| 摘要 |
A check-in ball valve with dual sealing seat is provided to reduce wear and damage of sealing member, and improve incredibly airtightness between a check valve and a ball valve. A check-in ball valve with dual sealing seat comprises a body(11) in which the lead-in(11a) and exhausting part(11b) of the respective fluid are formed in the either side; a handle(12) formed in the upper side of the body; a ball valve body(13) opening and closing the inside of the body through the rotation of the handle; a check valve body(16) in which a channel open and close part(16a) opening and closing the inside of a channel(13a); an engaging groove formed inside the ball valve body contacting with a channel open and close part of the check valve body; a main sealing member(22), fitted into an engaging groove of the ball valve body, whose end part is equipped with a sill and an auxiliary sealing member(23) maintaining sealability, compressed by contacting with a channel open and close part of the check valve body.
|
