標準號：BS EN ISO 1452-4-2009
中文標準名稱：供水、填埋和地上排水、排污受壓的塑料管系統.硬質聚合物(氯乙烯)(PVC U).閥門
英文標準名稱：Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC U) - Valves
標準類型：Q81
發布日期：2010/1/31 12:00:00
實施日期：2010/1/31 12:00:00
中國標準分類號：Q81
國際標準分類號：23.040.20;23.040.45;91.140.60;93.030
引用標準：ISO 580;ISO 1167-1;ISO 1167-3;ISO 1183-1-2004;ISO 1452-1-2009;ISO 1452-2-2009;ISO 1452-3-2009;ISO 1452-5;ISO 2507-1-1995;ISO 2507-2-1995;ISO 3126;ISO 7686;ISO 16135;ISO 16136;ISO 16137;ISO 16138;ISO 16139;ISO 21787;EN 802
適用范圍：This part of ISO 1452 specifies the characteristics of valves made from unplasticized poly(vinyl chloride) (PVC-U) for piping systems intended for water supply and for buried and above-ground drainage and sewerage under pressure.It also specifies the test parameters for the test methods referred to in this part of ISO 1452.In conjunction with ISO 1452-1, ISO 1452-2, ISO 1452-3 and ISO 1452-5 it is applicable to PVC-U valves with components of PVC-U, other plastics and non-plastics materials intended to be used for the following:a) water mains and services buried in ground;b) conveyance of water above ground for both outside and inside buildings;c) buried and above-ground drainage and sewerage under pressure.It is applicable to valves in piping systems intended for the supply of water under pressure up to and including 25 °C (cold water) intended for human consumption and for general purposes as well as for waste water under pressure.This part of ISO 1452 is also applicable to valves for the conveyance of water and waste water up to and including 45 °C. For temperatures between 25 °C and 45 °C, Figure A.1 of ISO 1452-2:2009 applies.NOTE 1 The producer and the end-user can come to agreement on the possibilities of use for temperatures above 45 °C on a case-by-case basis.This part of ISO 1452 is applicable to valves of the following types:- valves for solvent cementing;- valves for elastomeric ring seal joints;- valves for flanged joints.NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.