ʻO ka nui o ka paipu kila 3 mau mea:
ʻO ka wehewehe piha ʻana no ka nui o ka paipu kila e pili ana i ke anawaena o waho (OD), ka mānoanoa o ka pā (WT), ka lōʻihi o ka paipu (Maʻamau 20 ft 6 mika, a i ʻole 40 ft 12 mika).

Ma o kēia mau huaʻōlelo hiki iā mākou ke helu i ke kaumaha o ka paipu, ka nui o ke kaomi paipu e hiki ke amo, a me ke kumukūʻai no ka wāwae a i ʻole ka mika.
No laila, no laila pono mākou e ʻike i ka nui o ka paipu kūpono.

Palapala Ana Pipa kila

Pipe Schedule Chart unit in mm like below, view here for Pipe Schedule Chart in inch.

Nā kūlana ana no ka paipu kila
Aia nā kūlana like ʻole e wehewehe i ka nui o ka paipu kila, OD a me ka mānoanoa o ka paia. ʻO ka hapa nui he ASME B 36.10, ASME B 36.19.

Nā kikoʻī maʻamau pili ASME B 36.10M a me B 36.19M
ʻO ka ASME B36.10 a me B36.19 ka mea kikoʻī maʻamau no nā ana o ka paipu kila a me nā mea pono.

ASME B36.10M
Hoʻopili ka maʻamau i ka standardization o nā ana a me nā nui o ka paipu kila. Loaʻa kēia mau paipu i nā ʻano seamless a welded, a hoʻohana ʻia i ke kiʻekiʻe a i ʻole ka haʻahaʻa wela a me nā kaomi.
ʻO ka paipu i hoʻokaʻawale ʻia mai ka paipu (Pipe vs Tube), eia ka paipu no nā ʻōnaehana pipeline, nā wai (Aila a me ke kinoea, wai, slurry). E hoʻohana i ka maʻamau o ASME B 36.10M.
Ma kēia maʻamau, ʻoi aku ka liʻiliʻi o ka paipu Outer Diameter ma mua o 12.75 in (NPS 12, DN 300), ʻoi aku ka nui o nā anawaena maoli ma mua o NPS (Nominal Pipe Size) a i ʻole DN (Nominal Diameter).

Ma ka lima, no nā ana paipu kila, ʻo ke anawaena maoli o waho e like me ka helu paipu no nā nui āpau.

He aha ka Hōʻike ʻana o ka Pipe Steel?
ʻO ka papa kuhikuhi paipu kila he ala hōʻike i hōʻike ʻia e ASME B 36.10, a hoʻohana pū ʻia i nā kūlana ʻē aʻe he nui, i kaha ʻia me "Sch". ʻO Sch ka pōkole o ka papa kuhikuhi, ʻike pinepine ʻia i ka maʻamau o ka paipu kila ʻAmelika, kahi prefix o kahi helu moʻo. No ka laʻana, ʻo Sch 80, 80 kahi helu paipu mai ka pakuhi/papaʻaina ASME B 36.10.

"No ka mea, ʻo ka noi nui o ka paipu kila e lawe i nā wai ma lalo o ke kaomi, no laila ʻo ko lākou anawaena kūloko ko lākou nui koʻikoʻi. Lawe ʻia kēia nui koʻikoʻi ma ke ʻano he nominal bore (NB). No laila, inā lawe ka paipu kila i nā wai me ke kaomi, he mea nui e lawa ka ikaika a me ka mānoanoa o ka pā. No laila ua kuhikuhi ʻia ka mānoanoa o ka pā ma nā Hōʻike, ʻo ia hoʻi ka papa kuhikuhi paipu, i hoʻopau ʻia ʻo SCH. Eia ʻo ASME ka maʻamau a me ka wehewehe ʻana no ka hoʻonohonoho paipu.

ʻO ka papa hoʻonohonoho paipu:
Sch.=P/[ó]t×1000
ʻO P ke kaomi i hoʻolālā ʻia, nā ʻāpana i MPa;
[ó]t ʻae ʻia ke koʻikoʻi o nā mea ma lalo o ka mahana hoʻolālā, Units i MPa.

He aha ka manaʻo o SCH no nā ana paipu kila?
E like me ka wehewehe ʻana i ka ʻāpana paipu kila, hoʻohana maʻamau mākou i ka papa kuhikuhi paipu, He ala ia e hōʻike ana i ka mānoanoa o ka pā paipu me ka helu. ʻO ka papa kuhikuhi paipu ( sch. ) ʻaʻole ia he mānoanoa pā, akā he moʻo mānoanoa pā. ʻO ka papa kuhikuhi paipu ʻokoʻa ke ʻano o ka mānoanoa pā o ka paipu kila i ke anawaena like. ʻO nā hōʻailona pinepine o ka papa manawa ʻo SCH 5, 5S, 10, 10S, 20, 20S, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160. ʻO ka nui o ka helu papa, ʻoi aku ka mānoanoa o ka ʻili. paipu paia, oi ke kiekie o ke ku'i pu'e.

Hōʻike 40, 80 ka nui o ka paipu kila
Inā he mea hou ʻoe i ka ʻoihana paipu, no ke aha ʻoe e ʻike mau ai i kahi papa 40 a i ʻole 80 paipu kila ma nā wahi āpau? He aha ke ʻano o kēia mau paipu?
E like me kāu i heluhelu ai i nā ʻatikala ma luna, ʻike ʻoe ʻo ka Hōʻike 40 a i ʻole 80 e hōʻike ana i ka mānoanoa o ka pā paipu, akā no ke aha i ʻimi mau ʻia ai e nā mea kūʻai?

Eia ke kumu:
Hōʻike 40 a me 80 paipu kila e like me nā nui maʻamau i koi ʻia i nā ʻoihana like ʻole, no ka nui o ke kaomi ʻana o kēia mau paipu, ua noi mau ʻia lākou no ka nui nui.

ʻAʻohe palena o ka mea maʻamau no ia mau paipu mānoanoa, hiki iā ʻoe ke nīnau iā sch 40 stainless steel pipe, e like me ASTM A312 Grade 316L; A i ʻole sch 40 paipu kila kalapona, e like me API 5L, ASTM A53, ASTM A106B, A 179, A252, A333 etc.

He aha ka Nominal Pipe Size (NPS)?
ʻO ka Nominal Pipe Size (NPS) he pūʻulu maʻamau o ʻAmelika ʻĀkau no nā paipu i hoʻohana ʻia no nā kaomi kiʻekiʻe a haʻahaʻa paha a me nā mahana. Hōʻike ʻia ka nui o ka paipu me ʻelua mau helu ʻokoʻa: ka nui o ka paipu nominal (NPS) ma muli o nā iniha, a me ka papa kuhikuhi (Sched. a i ʻole Sch.).

He aha ka DN (Nominal Diameter)?

ʻO ke anawaena inoa ʻo ia hoʻi ke anawaena waho. No ka mea, he lahilahi loa ka paia o ka paipu, ua aneane like ke anawaena o waho a me loko o ka paipu kila, no laila ua hoʻohana ʻia ka waiwai awelika o nā ʻāpana ʻelua e like me ka inoa o ke anawaena paipu. ʻO DN (nominal diameter) ke anawaena maʻamau o nā paipu like ʻole a me nā mea paipu. Hiki ke hoʻopili ʻia ke anawaena nominal like o ka paipu a me ka paipu, hiki ke hoʻololi ʻia. ʻOiai ua kokoke a like paha ka waiwai me ke anawaena o loko o ka paipu, ʻaʻole ia ke ʻano maoli o ke anawaena paipu. Hōʻike ʻia ka nui nominal e kahi hōʻailona kikohoʻe i ukali ʻia e ka leka "DN", a e kaha i ka ʻāpana i millimeters ma hope o ka hōʻailona. No ka laʻana, DN50, he paipu me ke anawaena inoa o 50 mm.

Papa Kaumaha Paipu Papa
ʻO ka papa WGT (papa kaumaha) kahi hōʻailona o ka mānoanoa o ka pā paipu i ka wā mua, akā hoʻohana mau ʻia. ʻEkolu wale nō kāna mau māka, ʻo ia hoʻi ʻo STD ( maʻamau ), XS ( ikaika ʻoi aku ), a me XXS ( ikaika ʻoi pālua ).
No ka paipu hana mua, hoʻokahi wale nō kikoʻī o kēlā me kēia caliber, i kapa ʻia ʻo standard tube (STD). No ka hoʻoponopono ʻana i ka wai kaomi kiʻekiʻe, ua ʻike ʻia ka paipu mānoanoa (XS). Ua ʻike ʻia ka paipu XXS (pālua ʻoi aku ka ikaika) e mālama i ka wai kaomi kiʻekiʻe. Ua hoʻomaka ka poʻe e koi i ka hoʻohana ʻana i ka paipu lahilahi ʻoi aku ka maikaʻi a hiki i ka puka ʻana mai o nā ʻenehana hana hou, a laila ʻike ʻia ka helu paipu ma luna. ʻO ka pilina pili ma waena o ka papa kuhikuhi paipu a me ka papa kaumaha, e nānā i ka ASME B36.10 a me ASME B36.19 kikoʻī.

Pehea e wehewehe pono ai i ka nui a me ka nui o ka paipu kila?
Eia kekahi laʻana: a. Hōʻike ʻia ma ke ʻano he "paipu waho anawaena × pā mānoanoa", e like me Φ 88.9mm x 5.49mm (3 1/2" x 0.216" ). 114.3mm x 6.02mm (4 1/2” x 0.237”), lōʻihi 6m (20ft) a i ʻole 12m (40ft), Single Random Length (SRL 18-25ft), a i ʻole Double Random Length (DRL 38-40ft).

b. Hōʻike ʻia ma ke ʻano he "NPS x Hōʻike", NPS 3 iniha x Sch 40, NPS 4 ʻīniha x Sch 40. Ka nui like me nā kikoʻī ma luna.
c. Hōʻike ʻia ʻo "NPS x WGT Class", NPS 3 iniha x SCH STD, NPS 4 ʻīniha x SCH STD. Nui like ma luna.
d. Aia kekahi ala, ma ʻAmelika ʻĀkau a me ʻAmelika Hema, e hoʻohana maʻamau i ka "Pipe Outer Diameter x lb/ft" e wehewehe i ka nui o ka paipu. E like me OD 3 1/2”, 16.8 lb/ft. ʻO ka lb/ft ka paona i kēlā me kēia kapuaʻi.