SELF CLOSING VALVE
| model | Nominal diameter | Body material | connection |
|---|
39A-50 to 100 |
|
|
|
Spring Type ;
39A-50 to 100
NK Steel-vessel Rules D. 13.5.6 regulates that automatic-closing valve must be installed on the drain pipe of the deep tank.
In operation, the drain pipe, which leads the drain water at the top of deep tanks, must be installed with the automatic-closing valve, and must be set at where people can reach and operate manually.
Counter-weight Type ;
39A-W-50 to 100
The backflow prevention valve is set up for bilge that cannot be move between cargo compartments of RORO vessel and car carrier vessel.
Moreover, the valve was installed at every vertical drain pipe of deck in order of to prevent the outflow of fire-distinguishing if on fire.
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