistance ISO/TR 10358:1993
Plastics pipes and fittings – Combined chemical resistance classification table ISO/DIS 13967:1995
Plastic piping systems – Thermoplastics fittings – Determination of the short term stiffness RAL 840-HR1)