ʻO ka mīkini kahe wai wela he mika kahe i hoʻolālā ʻia ma muli o ke kumu o ka hoʻopuehu wela. Ana ia i ke kahe ma ka hoohana ana i ke ano i ka wa e kahe ai ka wai ma kekahi mea wela, ʻo ka lilo ʻana o ka wela o ka mea wela e like me ka holo o ka wai. Eia kekahi mau hiʻohiʻona o ka mīkini kahe wai wela.
Ana kiʻekiʻe-pololei: Thermal kinoea flowmeters hiki ke hāʻawi kiʻekiʻe-pololei nui kahe ana ana, maʻamau me ka pololei o ka emi o 1%. Lakiō laulā: Loaʻa i nā mika kahe wai wela ka lakene kiʻekiʻe a hiki i ka 100:1 a i ʻole ke kiʻekiʻe, a hiki ke ana i ke kahe kinoea mai haʻahaʻa a kiʻekiʻe. ʻAʻohe poho puʻe: Ma muli o kona hoʻolālā ʻana, ʻaneʻane ʻaʻohe poho kaomi ʻē aʻe i ke ana ʻana. ʻO ka wikiwiki pane wikiwiki: Hiki i nā mīkini kahe wai wela ke pane koke i nā loli kahe a kūpono no ke ana kahe wikiwiki. ʻO ka hilinaʻi kiʻekiʻe: ʻO ke ʻano maʻalahi, ʻaʻohe wahi neʻe, no laila haʻahaʻa ka mālama ʻana a me ka hilinaʻi kiʻekiʻe. Hiki ke hoʻololi ikaika: He kūpono no nā kinoea like ʻole, me nā kinoea corrosive a me ka wela wela, hiki ke ana i ke kahe nui o nā kinoea pulu. Hoʻokomo maʻalahi: He maʻalahi ka hoʻouka ʻana i nā kahe wai wela, hiki ke hoʻokomo a mālama ʻia ma ka pūnaewele, a kūpono i nā ʻano diameters paipu.
