Nā Papa Paʻi o nā Flange

Hana ʻia nā flanges kila forged ASME B16.5 i ʻehiku mau papa kaomi mua:

ʻIke maopopo ka manaʻo o nā helu flange. Hiki i ka flange Papa 300 ke hoʻopaʻa i ke kaomi ʻoi aku ma mua o ka flange Papa 150, no ka mea, ua kūkulu ʻia ka flange Papa 300 me nā metala ʻoi aʻe a hiki ke pale aku i ke kaomi. Eia nō naʻe, aia kekahi mau kumu e hiki ke hoʻopili i ka hiki ke kaomi o kahi flange.

Hoʻokohu Paʻi Paʻi

E hāʻawi ʻia ka helu kaomi no nā flanges ma nā papa.

ʻO ka papa, i ukali ʻia me ka helu ʻole, ʻo ia ka hoʻonohonoho ʻana no ka helu ʻana i ka wela puʻe: Papa 150 300 400 600 900 1500 2500.

Hoʻohana ʻia nā inoa like ʻole e hōʻike i kahi Papa Paʻi. No ka laʻana: 150 Lb, 150 Lbs, 150# a i ʻole Papa 150, ua like nā mea a pau.

Akā hoʻokahi wale nō hōʻailona pololei, ʻo ia ka Pressure Class, e like me ka ASME B16.5 ʻo ka helu kaomi he helu dimensionless.

Ka Laʻana o ka Paʻi Paʻi

Hiki i nā flanges ke pale i nā kaomi like ʻole i nā mahana like ʻole. Ke piʻi aʻe ka mahana, e emi ana ka helu kaomi o ka flange. No ka laʻana, helu ʻia ka flange Papa 150 ma kahi o 270 PSIG ma nā kūlana ambient, 180 PSIG ma kahi o 400°F, 150 PSIG ma kahi o 600°F, a me 75 PSIG ma kahi o 800°F.
ʻO ia hoʻi, i ka wā e iho ai ke kaomi, piʻi ka mahana a me ka hope. ʻO nā kumu hou aʻe, hiki ke kūkulu ʻia nā flanges mai nā mea like ʻole, e like me ke kila kuhiliʻole, ka hao a me ka hao ductile, ke kila kalapona a me nā mea like ʻole.

Ma lalo o kahi laʻana o kahi flangeNPS 12me kekahi mau papa kaomi. E like me kāu e ʻike ai, ʻo ke anawaena o loko a me ke anawaena o ka helehelena i hoʻokiʻekiʻe ʻia i nā mea like; akā, ʻoi aku ka nui o ke anawaena o waho, ka pōʻai pōʻai a me ke anawaena o nā puka bolt i kēlā me kēia papa kaomi kiʻekiʻe.

ʻO ka helu a me nā anawaena (mm) o nā puka kī:

Nā Paʻi Paʻi-Panahana - Laʻana

ʻO ka helu ʻana i ke kaomi ʻana i ke ana wela ka palena kiʻekiʻe loa e ʻae ʻia i ka hana ʻana ma nā ʻāpana bar ma nā wela ma nā degere celsius. No nā mahana waena, ʻae ʻia ka laina laina. ʻAʻole ʻae ʻia ka hoʻopili ʻana ma waena o nā koho papa.

Hoʻopili ʻia ka helu ʻana o ka wela wela i nā hui flanged i kūlike i nā palena o ka bolting a me nā gaskets, i hana ʻia e like me ka hana maikaʻi no ka alignment a me ka hui ʻana. ʻO ka hoʻohana ʻana i kēia mau helu no nā hui flanged ʻaʻole i kūlike i kēia mau palena ke kuleana o ka mea hoʻohana.

ʻO ka mahana i hōʻike ʻia no ka helu kaomi e pili ana, ʻo ia ka mahana o ka pūpū paʻa o ka ʻāpana. Ma keʻano laulā, ua like kēia mahana me ka wai i loko. ʻO ka hoʻohana ʻana i ka helu kaomi e pili ana i kahi mahana ʻē aʻe ma mua o ka wai i loko o ke kuleana o ka mea hoʻohana, ma muli o nā koi o nā code a me nā lula pili. No kēlā me kēia mahana ma lalo o -29°C, ʻaʻole ʻoi aku ka nui o ka helu ma mua o ka helu i hōʻike ʻia no -29°C.

E like me ka laʻana, ma lalo ʻoe e ʻike ai i ʻelua mau papa me nā hui waiwai ASTM, a me ʻelua mau papa ʻē aʻe me nā pae hoʻopaʻa wela o ka flange no kēlā mau mea ASTM ASME B16.5.