A plug valve is a valve that uses a plug body with a through-hole as the opening and closing member, and achieves the opening and closing action through the rotation of the plug body and valve stem. Plug valves have a simple structure, quick opening and closing, and low fluid resistance. In recent years, as one of the earliest valves adopted by people in history, they have not been replaced by ball valves and other types of valves. Instead, the market is showing an increasingly popular trend.  

1. The inlet and outlet windows of the valve body are designed with a double groove sealing ring structure. During the rotation of the plug, the sealing pressure between its sealing pairs gradually changes until it reaches the fully open or fully closed position, generating sufficient sealing pressure and achieving zero leakage of the sealing pairs.  
2. The double groove sealing ring can stabilize the PTFE liner inside the valve body without displacement, and can also absorb the slight deformation caused by temperature differences in the liner. At the same time, it has a strong wiping effect between the liner and the plug, which also improves the service life of the sealing surface.  
3. The entire sealing process can be approximated as independent of the pressure inside the pipeline.  
4. PTFE lining is filled with different materials according to the operating temperature and working medium, ensuring good lubrication and long service life. Introduction to Galilee plug valve: The opening and closing member of the plug valve is a perforated cylinder that rotates around an axis perpendicular to the channel to achieve the purpose of opening and closing the channel. Plug valves are mainly used for opening and closing pipelines and equipment media.

The main advantages of plug valves are as follows: suitable for frequent operation, quick opening and closing, and lightweight. Low fluid resistance. Simple structure, relatively small volume, light weight, and easy maintenance. The sealing performance is not limited by the installation direction, and the flow direction of the medium can be arbitrary. No vibration, low noise. Plug valves can be divided into four types according to their structural forms: tight fitting plug valves, self sealing plug valves, packing plug valves, and oil filled plug valves. According to the channel form, it can be divided into three types: straight through, three-way, and four-way.

X49W-16P plug valve