Ke hoʻohālikelike ʻia me ka paipu i hoʻopaʻa ʻia i ka ʻeha maʻamau, ʻoi aku ka maikaʻi o ka hoʻololi ʻana i ka wela, no laila ʻoi aku ka maikaʻi o ka hoʻololi ʻana i ka wela o ka bimetallic aluminum extruded finned tube ma mua o ka spiral fin tube i ka pae wela o ka pā.
Eia kekahi, ke hoʻohālikelike ʻia me ka paipu coiled, ʻo ka bimetallic alumini extruded fin tube he koʻikoʻi ke kūpaʻa corrosion a me ka ikaika kiʻekiʻe, hiki iā ia ke pale aku i ka hoʻomaʻemaʻe ʻana o ka wai 4.0MPa, ʻaʻole hāʻule nā fins i lalo, ke kumu o ka bimetallic alumini extruded tube.Hiki ke koho i ka paipu e like me ka corrosion o ka wai i loko o ka paipu a me ka ʻenehana hana.Hiki i ka paipu kumu ke kila kalapona, keleawe, stainless steel, etc.
