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Old 11-09-2008
sailaway21 sailaway21 is offline
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sailaway21 is just really nice sailaway21 is just really nice sailaway21 is just really nice sailaway21 is just really nice
I think you'll find that subs use butterfly valves that are backed up by gate valves. Double valving thru-hulls is common practice on ships. I've never seen a square head **** or a ball valve on any ship..at least in a major piping system.
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