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Standard
| JB/T 7550-2023 Switching butterfly valves for air separation plants (English Version) |
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Detail of JB/T 7550-2023
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Introduction of JB/T 7550-2023
本文件规定了气动双位式切换蝶阀的结构型式和技术要求，描述了相应的试验方法，规定了检验规则和标志及防护、包装和贮运。
本文件适用于大、中和小型空气分离设备中气体切换，公称压力为 PN6～PN40、公称尺寸为 DN80～DN1600；压力等级 Class150～Class300、公称尺寸 NPS3～NPS64 的气动双位式切换蝶阀的制造。
Contents of JB/T 7550-2023