| 摘要 |
The present invention provides a main valve for extinguishing a fire in a ship comprising: a bonnet having a housing (112), which is installed above a valve body (10), and a gas injection path (113), which is formed with a certain height on the inner surface of one side of the housing (112); a gas injection terminal (20) installed to penetrate one side of the gas injection path (113) of the bonnet (110); an actuator (120) including a driving rod (122) and a head (124) mounted at the intermediate vertical height of the driving rod (122); a first piston (130) mounted on an end part at the other side of the driving rod (122); an auxiliary switchgear (140) having a movable terminal (142) and an operation handle (146) fixated and combined with the movable terminal (142); a first elastic means (150) enveloping the driving rod (122); a stem (170) vertically inserted into the valve body (10); a second piston (180) mounted on an end part at the other side of the stem (170); and a second elastic means (190) enveloping the stem (170). |
