ʻO ka valve kekahi o nā valve block kūpono loa i hoʻohanaʻia i nāʻoihana e like me ka hoʻomehana kūlanakauhale, ke kinoea kūlanakauhale, kaʻoihana kemika, ka mana, ka pipeline kinoea maoli, kaʻoihana māmā, ka meaʻai, ka lole a me nā mea'ē aʻe. No laila he kaulana maikaʻi i waena o nā mea hoʻohana.

ʻOihana Nukelea, ʻoihana kemika ʻaila, ʻoihana uila a me ka ʻoihana aerospace, a me ka ʻenehana kaʻina hana maʻalahi. . . . . . koi i loko o nā valves ʻoihana honua, me ka wili.