Plug valve is a plug with a hole as the opening and closing parts of the valve. Plug body rotation with the stem in order to achieve opening and closing action. Because the movement between the sealing surface of the plug has a wiping effect, and when fully open can completely prevent contact with the flow medium, so it can also be used for the medium with suspended particles. Another important feature of the plug valve is that it is easy to adapt to multi-channel structure, so that a valve can get two, three, or even different channels of the four. This simplifies the design of piping systems, reduces valve usage, and requires some connection fittings in the equipment. In order to expand the application scope of plug valves, many new structures have been developed. Oil lubricated plug valve is one of the most important. Special grease
简体中文版
English
