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Chinese Standard: GB/T 12236-2008

Steel swing check valve for petroleum,petrochemical and allied industries

NEQ  BS 1868:1975

全国阀门标准化技术委员会(SAC/TC 188)

本标准规定了螺栓连接阀盖钢制旋启式止回阀(简称为“止回阀”)的结构形式、技术要求、材料、试验方法和检验规则、标志、防腐、涂漆、包装和储运等。
本标准适用于螺栓连接阀盖的法兰连接或焊接的钢制旋启式止回阀。其参数为:公称压力PN16~〖JP〗PN420,公称尺寸DN50~DN600,使用温度-29 ℃~538 ℃,使用介质石油、化工、天然气及相关制品等。

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