公开(公告)号：US20180045321A1

公开(公告)日：2018-02-15

申请号：US15650872

申请日：2017-07-15

申请人： HS Valve Co., Ltd. ,  M.T. DEASON COMPANY, INC.

发明人： Joungdae SEO ,  Youn Gil JUNG ,  Hyunseok YUN

IPC分类号： F16K5/06 ,  F16K5/20 ,  F16K27/06 ,  F16K1/228

CPC分类号： F16K5/0673 ,  F16K1/2285 ,  F16K5/201 ,  F16K27/067

摘要： A dual sealing ball valve comprises a valve body, conduit line connectors coupled to both sides of the valve body, a hollow ball disposed in the valve body, a sheet holder mounted on an inner circumferential surface of at least one of the conduit line connectors, a main sheet tightly contacting the ball around an inlet of the hollow ball, and an elastic sheet mounted on the front surface of the sheet holder. The sheet holder includes a sheet ring supporting the main sheet and the elastic sheet in a front direction, supporting the elastic sheet towards the main sheet, and pushed in the front direction by a pressurizing retainer and a sheet cap coupled to the sheet ring and contacting the main sheet to pressurize the main sheet in a rear direction and towards the elastic sheet.