(1) Valves no ke kūkulu ʻana i ke kūlanakauhale: hoʻohana mau ʻia nā kīwaha haʻahaʻa haʻahaʻa i nā ʻōnaehana kūkulu kūlanakauhale, a ke hoʻomohala nei i kēia manawa i ke ʻano o ka mālama ʻana i ke kaiapuni a me ka mālama ʻana i ka ikehu.

ʻO nā kiwipa pāpaʻa paʻa kaiapuni, nā kiwi kaulike, nā kiwikā pepeke laina waena, a me nā kiwikā pepeke i hoʻopaʻa ʻia metala ke hoʻololi mālie nei i nā kiwi puka hao haʻahaʻa.ʻO ka hapa nui o nā valve i hoʻohana ʻia i loko o nā hale kaona o ka hale he mau pale kaulike, nā ʻīpuka i hoʻopaʻa paʻa ʻia, nā kīwaha butterfly, etc.

(2) ʻO nā kiwi no ka hoʻomehana ʻana i ke kūlanakauhale: ʻo ka nui o nā kiwi lele lele i hoʻopaʻa ʻia metala, nā kiwi kaulike kaulike a me nā kiwi pōlele i kanu pono ʻia i loko o ka ʻōnaehana hoʻomehana kūlanakauhale.Hoʻoponopono kēia mau valves i ka pilikia o ka hydraulic imbalance vertical a horizontal o ka pipeline, hoʻokō i ka mālama ʻana i ka ikehu, a hoʻemi i ka hana wela.ka pahuhopu o.

(3) Valves no ke kūlanakauhale kinoea: City kinoea helu no ka 22% o ka holoʻokoʻa maoli kinoea market, a me ka nui o na kiwikā ua nui a he nui ano.ʻO ka mea nui e pono ai i ka pōpō pōleʻa, ka valve plug, ka valve hoʻemi hoʻemi, ka valve palekana.

(4) Valves no nā pipeline lōʻihi: ʻo nā pipeline lōʻihi ka nui o ka aila ʻaila, nā huahana i hoʻopau ʻia a me nā pipeline kūlohelohe.ʻO nā kiwikā i makemake nui ʻia e ka hapa nui o kēia mau paipu, he kila kila ʻekolu ʻāpana piha piha i ka ʻīpuka, anti-sulfur flat gate valve, safety-run, and check valves.

(5) Valves no ka mālama 'ana i ke kaiapuni: 'O ka 'ōnaehana ho'olako wai i loko o ka 'ōnaehana ho'omalu kaiapuni o ka 'āina e pono e ho'ohana i ka midline butterfly valve, soft-sealed gate valve, ball valve, and exhaust valve (maloo e wehe i ka ea i loko o ka paipu, a ʻO ka ʻōnaehana hoʻomaʻemaʻe wai e pono e hoʻohana i ka valve butterfly i hoʻopaʻa paʻa ʻia a me ka valve butterfly.