National standard flange ball plug valve

Ball valve product series National standard flange ball plug valve Shoulong ball valve National standard flange ball plug valve Introduction
The most important valve seat sealing ring material of the ball valve is polytetrafluoroethylene, which is inert to almost all chemical substances and has It has the comprehensive characteristics of small friction coefficient, stable performance and not easy to age, wide temperature range and excellent sealing performance. However, the physical properties of PTFE, including high expansion coefficient, sensitivity to cold flow and poor thermal conductivity, require that the valve seat seal must be designed around these properties. Plastic materials for valve seat seals also include filled Teflon nylon and many other materials. But when the sealing material hardens, the reliability of the seal will be damaged, especially under low pressure differential conditions. In addition, synthetic rubber such as nitrile rubber can also be used as a valve seat sealing material, but its applicable media and temperature range are limited. In addition, if the medium is not lubricated and synthetic rubber is used, the ball will easily get stuck.
National standard flange ball plug valve parameters
Product model
Product caliber
Product pressure
Product material stainless steel | cast steel
Used medium water, oil, steam and gas Wait