I kēia lā, ʻo kanā kiwikā pepeke ʻano ʻēo kā mākou hale hana DN1000 a me DN1200 ua hoʻopili ʻia a ua mākaukau no ka lawe ʻana. E hoʻouna ʻia kēia pūʻulu o nā kiwikā pepeke i Rusia.

ʻO nā kiwikā pepeke eccentric pālua a me nā kiwikā pepeke maʻamau he mau ʻano kiwikā maʻamau, a ʻokoʻa lākou i ke ʻano a me ka hana. ʻO ka kiwikā pepeke eccentric pālua kahi ʻano hana kiʻekiʻekiwikā pulelehua flanged, ua hoʻomaikaʻi ʻia ma ke kumu o ka valve butterfly eccentric hoʻokahi, a ʻo ka valve butterfly maʻamau e pili pinepine ana i ka valve butterfly sila palupalu laina waena.

ʻO ke ʻano o ka eccentric pāluakiwikā pulelehua kumukūʻaiʻIke ʻia e kona axis kumu e haʻalele ana mai ke kikowaena o ka papa butterfly a mai ke kikowaena o ke kino. Hana kēia hoʻolālā i ka valve ma hope o ka wehe ʻana, hiki ke wehe koke ʻia ka disc mai ka noho, e hoʻopau nui ana i ka extrusion nui a me ke kahakaha ʻana ma waena o ka disc a me ka noho, a laila e hōʻemi ana i ka friction a me ke komo ʻana, a hoʻomaikaʻi i ka hana sila a me ke ola lawelawe o ka valve.

He maʻalahi ke ʻano o ka valve butterfly offset maʻamau, aia ke koʻokoʻo kumu, ka papa butterfly a me ke kino i ke kūlana like, a hoʻohana pinepine ʻia nā sila palupalu, e like me ka rubber a i ʻole polytetrafluoroethylene a me nā mea ʻē aʻe, kūpono no ka hoʻohana ʻana i ka mahana maʻamau a me ke kaiapuni haʻahaʻa haʻahaʻa a he hana sila maikaʻi.

Hana like ka valve pepeke eccentric pālua me ka valve pepeke eccentric hoʻokahi, akā ma muli o ka hoʻolālā eccentric pālua, ʻoi aku ka maikaʻi o ka hana sila a me ka haʻahaʻa o ka friction a me ka ʻaʻahu. ʻO ke kumu hana o ka valve pepeke i hoʻāla ʻia maʻamau, ʻo ia ke kāohi i ke kahe o ka wai ma ka hoʻohuli ʻana i ka papa valve, a ʻo ke kuhikuhi wili o ka papa valve e hoʻoholo i ke kuhikuhi kahe o ka wai. Ma muli o kona ʻano maʻalahi, i ka wā o ka wehe ʻana a me ke kaʻina hana pani o ka valve pepeke 6 ʻīniha maʻamau, aia mau ka papa pepeke a me ka noho i ke ʻano o ka ʻū ʻana a me ke kahakaha ʻana, kahi e alakaʻi ai i ka friction nui a me ka ʻaʻahu.

ʻO ka kiwikā pulelehua eccentric pālua he kūpono ia no nā mea kanu wai, nā mea kanu mana, ka hoʻoheheʻe kila, ka ʻoihana kemika, ka ʻenekinia kumu wai, ke kūkulu ʻana i nā pono hana kaiapuni a me nā ʻōnaehana hoʻokahe wai ʻē aʻe, kūpono loa no ka hoʻohana ʻana i ka pipeline wai ma ke ʻano he hoʻoponopono a me nā lako pani.