ISO 4427-3:2007 塑料管道系统 供水用聚乙烯管和配件 第3部分：配件

标准编号：ISO 4427-3:2007

中文名称：塑料管道系统 供水用聚乙烯管和配件 第3部分：配件

英文名称：Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply — Part 3: Fittings

发布日期：2007-08

标准范围

This part of ISO 4427 specifies the general aspects of fittings made from polyethylene (PE) for piping systemsintended for the conveyance of water for human consumption, including raw water prior to treatment andwater for general purposes.It also specifies the test parameters for the test methods to which it refers.In conjunction with the other parts of ISO 4427, it is applicable to PE fittings, their joints, to joints withcomponents of PE and to joints with mechanical fittings of other materials, intended to be used under thefollowing conditions:a) a maximum operating pressure (MOP) up to and including 25 bar1);b) an operating temperature of 20 °C as the reference temperature.NOTE 1 For applications operating at constant temperatures greater than 20 °C and up to 40 °C, see ISO 4427-1:2007,Annex A.NOTE 2 ISO 4427 covers a range of maximum operating pressures and gives requirements concerning colours andadditives. It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, takinginto account their particular requirements and any relevant national guidance or regulations and installation practices orcodes.It is applicable to fittings of the following types:? fusion fittings — electrofusion fittings, butt fusion fittings and socket fusion fittings (see Annex A);? fabricated fittings (see Annex B);? mechanical fittings;? flanged fittings.1) 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.

标准预览图