Ke hoʻohana nei i ka maʻamau BS4504, aiapānā lehelehe, weld neck flanges, paheʻe ma nā lehelehe, hili ʻia aflange makapō, etc. E pili ana i kēia mau ʻano flanges, e hoʻolauna i kā lākou nui kikoʻī kikoʻī a me nā kikoʻī ʻē aʻe Nā Paʻa Paʻa (Code101)
ʻAno pāpaʻi pāpaʻi kuʻihao flange (kemika maʻamau HG20592, national standard GB/T9119, mechanical JB/T81): maʻalahi ka loaʻa ʻana o nā mea, maʻalahi e hana, haʻahaʻa kumu kūʻai a hoʻohana ākea. Eia nō naʻe, ʻilihune loa kona rigidity, no laila ʻaʻole hiki ke hoʻohana ʻia i ka hāʻawi ʻana a me ke koi ʻana, flammable a me ka pahū kaʻina hana paipu. Pono kēia mau ʻōnaehana i ka pahū a me ka ʻūhā kiʻekiʻe, a he mea weliweli loa. ʻO ke ʻano o ka ili hoʻopaʻa ʻana he palahalaha a convex.
ʻO ka flange threaded he flange non-welded, i hoʻopili ʻia i ka pipe threaded ma ka hana ʻana i ka lua o loko o ka flange i loko o ke kaula paipu. Hoʻohālikelike ʻia me ka flange welding flat a i ʻole butt welding flange, threaded flange loaʻa nā hiʻohiʻona o ka hoʻonohonoho pono ʻana a me ka mālama ʻana, a hiki ke hoʻohana ʻia no nā paipu i ʻae ʻole i ka hoʻoheheʻe ʻana i ke kahua. Ua lawa ka ikaika o ka flange kila, akā ʻaʻole maʻalahi ka weld, a ʻaʻole maikaʻi ka hana kuʻi ʻana, hiki ke koho ʻia ka flange threaded. Eia nō naʻe, ke loli koke ka mahana o ka paipu a i ʻole ke kiʻekiʻe o ka mahana ma mua o 260 ° C akā haʻahaʻa ma lalo o - 45 ° C, ʻōlelo ʻia ʻaʻole e hoʻohana i ka flange threaded e pale aku i ka leakage.
Kapa ʻia ka uhi flange ʻo flange makapō, pā makapō. He flange kēia me ka puka ʻole o ka waena, i hoʻohana ʻia e hoʻopaʻa i ka pahu paipu. Ua like kēia hana me ka hui welded a me ka pāpale paipu kaula. ʻO ka ʻokoʻa, hiki ke wehe ʻia ka flange makapō a me ka pāpale paipu kaula i kēlā me kēia manawa, akā ʻaʻole hiki ke wehe ʻia ke poʻo wili. Nui nā ʻano o nā ʻili hoʻopaʻa, e like me ka pālahalaha, convex, concave a me convex, tenon a me nā ʻili aʻe a me nā papa pili annular.
ʻO nā flanges maʻamau o ʻAmelika nā ʻāpana e hoʻopili ai i nā paipu i nā paipu a me nā hopena paipu. Hana ʻia a hoʻolei ʻia nā flanges maʻamau ʻAmelika ma nā ʻano ʻelua. Hiki ke hoʻokaʻawale ʻia ka flange kuʻekuʻe wāwae maʻamau o ʻAmelika i ka ʻāʻī ʻAmelika maʻamau a me ka ʻāʻī ʻole o ka ʻāʻī ʻAmelika e like me kona kūlana ʻāʻī. ʻO ka flange welding maʻamau maʻamau o ʻAmelika he ʻelua mau papa flange a me nā kīʻaha flange. Hoʻopili ʻia nā mea holoi flange e hoʻopau i ka pilina. He puka ko ka flange maʻamau o ʻAmelika, a ua hoʻopili paʻa nā kī i nā ʻaoʻao ʻelua. Hoʻopaʻa ʻia ka flange me ka gasket.
Weld Neck Flanges(Code 111) 
Hoʻopaneʻe ma luna o nā flanges(Code 112)
Nā Lele Uila (Code 113)
Nā Paʻa Paʻakahi (Kūnāwai 105)
Ka manawa hoʻouna: Feb-21-2023
