A significant characteristic of cock - — To adapt to the multi channel structure

Cock important feature is that it is easy to adapt to the multi-channel structure, so that a valve can get two, three or even four different port. Many different kinds of plug valve, generally can be divided into: tight box, packing and sealing. Tight cock, commonly used in PN less than or equal to 0. 6 mpa occasions; Filler plug valve, a large number of used for nominal pressure PN > 1. The occasion of 0 mpa. Self-styled plug valve, mainly by the pressure of the medium itself, more for air medium. Sealing structure of the spring can be preloaded and compaction effect. In addition to the three links, four general formula plug valves, more for distribution, reversing, etc.