What is a eccentric elastic sealing butterfly valve？ Double eccentric butterfly valve disc periphery and sealing valve seat are processed into semi-spherical, by the outer sphere of the disc extrusion sealing valve seat inner sphere elastic deformation to achieve the purpose of closing. Double eccentric butterfly valves usually use tetrafluoroethylene materials as their sealing seats, and metal sealing valve seats can also be used to expand its application in the high temperature field. However, the sealing of the double eccentric butterfly valve of the metal seal valve is still a position sealing structure, that is the seal of the disc and the seat is connected as a line. It can not withstand high pressure, application in the high pressure system will inevitably lead to large leakage. Therefore, in the high pressure or strict system that must be cut off, you should try to avoid the use of double eccentric butterfly valves of the metal seal valve. Advantages of the eccentric elastic sealing butterfly valve： 1.”U” sealing ring Using “U” stainless steel sealing ring, the seat has a certain elasticity. In the case of high temperature and low temperature, it has excellent sealing with the disc. 2.Easy to disassemble Elastic metal...
