BS/EN 1451-1-2017 pdf download.Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure – Polypropylene (PP) Part 1: Specifications for pipes, fittings and the system.
This part of EN 1451 specifies the requirements for solid-wall polypropylene (PP) pipes, fittings and the system intended for:
— soil and waste discharge applications (low and high temperature) inside buildings (application area code B”);
— soil and waste discharge applications (low and high temperature) for both inside buildings and buried in the ground within the building structure (application area code “BD”).
The intended use is reflected in the marking of products by “B” or”BD.
NOTE 1 For use buried in the ground within the building structure are intended only those components marked with 130”, with dimensions equal to or greater than 75mm and nominal ring stiffness of at least SN4.
This part of EN 1451 is also applicable to PP pipes and fittings and the system intended for the following purposes:
— ventilating part of the pipework in association with discharge applications;
— rainwater pipework within the building structure.
It also specifies the test parameters for the test methods referred to in this standard.
This European Standard covers a range of nominal sizes, a range of pipes and fittings series and gives recommendations concerning colours.
NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections froni these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes, e.g. IEN/TR 138011 LII.
NOTE 3 Pipes, fittings and other components conforming to any of the plastics product standards listed in Annex B can be used with pipes and fittings conforming to this European Standard, provided they conform to the requirements for joint dimensions given in Clause 6 and to the requirements of Table 18.
This standard applies to pipes and fittings, marked with “B”, which are intended to be used inside buildings and outside buildings fixed onto the wall.
It applies to pipes and fittings, marked with “BD”, which are intended to be used for both inside buildings and buried in the ground within the building structure.
This standard is applicable to PP pipes and fittings of the following types:
— plain-ended,
— with integral elastomeric ring seal socket.
7.3 Dimensions of fittings
7.3.1 Outside diameters
The mean outside diameter dem of the spigot end shall conform to Table 2 or Table 3, as applicable. 7.3.2 Design lengths
The design lengths of fittings (see Figure 6 to Figure 19) shall be declared by the manufacturer.
NOTE The design lengths of a fitting are intended to assist in the design of moulds and are not intended to be used for quality control purposes. ISO 265-1 LS1 can be used as a guideline.
7.3.3 Wall thickness
The minimum wall thickness emin of the body or the spigot end of a fitting shall conform to Table 4 or Table 5. as applicable, except that a reduction of 5 % resulting from core shifting is permitted. In such a case the average of two opposite wall thicknesses shall be equal to or exceed the values given in Table 4 or Table 5, as applicable.
Where a fitting or adaptor provides for a transition between two nominal sizes, the wall thickness of each connecting part shall conform to the requirements for the applicable nominal size. In such a case the wall thickness of the fitting body is permitted to change gradually from the one wall thickness to the other.
Where a sealing ring is located by means of a retaining cap or ring (see Figure 2) the wall thickness in this area shall be calculated by addition of the wall thickness of the socket and the wall thickness of the retaining cap or ring at the corresponding places in the same cross-section.
The wall thickness of fabricated fittings, except for spigot end and socket, may be changed locally by the fabrication process, provided that the minimum wall thickness of the body conforms to e3,mln as given in Table 8 or Table 9, as appropriate for the pipe series S concerned.BS/EN 1451-1-2017 pdf download.