Fire hydrant locking sprinkler cap, hydrant valve seals and lubrication access
作者： George Sigelakis
DOI:
关键词: Structural engineering 、 Engineering 、 Lubrication 、 Marine engineering 、 Standpipe (firefighting) 、 Nut
摘要: A method for delivering water through a fire hydrant is described. The includes unlocking sprinkler cap control lock on the hydrant, removing to access operating nut of and activating deliver ports in at least one hydrant. with having plurality lock, wherein covers prevents also Systems methods lubricating improved sealing surfaces valves are
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