ʻO ka hoʻohana nui ʻana o nā paipu kila humuhumu ʻole ma nā ʻoihana ʻoihana a me ke kūkulu ʻana e hoʻolilo i kāna mau kūlana a me nā koi maikaʻi i mea nui loa. ʻO ka mea i kapa ʻia ʻo "paipu ʻekolu-maʻamau" e pili ana i nā paipu kila humuhumu ʻole e hoʻokō ana i ʻekolu mau kūlana honua, ʻo ia hoʻiAPI(ʻAhahui ʻAila ʻAmelika),ASTM(ʻAhahui ʻAmelika no ka Hoʻāʻo ʻana a me nā Mea Hana) a meASME(ʻAhahui ʻAmelika o nā ʻenekinia mīkini). He kiʻekiʻe loa ka hilinaʻi a me ka hiki ke hoʻololi i kēia ʻano paipu kila ma muli o kona mau kūlana kiʻekiʻe a me nā palapala hōʻoia he nui, a hoʻohana nui ʻia i nā ʻoihana e like me ka ʻaila, ke kinoea kūlohelohe, nā kemika, a me ka uila.

ʻO ka mea mua, hoʻohana nui ʻia nā paipu kila seamless maʻamau API i ka ʻoihana aila a me ke kinoea, a ʻo kāna mau kūlana nuiAPI 5La meAPI 5CTUhi ke kūlana API 5L i nā koi hana ʻana o nā paipu hoʻoili e hōʻoia i ka hana o nā paipu ma ke kaomi kiʻekiʻe, ka mahana kiʻekiʻe a me nā wahi ʻino. Nānā ke kūlana API 5CT i ka uhi ʻaila a me nā paipu e hōʻoia i ka ikaika a me ke kūpaʻa o nā paipu i ka wā ʻeli a me ka hana ʻana. ʻO ka maʻamau, he ikaika kiʻekiʻe nā paipu kila humuhumu maʻamau API, paʻakikī kiʻekiʻe a me ke kūpaʻa maikaʻi i ka pala.

ʻO ka lua, ʻo nā paipu kila seamless maʻamau ASTM e uhi ana i nā ʻoihana ʻoihana he nui, me nā paila, nā mea hoʻololi wela, nā hale kūkulu, a pēlā aku.ASTM A106a meASTM A53 he mau kūlana hoʻohālike. He kūpono ka paipu kila humuhumu ASTM A106 no nā noi wela kiʻekiʻe a hoʻohana nui ʻia i nā ʻōnaehana paipu wela kiʻekiʻe i nā mea kanu mana, nā hale hoʻomaʻemaʻe a me nā mea kanu kemika. He kūpono ka paipu kila humuhumu ASTM A53 no ka halihali wai maʻamau, me ka wai, ka ea a me ka mahu. Hoʻākāka pono kēia mau kūlana i ka haku mele kemika, nā waiwai mechanical a me nā ʻae ʻana o nā dimensional o nā paipu kila e hōʻoia i ko lākou hilinaʻi i nā noi like ʻole.

ʻO ka mea hope loa, hoʻohana nui ʻia nā paipu kila seamless maʻamau ASME no nā paila a me nā ipu kaomi. ʻO ASME B31.3 a me ASME B31.1 ʻelua mau kūlana koʻikoʻi e wehewehe ana i nā koi hoʻolālā a me ka hana ʻana o nā ʻōnaehana paipu ma lalo o ke kaomi kiʻekiʻe a me nā wahi mahana kiʻekiʻe. Hoʻoikaika ke kūlana ASME i ka palekana a me ka hana lōʻihi o nā paipu kila a kūpono no nā hanana e pono ai ka hilinaʻi kiʻekiʻe a me ka palekana, e like me nā hale hana mana nukelea, nā hale hana kemika a me nā lako ʻoihana nui.

ʻO ka pōmaikaʻi o nā paipu ʻekolu-maʻamau e waiho ana i kā lākou mau palapala hōʻoia he nui a me ka hoʻohana ākea. No ka mea ua hoʻokō lākou i nā kūlana API, ASTM a me ASME i ka manawa like, hiki i kēia ʻano paipu kila humuhumu ke hoʻokō i nā koi koʻikoʻi o nā ʻāina a me nā ʻāpana like ʻole a kūpono hoʻi no nā ʻano hana paʻakikī like ʻole. Inā paha ma ke kaomi kiʻekiʻe, ka mahana kiʻekiʻe a i ʻole ke kaiapuni ʻino, hiki i nā paipu ʻekolu-maʻamau ke hōʻike i ka hana maikaʻi loa e hōʻoia i ka hana palekana a paʻa o ka ʻōnaehana.

I ka pōkole, ma ke ʻano he huahana kiʻekiʻe ma waena o nā paipu kila humuhumu ʻole, ua lilo nā paipu ʻekolu-maʻamau i mea pono a koʻikoʻi hoʻi i nā ʻoihana ʻoihana a me ke kūkulu ʻana me kā lākou mau palapala hōʻoia maʻamau he nui a me ka hana maikaʻi loa. ʻAʻole wale kāna hoʻohana ākea e hoʻomaikaʻi i ka maikaʻi a me ka palekana o nā papahana, akā e paipai pū ana hoʻi i ka hoʻomohala ʻana a me ka hana hou ʻana o ka ʻenehana mea kila. ʻO ke koho ʻana i nā paipu ʻekolu-maʻamau ʻaʻole wale ia he hōʻoia o ka maikaʻi, akā he kūpaʻa hoʻi i ka paʻa a me ka palekana o ka papahana i ka wā lōʻihi.