Electric vacuum breaker valve Beihai vacuum breaking valve pneumatic vacuum breaker Certified

Supply valves, gate valves, ball valves, butterfly valves, vacuum valves, steam traps, check valves, filters, sewage valves, plug valves, foot valve, the latest valve processing dealer, valve processing price, valve processing price quotes, valve sales charts, etc., for businessmen to provide the most valuable information of the valve. Main valve seat ring material is polytetrafluoroethylene (PTFE). It is almost all chemical substances are inert and have low friction coefficient, stable performance, easy to aging, wide temperature and excellent sealing performance of the integrated features. However, the physical properties of PTFE has a higher coefficient of expansion of the sensitivity of the cold and poor thermal conductivity, the seat seal design requirements must be around these features. Seat sealing plastic materials, including PTFE family and filled PTFE, nylon and other materials. Supply valves, gate valves, ball valves, butterfly valves, vacuum valves, steam traps, check valves, filters, sewage valves, plug valves, foot valve, the latest valve processing dealer, valve processing price, valve processing price quotes, valve sales charts, etc., for businessmen to provide the most valuable information of the valve. Teach you to improve the life of the valve. One approach, for an increase in the bottom of the packing washer, the washer below plus a spring (spring preload needs to be calculated), when the packing wear and tear, due to the spring, will re-compression packing to seal. This approach is currently using the test, open and close only reach 50-100 million times not to disclose, use square during the annual overhaul, re-compression packing gland, can reduce the normal maintenance. Another approach is to use hydraulic, pneumatic sealing technology, change the original valve design ideas, using tanks at the packing slip ring seal, increasing the O-rings (need to calculate the friction, seal than the pressure in order to determine the slip ring and 0 -ring number). Using this approach, to achieve open and close two million times not to disclose, but the O-rings to aging, use of time only five years, while the cost is higher. Supply valves, gate valves, ball valves, butterfly valves, vacuum valves, steam traps, check valves, filters, sewage valves, plug valves, foot valve, the latest valve processing dealer, valve processing price, valve processing price quotes, valve sales charts, etc., for businessmen to provide the most valuable information of the valve. EHV can be used to control the water, steam, oil, gas, mud, corrosive media, liquid metals and radioactive fluids and other types of fluid flow, the valve working pressure from 0.0013MPa to 1000MPa, the working temperature from 1430 ℃ ultra-low temperature to a high temperature of -270 ℃ of.