... 阀杆填料 stem packing 阀杆填料函压盖 valve-rod stuffing box gland 阀环 valve ring ...
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主阀环 [机] main valve ring
气动阀环 air valve ring
滑阀环 slide valve ring
阀杆环 stem ring ; st ring
阀座环 seat ring ; valve cup ring ; sealing ring ; seupon ring
环形阀 [机] annular valve ; annular ring valve ; double beat valve ; ring valve
图中阀环 valve rings
环状阀 annular ring valve ; ring valve ; annular valve
自动循环阀 Automatic Recirculation Valve
拆卸压进去的安全阀阀座和阀座o形环。
在安装系列4700夹管阀时，建议在阀门法兰后面采用镀锌钢支撑环加固。
When installing the Series 4700, it is recommended that galvanized steel back up rings be used behind the valve flanges.
保持阀芯头与阀座环对中，对于严密关闭是重要的。
To maintain the spool in the head and valve seat rings for tight closure is important.
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