标准编号：ISO 4437-4:2022
中文名称：燃气供应用塑料管道系统 聚乙烯（PE） 第4部分：阀门
英文名称：Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 4: Valves
发布日期：2022-11
标准范围
This document specifies the characteristics of valves made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels. It is applicable to unidirectional and bi-directional isolating valves with spigot ends or electrofusion sockets intended to be fused with PE pipes or fittings conforming to ISO 4437−2 and ISO 4437-3 respectively. Valves made from materials other than PE, designed for the supply of gaseous fuels conforming to the relevant standards can be used in PE piping systems according to ISO 4437 series, provided that they have PE connections for butt fusion or electrofusion ends, including integrated material transition joints, conforming to ISO 4437-3.
It also specifies the test parameters for the test methods referred to in this document.
立即下载标准文件