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发表于 2009-9-28 15:32
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来自: 中国山东济南
应该大部分都是用止回阀的
贴点abs规范给你参考
Overboard Gravity Discharges from Spaces below the Freeboard Deck on Vessels
Subject to SOLAS Requirements (2007)
For vessels subject to SOLAS requirements, instead of the requirements identified in
4-6-4/3.3.1 above, each separate gravity discharge led through the shell plating from spaces
below the freeboard deck is to be provided with either one automatic non–return valve fitted
with a positive means of closing it from above the freeboard deck or with two automatic non–
return valves without positive means of closing, provided that the inboard valve is situated
above the deepest subdivision load line (DSLL) and is always accessible for examination
under service conditions. Where a valve with positive means of closing is fitted, the operating
position above the freeboard deck shall always be readily accessible and means shall be
provided for indicating whether the valve is open or closed.
也可以参考Protection from Sea Water Entry (2005) absrule 4-6-4 3.3 |
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