ICS 91.140.10 P 46 茵昌 中华人民共和国国家标准 GB/T37827一2019 城镇供热用焊接球阀 Weldedbal llvalveforurbanheating 2019一08一30发布.. 2020一07一01实施 国家市场监督管理总局 中国国家标准化管理委员会 发布 GB/T 37827一 2019 目次 前言 · ················ ·········································· ······················ ····················· ·················.. 1 1111范围 · ································ ············ ······························· ······················ ··················.. 1 2规范性引用文件 · ················· ············ ······························· ··············. ........................... 1 3术语和定义 · ······················· ············ ······························· ······················ ··········. .......... 2 4标记和参数 · ······················· ············ ······························· ······················ ··················.. 3 5结构 · ································ ············ ······························· ······················ ··················.. 3 6一般要求 · ·························· ············ ······························· ······················ ··················.. 6 7要求 · ································ ············ ······························· ······················ ··················.. 9 8试验方法 · ······· ·········································· ······················ ····················· ·················.. n 9检验规则 · ······· ·········································· ······················ ····················.. 2 · ·················110标志 · ·········· ·········································· ······················ ····················· ·················1 .. 4 n防护、· ···································· ······················ ····················· ··········. .......1 包装和贮运 .. 4 附录A(规范性附录)袖管 · ··························· ······················ ··········