Type A Box Valve drawing

Scale 1:2. Plan shows a box valve (14 inch x 14 inch) for ventilation trunks for magazine cooling arrangements. A Portsmouth Dockyard Manager of Constructive Department stamp, dated 18 March 1908.

Object Details

ID: NPD3023
Type: Technical drawing
Display location: Not on display
Creator: HM Admiralty
Date made: 18 March 1908
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 820 mm x 1570 mm
Parts: Box
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