ʻO nā valves nā mea pipeline i hoʻohana ʻia e wehe a pani i nā pipeline, kaohi e kahe, hoʻoponopono a hoʻokele i nā ʻāpana (ka wela, kaomi, a me ke kahe) o ka mea lawe. E like me kāna hana, hiki ke hoʻokaʻawale ʻia i loko o ka valve pani, ka valve nānā, ka valve hoʻoponopono, a pēlā aku.

ʻO ka valve kahi mea hoʻomalu i ka ʻōnaehana lawe wai, nona nā hana o ka ʻoki ʻana, ka hoʻoponopono, ka hoʻohuli ʻana, ka pale ʻana i ka backflow, stabilization, diversion or overflow, a me ka hoʻoluhi ʻana. ʻO nā valve i hoʻohana ʻia i nā ʻōnaehana hoʻokele wai, mai ka maʻalahi pani pani a hiki i ka paʻakikī paʻakikī i hoʻohana ʻia i nā ʻōnaehana hoʻokele aunoa, he ʻano ākea 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 like ʻole, ka lepo, ka ʻaila, ka metala wai, a me nā mea radioactive media. Hoʻokaʻawale ʻia nā kiwi i loko o nā kiwi hao, nā kiwi kila, nā kiwi kila, chromium-molybdenum steel valves, chromium-molybdenum vanadium steel valves, duplex steel valves, plastic valves, non-standard customized valves, etc.