Design amp; development of equibrated type disc for regulating type globe valves for large size and its optimisation using fea (ansys))

摘要

New equibrated type disc for regulating type globe valve makes possible to manufacture valves sizes above 12 inches and which can bear more than 10 ton fluidic load. The conventional Globe valves as applicable product standards are commonly of plug type,flat disc or parabolic type disc as obturator in the shell of the valve and form the seating face with the body seat ring, but as the fluidic load below the disc form the upstream side increases ,it subjects to the direct load on the disc against valve closure torque which increases abruptly high. As the valve size increases for which the conventional disc get deformed as the seating force and the thrust load (through torque) are not in align with each other .The present invention of disc is in equibrated form for which the thrust (against torque) is uniformly distributed on the outer periphery of disc equally opposite to the seating face thus subject to low valve of closure torque and no hydro visible leakages.