A small, spring-loaded valve located inside a soda keg fitting The poppet is what seals the fitting when the hose fitting is removed Poppets are the most likely source of leaks on older soda kegs; replacements are available from various on-line vendors
a mushroom-shaped valve that rises perpendicular from its seat; commonly used in internal-combustion engines
A magical doll (also known as ritual effigies, voodoo dolls, Kolossos and Kolossoi) made for the purpose of spell-casting and/or ritual magic in witchcraft
One of certain upright timbers on the bilge ways, used to support a vessel in launching
A valve (as in an internal combustion engine) which consists of a sliding shaft with a disk on the end (the disk being shaped to alternately plug and unplug a matching port) and which is operated by springs and possibly cams interacting with the shaft
Machined, self aligning valve that incorporates an elastomer to provide a positive seal upon disconnection, no low pressure leakage, and generally provides higher flow that a ball valve