兄弟劳逸结合啊。Very Important Person
chongzi889
2008-12-11, 02:49 PM
The Fully Lined Plug Valve (http://www.corrosion-resistant-valves.com/Lined-Plug-Valve.html) also has adjustable chevron PTFE packing. The six ring set, combined with the fully lined bonnet, is much more substantial than the thin diaphragms used in other lined plug valve designs. This means there is little chance of either corrosive stem leakage onto the bonnet of the lined plug valve (http://www.corrosion-resistant-valves.com/Lined-Plug-Valve.html) or fugitive emissions to the atmosphere.
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