1、
Chemtrol Union-End Ball Valves can be fitted with socket, threaded, or flanged end connections.
首先先从阀腔上把管接螺母和端口连接件拆卸下来。
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2、
All valves with socket, thread, or SR thread end connectors are True Union style only.
所有承插 、 螺纹或SR螺纹连接 端口的阀门都只是真活接结构.
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