ʻO ka valve ka mea hoʻomalu i ka ʻōnaehana lawe wai, me nā hana o ka ʻoki ʻana, ka hoʻoponopono, ka hoʻohuli ʻana, ka pale ʻana i ka countercurrent, ka hoʻomau ʻana i ke kaomi, ka hoʻohuli a i ʻole ka hoʻoluhi ʻana i ke kaomi.
Hoʻohana ʻia ʻo Valvalve i ka ʻōnaehana hoʻokele wai, mai ka valve stop maʻalahi loa a hiki i ka ʻōnaehana hoʻokele ʻakomi paʻakikī, ʻokoʻa nā ʻano a me nā kikoʻī.Hiki ke hoʻohana ʻia nā pāpaʻi e hoʻomalu i ke kahe ʻana o nā ʻano wai like ʻole e like me ka ea, ka wai, ka mahu, nā ʻano media corrosive, ka lepo, ka ʻaila, ka metala wai a me nā media radioactive.E like me ka mea, ua maheleia ka pahu i loko o ka hao kiwikā, hoolei kila kiwikā, kuhiliʻole kila kiwikā (201,304,316, etc.), chromium molybdenum kila kiwikā, chromium molybdenum vanadium kila kiwikā, lua-phase kila kiwikā, plastic kiwikā, non. - nā kiwi maʻamau maʻamau, etc.