China big size large diameter plug valve manufacturer,factory and supplier for big plug valve,which is hard seal seal, pressure balanced inverted structure,big size large diameter plug valve is used in place of a big gate valve where the quick operation is required.High temperature lubricated plug valve can be used in high-pressure temperature services.

In the open position, this bored passage is in line with the flow. When the plug is turned 90° from the open position, the solid part of the plug blocks the flow.
 

China big size big diameter plug valve technical Specification

China big size big diameter plug valve main parts material