Ma ka hale hana ʻo Jinbin, ua nānā ʻia ʻelima mau kiwikā pepeke eccentric pālua nui. ʻO ko lākou mau ana he DN2200, a ua hana ʻia nā kino kiwikā me ka hao ductile. Ua lako kēlā me kēia kiwikā pepeke me kahi mea hoʻoikaika uila. I kēia manawa, ʻo kēia mau mea he nuinā kiwikā pepekeua nānā ʻia a ua ʻae ʻia, a ke kali nei no ka hoʻopili ʻana a me ka hoʻouna ʻana.

ʻAʻole e like me nā kiwikā pepeke concentric kuʻuna (kahi e kūlike ai ke kumu kiwikā me ke kikowaena o ka papa pepeke a me ke kino kiwikā) a i ʻole ka kiwikā pepeke flanged eccentric hoʻokahi (kahi e ʻokoʻa wale ai ke kumu kiwikā mai ke kikowaena o ka papa pepeke), hoʻohana nā kiwikā pepeke eccentric pālua i kahi hoʻolālā eccentric pālua o "ke koʻi kumu kiwikā e ʻokoʻa ana mai ke kikowaena o ka papa pepeke + ke koʻi kumu kiwikā e ʻokoʻa ana mai ke kikowaena o ke kino kiwikā".

ʻO kēia ʻano hana e hiki ai i ka papa pepeke ke hoʻopili wale me ka noho kiwikā ke kokoke i ka pani ʻana i ka wā o ka wehe ʻana a me ke pani ʻana. I ke koena o ka hahau ʻana, ua hoʻokaʻawale loa ʻia ka papa pepeke mai ka noho kiwikā, e hōʻemi nui ana i ka friction a me ke komo ʻana o ka ʻili sila. ʻOi loa i nā hiʻohiʻona anawaena nui, hiki iā ia ke pale aku i ka "friction paʻakikī" ma ka ʻili sila i hoʻokumu ʻia e ke kaumaha ponoʻī o ka papa pepeke a i ʻole ke kaomi waena, e hoʻolōʻihi nui ana i ke ola lawelawe o ka hui sila, ʻoi aku ka lōʻihi ma mua o 30% ma mua o nā kiwikā pepeke hao ductile hoʻokahi.

Hoʻohana ka papa pepeke o ka valve pepeke uila nui-anawaena i kahi hoʻolālā maʻalahi. Ke wehe piha ʻia, loaʻa i ka papa pepeke kahi wahi pale liʻiliʻi no ka waena a me kahi coefficient pale kahe haʻahaʻa, hiki ke hōʻemi i ka nalowale ikehu o ka ʻōnaehana pipeline. No nā pipeline kahe nui me ke anawaena o DN1000 a ʻoi aku paha (e like me nā laina kumu wai kūlanakauhale a me nā ʻōnaehana wai e kaapuni ana i ka hale hana mana), ua mālama nui ʻia ka hoʻohana ʻana i ka ikehu o ka set pamu.

Hiki ke koho ʻia ke kino o ka valve mai ka hao ductile (no ka wai kūlanakauhale), ke kila kalapona (no ka ʻaila ʻoihana), a i ʻole ke kila kila (no nā mea ʻino) ma muli o nā ʻano o ka medium. Hiki ke pīpī ʻia ka ʻili o ka papa butterfly me kahi papa pale ʻaʻahu (e like me ka tungsten carbide), hiki ke kū i ka ʻino ʻana o nā media e loaʻa ana kahi liʻiliʻi o nā ʻāpana (e like me ke one a me ka slag). No ka lawe ʻana i nā wai e loaʻa ana nā haumia e like me ka wai ʻino a me ka slurry lehu, ʻo kona ola lawelawe he 2 a 3 mau manawa ma mua o nā valves butterfly maʻamau.

ʻO ke anawaena nuikiwikā pulelehua eccentric pālua, ma o ka hana hou ʻana o ke kūkulu ʻana, ua kaulike i ka kaohi kahe, ka hana sila a me ke ola hana o nā paipu anawaena nui. Ua lilo ia i hopena kūpono e pani i nā kiwikā puka kuʻuna a me nā kiwikā pōpō i nā ʻōnaehana waena kahe kiʻekiʻe a paʻakikī i ke kūlanakauhale, ka mana, ka mālama wai, nā ʻoihana a me nā ʻoihana ʻē aʻe. He kūpono loa ia no nā hiʻohiʻona hana lōʻihi e pili ana i ka hoʻohana ʻana i ka ikehu a me nā kumukūʻai mālama.