Ngaphansi kwezinga le-SANS 1123, kunezinhlobo ezimbalwa zokushelela kuma-flange, ama-welding neck flange,i-lap joint flanges,izimpumputhe flangefuthiama-flanges anemicu.
Ngokwamazinga osayizi, i-SANS 1123 ihlukile kumazinga ajwayelekile aseMelika, amaJapan kanye naseYurophu. Esikhundleni se-Class, PN kanye ne-K, i-SANS 1123 yamukela ukumelwa okukhethekile: Isibonelo, ene-flange ye-flange ye-welding ye-neck 600/3, 1000/3, 1600/3, 250/3, 4000/3, ene-neck butt welding flange ezahlukene, 600/2, 1000/2, 1600/2, 250/2, 4000/2, Blind flange yi-600/8, 1000/8, 1600/8, 2500/8, 4000/8, iflange ecushiwe yi-600/ 4, 1000/4, 1600/4, 2500/4, 4000/4, flange okuxekethile kungenziwa ngezifiso usayizi.
I-SANS 1123 flange iseduze ne-European flange ephawulwe nge-PN, futhi isilinganiso sayo sokucindezela sisuka ku-250 kPa siye ku-4000 kPa, esiguqulelwa esilinganisweni sokucindezela esimakwe nge-PN, okungukuthi i-PN 2.5 kuya ku-PN 40, kodwa izinga lokushisa layo elisebenzayo lithi - 10 ℃ kuya ku-200 ℃, futhi izinga lokushisa elisebenzayo lincane. Ngemva kokuqinisekisa, kwatholakala ukuthi, uma kuqhathaniswa ne-BS EN 1092-1 flange, ngaphansi kosayizi ofanayo kanye nesigaba sokucindezela esihambisanayo, nakuba amanye ama-flange amakhudlwana we-SANS 1123 flange mancane, ububanzi obungaphandle be-flange, isikhungo sembobo yebhawudi. ububanzi besiyingi, amasethi okubopha kanye nokucaciswa kwentambo, okunquma ukuthi ama-flange amabili angalungiswa yini izixhumi, ngokuyisisekelo alingana nosayizi wokuxhuma we-flange, Ngakho-ke, i-SANS 1123 flange ihlangabezana ngokuyisisekelo nezidingo zamamaki ezinto zamapayipi ahlukahlukene kule phrojekthi.
Ngenxa yokuthi izinga lobuchwepheshe bokukhiqiza lamapayipi ensimbi aseNingizimu Afrika ngokuvamile lisemva kwamazwe athuthukile e-Europe nase-United States, izinkomba zobuchwepheshe zamapayipi ensimbi akhiqizwa ngokwezindinganiso zaseNingizimu Afrika ziphansi futhi amandla okuthwala ingcindezi alinganiselwe, insimbi yaseNingizimu Afrika. izinga lepayipi lale phrojekthi lisetshenziselwa kuphela amapayipi ensimbi yensimbi anezinga lokushisa eliphansi kanye nengcindezi ephansi, futhi amapayipi ensimbi ye-carbon anengcindezi yokuklama engu-＞ 2.5 MPa noma izinga lokushisa lokuklama ＞ 100 ℃ nawo wonke amapayipi ensimbi engagqwali asebenzisa izindinganiso zaseMelika. Ukwakheka kwamakhemikhali kanye nenkomba yamandla yezinto zamapayipi ensimbi ezilinganisweni zamapayipi ensimbi aseNingizimu Afrika kanye nezindinganiso zamapayipi ensimbi aseMelika anomehluko othile, futhi amanye amapayipi ensimbi anobubanzi obuhlukene bangaphandle (bheka Ithebula 1, njenge-DN65). Nakuba inkinga yomehluko ekubunjweni kwezinto ezibonakalayo zensimbi yepayipi yensimbi emikhawulweni yomibili ye-weld ingaxazululwa ngokukhethwa kwezinduku zokushisela kanye nokuthuthukiswa kwenqubo yokushisela, kanye nenkinga yomehluko kububanzi obungaphandle be-welding. ipayipi lensimbi emaphethelweni womabili we-butt weld lingaxazululwa ngokusikwa okunyakazayo, ngokungangabazeki lokhu kuletha ubunzima obukhulu ekwakhiweni kwepayipi futhi akuhambisani nesiqinisekiso sekhwalithi yokwakha. Ukuxhumana kokubeka uphawu kungenziwa ngokusebenzisana kwe-flange, i-gasket kanye ne-fastener. I-gasket ihlukanisa ama-flanges emikhawulweni yomibili, futhi i-fastener ayidingi izinto ezifanayo zama-flange kuzo zombili iziphetho. Ngakho-ke, umehluko phakathi kokubunjwa kwezinto ezibonakalayo kanye nobubanzi bangaphandle bamapayipi ensimbi emikhawulweni yomibili ungaxazululwa. Phela, ukuxhunywa kwamapayipi ensimbi ngezindinganiso ezihlukene ngokuvamile kwenzeka endaweni lapho izinga lempahla yepayipi lishintsha. Amalungu anjalo awabaningi, futhi ukusetshenziswa kwama-flanges ngeke kwengeze izindleko eziningi kuphrojekthi.
Isikhathi sokuthumela: Mar-02-2023
