Flanges ndi gawo lofunikira pamakina opangira mapaipi, amagwiritsidwa ntchito kulumikiza mapaipi, mavavu, mapampu, ndi zida zina. Posankha flanges, mfundo zazikulu ziwiri ziyenera kuganiziridwa – DN (Dimension Nominal) ndi ANSI (American National Standards Institute). Ngakhale kuti zonsezi ndizofala, pali kusiyana kofunikira kuti mumvetsetse posankha pakati pa DN vs ANSI flanges. Nkhaniyi ifananiza dn vs ansi flanges mwatsatanetsatane kuti ikuthandizeni kusankha bwino.
Mawu Oyamba
Flanges imapereka njira yolumikizira mapaipi ndi kusamutsa madzi kapena mpweya pomangirira pamodzi ndi ma gaskets pakati pawo kuti asindikize kulumikizana.. Amagwiritsidwa ntchito pazinthu zambiri kuchokera kumakampani amafuta ndi gasi kupita ku chakudya ndi zakumwa, magetsi, ndi zina.
Pali miyeso iwiri yayikulu yapadziko lonse lapansi pamiyeso ya flange ndi mavoti:
- DN – Dimensional Dzina (European / ISO muyezo)
- ANSI – American National Standards Institute (American muyezo)
Ngakhale onse amatsatira mfundo yofanana yopangira, pali kusiyana mu miyeso, kupanikizika maganizo, faces, ndi mapangidwe a bolt omwe amawapangitsa kukhala osasinthika. Kumvetsetsa dn vs ansi flanges kudzatsimikizira kuti mumasankha ma flange oyenera pamapaipi anu.
Kusiyana Kwakukulu Pakati pa DN ndi ANSI Flanges
Poyesa dn vs ansi flanges, zotsatirazi ndi zinthu zazikulu kuyerekeza:
Makulidwe
- Ma flange a DN amatengera kukula kwa chitoliro chomwe chili ndi ma increments wamba.
- Ma flange a ANSI ali ndi miyeso yokhazikika yosagwirizana ndi kukula kwa chitoliro.
Izi zikutanthauza DN 100 flange imagwirizana ndi chitoliro cha 100mm, pomwe ANSI 4 ”flange ili ndi vuto la pafupifupi. 4.5”. DN flanges amagwiritsa ntchito ma metrics pomwe ANSI imagwiritsa ntchito mayunitsi achifumu.
Pressure Ratings
- DN flanges amagwiritsa ntchito PN rating – kuthamanga kwakukulu mu BAR pa kutentha komwe kumaperekedwa.
- ANSI flanges amagwiritsa ntchito Class rating – kupanikizika kwakukulu kwa psi kutengera mphamvu zakuthupi.
Mwachitsanzo, ndi DN150 PN16 flange = ANSI 6” 150# flange mu mphamvu yogwira ntchito.
Kuyang'ana Masitayilo
- DN flanges amagwiritsa ntchito mawonekedwe a Fomu B1 kapena B2.
- Ma flange a ANSI amagwiritsa ntchito nkhope yokweza (RF) kapena Flat Face (FF) faces.
B1 ikufanana ndi RF, pamene B2 ikufanana ndi FF. Kuyang'ana kuyenera kufanana ndi kusindikiza koyenera.
Zozungulira za Bolt
- DN bolt mabowo amakhala kutengera awiri mwadzina.
- Mabwalo a bawuti a ANSI amatengera mtundu wa flange.
Mabowo a bolt sangagwirizane pakati pa masitaelo awiri.
Zipangizo
- DN flanges amagwiritsa ntchito zida zopangira metric – P250GH, 1.4408, ndi zina.
- ANSI imagwiritsa ntchito magiredi achifumu/US – A105, A182 F316L, ndi zina.
Zinthuzo ziyenera kukhala zofanana ndi kutentha ndi kupanikizika kofunikira.
Monga mukuwonera, dn vs ansi flanges ali ndi zosiyana zochepa zomwe zimapangitsa kuti asasinthe. Kusakaniza ziwirizo nthawi zambiri kumabweretsa kutayikira, kuwonongeka, ndi nkhani zina.
Tchati cha Kukula kwa DN vs ANSI Flanges
Kuyerekeza makulidwe a common dn vs ansi flanges, onani tchati chothandizira ichi:
| DN Flange | Kukula Kwapaipi Kwadzina | ANSI Flange |
|---|---|---|
| DN15 | 15mm | 1⁄2” |
| DN20 | 20mm | 3⁄4” |
| DN25 | 25mm | 1” |
| DN32 | 32mm | 11⁄4” |
| Chithunzi cha DN40 | 40mm | 11⁄2” |
| Chithunzi cha DN50 | 50mm | 2” |
| DN65 | 65mm | 21⁄2” |
| Mtengo wa DN80 | 80mm | 3” |
| Chithunzi cha DN100 | 100mm | 4” |
| Chithunzi cha DN125 | 125mm | 5” |
| Chithunzi cha DN150 | 150mm | 6” |
| Chithunzi cha DN200 | 200mm | 8” |
| Chithunzi cha DN250 | 250mm | 10” |
| DN300 | 300mm | 12” |
| Chithunzi cha DN350 | 350mm | 14” |
| DN400 | 400mm | 16” |
Izi zikuphatikiza kukula kwa dn vs ansi flanges mpaka 16". Zimapereka kuyerekezera koyerekeza kokha – miyeso yeniyeni ikhoza kusiyana. Tsimikizirani zofunikira musanasinthire ANSI ndi DN flanges.
DN vs ANSI Flange FAQ
Mafunso ena pafupipafupi okhudza dn vs ansi flanges akuphatikizapo:
Ndi DN ndi Zithunzi za ANSI zosinthika?
Ayi, DN ndi ANSI flanges sangathe kusinthidwa mwachindunji chifukwa cha kusiyana kwa miyeso, mavoti, faces, ndi zipangizo. Kuyesa kukwatirana ndi DN flange ku ANSI flange kumabweretsa kusalinganika bwino.
Kodi mungagwiritse ntchito DN flange pa ANSI chitoliro?
Ayi, miyeso yosiyana imatanthauza kuti DN flange sichidzayenderana bwino ndi kukula kwa chitoliro cha ANSI. Amapangidwa ngati machitidwe kuti agwirizane ndi ma DN flanges ndi mapaipi a DN, ndi ANSI ndi ANSI.
Momwe mungasinthire DN kukhala ANSI flange size?
Palibe kutembenuka kwachindunji pakati pa kukula kwa mapaipi a DN vs ANSI. Tchati chomwe chili pamwambachi chimapereka chifananizo chofanana ndi kukula kwa flange wamba wa DN ndi ANSI. Nthawi zonse fufuzani miyeso yeniyeni – miyeso imatha kusiyanasiyana malinga ndi miyezo.
Ndiyenera kugwiritsa ntchito DN kapena ANSI flanges?
Ngati mapaipi anu ali m'malo ogwiritsira ntchito miyezo ya ISO (Europe, Kuulaya, Asia), Ma DN flanges amafunikira. Kwa North America pogwiritsa ntchito miyezo ya ANSI, Ma flange a ANSI adzakhala chisankho chabwinobwino. Gwiritsani ntchito muyezo wofanana ndi mapaipi anu onse kuti mugwire bwino ntchito.
Kodi mutha kulumikiza ma flange a DN ndi ANSI palimodzi?
Simuyenera kumangirira limodzi ma flange a DN motsutsana ndi ANSI. Zozungulira zosiyanasiyana za bawuti sizingagwirizane, zomwe zimapangitsa kuti pakhale ma gaskets okhala mosayenera, kuchucha, ndi kuwonongeka komwe kungachitike popanikizika.
Mapeto
Pankhani kusankha flanges, kumvetsetsa kusiyana kwakukulu pakati pa DN vs ANSI miyezo ndikofunikira. Ma flanges osagwirizana angayambitse kutayikira, kuwonongeka kwa zida, ndi kukonza zodula. Poyerekeza miyeso, kupanikizika maganizo, faces, ndi zipangizo, mutha kuwonetsetsa kuti mumasankha ma flange a DN kapena ANSI nthawi iliyonse.
Ndi zothandizira padziko lonse lapansi, Jmet Corp imapereka ma flange a DN ndi ANSI kuti akwaniritse zofunikira zakomweko. Lumikizanani nafe lero kuti tikambirane za pulogalamu yanu ndikupeza thandizo posankha ma flange oyenera. Akatswiri athu atha kukuyendetsani pamiyezo ya dn vs ansi flanges ndikupereka zoperekera zodalirika pazomwe mukufuna. Pezani ma flange oyenera kuti ntchito zanu ziziyenda bwino.