CAVITATION CHECK FOR BUTTERFLY VALVE

摘要

PURPOSE: A butterfly valve for preventing cavitation is provided to prevent the cavitation with a porous plate and to make the manufacture and installation convenient. CONSTITUTION: A butterfly valve for preventing cavitation comprises a connection part(40), a porous pipe(50) and a rubber sealing(60). The connection part comprises a plate(41) formed on an outlet of a body(10) to be detached. The porous pipe is inserted inside the connection part at a regular interval. A fixing plate(51) is formed in the outer circumference to be fixed to the plate of the connection part. The porous pipe comprises a porous plate(52) preventing the cavitation. The rubber sealing is formed in the outer circumference of the porous pipe inserted inside the connection part. The rubber sealing is supported with the fixing plate of the porous pipe.