Technology and Operations  
This forum is for discussing technological & operational matters pertaining to U-boats. 
RE: Kingston valves?
Posted by: Garth ()
Date: October 13, 2000 04:54AM

Hi, Geoff,

Most of the older wwI wwII subs had saddle-tanks. These were outside the pressure hull, and open at the bottom. On top were the Kingston Valves, usually operated by compressed air, but with a system that allowed them to be operated by hand as well. On submerging, the valves would be opened, allowing air to escape through them, and once the boat had reached a certain depth (for some it was periscope depth), they were closed again. To surface, compressed air was blown into the tanks, displacing the seawater and making the sub buoyant again.

Kingston Valves, or their modern counterparts, are still used on some vessels, particularly Diesel-Electric boats.

Hope that helps, no drawings, unfortunately,

Garth

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Subject Written By Posted
Kingston valves? Geoff 10/12/2000 05:00PM
RE: Kingston valves? Garth 10/13/2000 04:54AM
RE: Kingston valves? Geoff 10/16/2000 05:45PM


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