$10
Cast iron swing check valves
全国阀门标准化技术委员会(SAC/TC 188)
本标准规定了铁制旋启式止回阀的结构型式和基本参数、技术要求、试验方法、检验规则、标志和供货要求。
本标准适用于公称压力PN2.5~PN25,公称尺寸DN50~DN1800,介质为水,法兰连接的灰铸铁和球墨铸铁制旋启式止回阀(以下简称“止回阀”)。
This standard is the original Chinese electronic standard.
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