Two-valved
131Sourwood — Taxobox name = Sourwood image width = 240px regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Ericales familia = Ericaceae genus = Oxydendrum DC. species = O. arboreum binomial = Oxydendrum arboreum binomial authority = (L.) …
132Reed valve — Reed valves restrict flow of gases to a single direction and consist of thin flexible metal or fiberglass strips fixed on one end that open and close upon changing pressures across opposite sides of the valve. They operate in a similar manner to… …
