ʻO ka laʻana mua loa e like me kakiwi pōkāʻO ia ka valve i hoʻopaʻa ʻia e John Warren i ka makahiki 1871. He kiwipa noho metala me ka pōlele keleawe a me ka noho keleawe. Ua hāʻawi hope ʻo Warren i kāna patent hoʻolālā ʻana o ka pahu kinipōpō keleawe iā John Chapman, ke poʻo o Chapman Valve Company. ʻO kēlā me kēia kumu, ʻaʻole i hoʻokomo ʻo Chapman i ka hoʻolālā a Warren i ka hana. Akā, ua hoʻohana ʻo ia a me nā mea hana valve ʻē aʻe i nā hoʻolālā kahiko no nā makahiki he nui.

ʻO nā kiwi pōleʻa, ʻike ʻia hoʻi ʻo ka pōlele pōpō, i hoʻokani hope ʻia i ka wā o ke Kaua Honua II. I loko o kēia wā, hoʻomohala nā mea ʻenekinia no ka hoʻohana ʻana i nā ʻōnaehana wahie mokulele. Ma hope o ka holomua okiwi poepoei ke Kaua Honua II, ua hoʻohana ka poʻe ʻenekinia i nā kiwi pōpō i nā noi ʻoihana.

ʻO kekahi o nā mea koʻikoʻi nui e pili ana i nā kiwi pōpō i ka makahiki 1950, ʻo ia ka hoʻomohala ʻana o Teflon a me kāna hoʻohana ʻana ma ke ʻano he mea pōlele pōlele. Ma hope o ka holomua ʻana o Teflon, nui nā ʻoihana e like me DuPont i hakakā no ka pono e hoʻohana iā ia, no ka mea ua ʻike lākou hiki iā Teflon ke lawe mai i nā pōmaikaʻi mākeke nui. ʻO ka hopena, ʻoi aku ma mua o hoʻokahi ʻoihana i hiki ke hana i nā valve Teflon. Hiki ke hoʻopaʻa ʻia nā kiwi pōpō Teflon a hiki ke hana i nā sila maikaʻi ma nā ʻaoʻao ʻelua. I nā huaʻōlelo ʻē aʻe, he mau kuhikuhi ʻelua. He leak proof nō hoʻi lākou. I ka makahiki 1958, ʻo Howard Freeman ka mea hana mua i hoʻolālā i ka pahu pōpō me kahi noho Teflon maʻalahi, a ua patent ʻia kāna hoʻolālā.

I kēia mau lā, ua hoʻomohala ʻia nā ʻāpana pōleʻa ma nā ʻano he nui, e komo pū ana me kā lākou mea kūpono a me nā noi hiki. Eia hou, hiki iā lākou ke hoʻohana i ka CNC machining a me ka polokalamu kamepiula (e like me ke ʻano Button) e hana i nā valve maikaʻi loa. ʻAʻole koke, hiki i nā mea hana kīpē pōleʻa ke hāʻawi i nā koho hou aʻe no kā lākou huahana, me ke kūkulu ʻana i ka aluminika, ka liʻiliʻi o ka lole a me nā mana throttling nui, e hiki ai i nā mea hoʻohana ke hoʻohele i ka nui o ka wai ma o ka valve i kahi kahe kahe palena.

palapala noi

ʻO ka pahuhopu o ka pahu pōleʻa e hoʻoponopono i ke kahe o ka wai. Hiki iā lākou ke hana i kēia ma nā ʻano he nui. Hiki iā lākou ke hoʻololi i kekahi mau ʻano o nā kīwaha kahe haʻahaʻa, hāʻawi i ka pale ʻana i ka backflow no nā kiwi me nā hui nānā swing check, hoʻokaʻawale i ka ʻōnaehana, a hāʻawi i ka pani piha no nā mea hana.

No ka mea hiki ke hoʻomalu ʻia me ka lima a i ʻole ka uila, hiki i nā kiwi pōlele ke lawelawe i nā noi me nā ʻano hoʻonohonoho like ʻole.

I ka hapanui o nā hihia, hoʻohana ʻia nā kiwi pōpō e wehe a pani i nā paipu i loaʻa nā paʻa paʻa, slurries, wai a me nā kinoea. ʻO nā noi ʻē aʻe kahi e hoʻohana mau ʻia ai nā kiwi pōpō me nā ʻōnaehana paipu, nā mea hana, a me nā mea hana ma kahi kokoke i nā ʻoihana āpau e lawe i ka wai. Hiki iā ʻoe ke loaʻa iā lākou ma nā wahi a pau mai ka papahele hale hana a hiki i ka faucet i kou home. ʻOihana e hoʻohana anakiwi poepoee komo pū me ka hana ʻana, ka mining, ka aila a me ke kinoea, ka mahiʻai, ka hoʻomehana a me ka hoʻoluʻu, nā pipeline ʻoihana a me ka hale, ka wai, nā mea kūʻai aku, kūkulu, etc.