Wahi a ke ʻano o ka pilina flange, ʻo kakino kiwikā pepekeUa māhele nui ʻia i: ʻano wafer A, ʻano wafer LT, flange hoʻokahi, flange pālua, flange ʻano U.
ʻO ke ʻano Wafer A he pilina lua ʻole ia, ʻo ke ʻano LT 24" ma luna o nā kikoʻī nui e hoʻohana pinepine i ke kino valve ʻano U ikaika e hana i ka pilina wili, pono e hoʻohana i ka hopena o ka pipeline ʻano LT.
Wahi a ke ʻano sila, ʻo kakino kiwikā pepekehiki ke hoʻokaʻawale ʻia i ke kino vulcanized rapa (kino noho hiki ʻole ke hoʻololi ʻia), ke kino valve māhele (ma ke ʻano maʻamau me ka noho pale i ka corrosion), a me ke kino noho hiki ke hoʻololi ʻia (me ka noho hope paʻakikī a me ka noho palupalu).
ʻO nā mea kino o kā mākou hoʻohana pinepine ʻia i nā kiwikā pulelehua concentric: hao hoʻolei, hao ductile, kino kila hoʻolei, kino kila kila hoʻolei, kino keleawe hoʻolei, kino alumini hoʻolei a me ke kino kila duplex super hoʻolei.
ʻO ka hao hao: ʻO ka mea maʻamau i loko o ka valve butterfly, i hoʻohana nui ʻia i ka ʻōnaehana wai, maʻalahi e pala, ola lawelawe pōkole, makepono.
Hao hao: He kūpono ka hao hao no ke kaomi maʻamau PN ≤ 1.0MPa, a me ka mahana -10 ℃ ~ 200 ℃ o ka wai, ka mahu, ka ea, ke kinoea a me ka ʻaila a me nā mea ʻē aʻe. ʻO nā kūlana a me nā māka maʻamau o ka hao hao hina: GB/T 12226, HT200, HT250, HT300, HT350.
Hao Ductile: I loko o ka valve butterfly, ua like ka hana me ke kila kalapona, kahi mea i hoʻohana nui ʻia i ka pipeline ʻōnaehana wai, akā i kēia manawa hoʻi, ua hoʻohana ʻia kahi ākea o nā mea hana i ka ʻōnaehana wai.
Hao ductile: Kūpono no PN ≤ 2.5MPa, mahana -30 ~ 350 ℃ wai, mahu, ea a me ka ʻaila a me nā mea ʻē aʻe. ʻO nā kūlana a me nā māka i hoʻohana pinepine ʻia: GB/T12227:2005 QT400-15, QT450-10, QT500-7; EN1563 EN-GJS-400-15,ASTM A536,65 45-12,ASTM A395,65 45 12.
Ke kila kalapona: Hiki ke hoʻohana ʻia i loko o ka ʻōnaehana wai, ʻoi aku ka pale ʻana o ke kiwikā pepeke kila kalapona i ke kiʻekiʻe o ke ana wela a me ke kaomi, ʻoi aku ka nui o ke kiwikā pepeke sila paʻakikī me nā mea kila kalapona.
Ke kila kalapona: Kūpono no ke kaomi maʻamau PN ≤ 3.2MPa, ka mahana -30 ~ 425 ℃ wai, mahu, ea, hydrogen, ammonia, naikokene a me nā huahana petroleum a me nā mea ʻē aʻe. ʻO nā papa a me nā kūlana i hoʻohana pinepine ʻia ʻo ASTM A216/216M:2018WCA, WCB, ZG25 a me ke kila kiʻekiʻe 20, 25, 30 a me ke kila hoʻolālā haʻahaʻa 16MN.
Kila kila: Loaʻa i nā kiwikā pepeke kila kila maikaʻi loa ke kūpaʻa i ka popo a me ka pala, a hoʻohana nui ʻia hoʻi i nā paipu e pono ai ke kūpaʻa i ka popo a me ka pala, a he kiʻekiʻe ke kumukūʻai. Pili i ke kaomi inoa PN ≤ 6.4.0MPa, pae mahana: -268 ° C a i +425 ° C, hoʻohana pinepine ʻia i ka wai, ka wai kai, ka ʻoihana kemika, ka ʻaila a me ke kinoea, nā lāʻau lapaʻau, ka meaʻai. Nā kūlana maʻamau a me nā māka: ASTM A351 / 351M: 2018, SUS304,304, SUS316, 316
ʻO ke kinikini keleawe: He kūpono ka valve pepeke keleawe no ka wai PN ≤ 2.5MPa, ka wai kai, ka oxygen, ka ea, ka ʻaila a me nā mea ʻē aʻe, a me nā mea mahu ma ka mahana o -40 ~ 250 ℃, nā māka i hoʻohana pinepine ʻia no ZGnSn10Zn2 (keleawe tin), H62, Hpb59-1 (keleawe), QAZ19-2, QA19-4 (keleawe alumini). Nā kūlana maʻamau a me nā māka: ASTM B148:2014, UNS C95400, UNS C95500, UNS C95800; ASTM B150 C6300.