Mu mapaipi chitoliro zovekera mavavu mapampu ndi mamangidwe ena kapena zogula ife zambiri kukumana DN, mainchesi ", Φ ndi mayunitsi ena, pali mabwenzi ambiri (makamaka ambiri atsopano kwa nsapato makampani) chifukwa chosokonezeka, sangathe kusiyanitsa chitsanzo, lero ife ifotokoza mwachidule chidule cha magawo atatu a kusanthula kwachindunji.
1.DN
"DN" abwenzi ambiri molakwika amaganiza kuti ndi m'mimba mwake wamkati, ndithudi DN ndi m'mimba mwake wamkati wapafupi, koma pafupi, tanthauzo lake lenileni ndi payipi, chitoliro, zoikamo m'mimba mwake mwadzina, m'mimba mwake mwadzina (Dzina ladzidzidzi), lomwe limadziwikanso kuti m'mimba mwake wapakati (Mean Outside Diameter), kwenikweni, ndi pafupifupi awiri akunja.
M'nyumba ya DN yamtengo wapatali imakhala yofala kwambiri, koma mu payipi, zopangira zitoliro ndi ma valve zimangoimira gawo, chifukwa chiyani ndi gawo lake?Chifukwa mu dongosolo zoweta mapaipi, pakhoza kukhala mitundu iwiri ya kunja awiri mu chitoliro chomwecho DN chizindikiro (Φ ndi m'mimba mwake kunja kwa chitoliro kapena payipi, tidzafotokoza kenako), monga DN100, pali mndandanda ndi II mndandanda (komanso zothandiza polemba mndandanda wa A ndi B), mndandanda wa I ndipo A mndandanda wa DN100 ndi Φ114.3, pomwe II mndandanda ndi B wa DN100 ndi Φ108.Ngati simunatchule kukula kwa chitoliro chakunja Φ pambuyo pa DN popereka dongosolo ndi tsatanetsatane, muyenera kufotokoza momveka bwino ngati ndi mndandanda wa I (A series) kapena II series (B series) polemba ndi DN, kuti zimamveka pogula ndikufunsa, ndipo mutha kudziwa mtundu wanji wa chitoliro kapena cholumikizira chakunja chomwe mukufuna popanda kulumikizana ndi kutsimikizira.
mainchesi 2
Inchi" ndi gawo lachifumu, lomwe limagwiritsidwa ntchito kwambiri ku America ndi ku Europe, lilinso gawo, inde, lili ndi chitoliro cha Chitoliro ndi Tube, lero tikuyenera kufotokozera kalasi ya chitoliro cha mapaipi ndi zokokera, kenako tidzayambitsa, chitoliro cha chitoliro ndi chubu. chitoliro chapadera.
Mu chitoliro chitoliro, inchi si ngati DN unit kusiyanitsa awiri akunja awiri a mipope mipope, ndi unit momveka, monga 4 ″ momveka ananena ndi m'mimba mwake akunja 114.3, ndi 10 ″ ndi Φ273, bola ngati chitoliro kapena zokometsera zomwe zafotokozedwa ndi inchi zimatha kudziwika bwino popanda kutsimikizira kukula kwa chitoliro chakunja kwa m'mimba mwake.
3. Diameter Φ
Chizindikiro cha m'mimba mwake ndi "Φ", chomwe ndi chilembo cha Chigriki, chotchedwa "fai", ndipo chimakhala ndi ubale wapamtima ndi ziwiri zam'mbuyomo, chifukwa chingathe kulowa m'malo mwa zizindikiritso ziwiri pamwambapa, ndi payipi kapena chitoliro chogwiritsa ntchito Φ ndiyomwe imamveka bwino kwambiri, ndipo ndiyolunjika kwambiri popanda kutembenuka, monga Φ219, Φ508, Φ1020, ndi zina zotero. Njira yozindikiritsa iyi ndi yowonjezereka kwambiri.
Nthawi yotumiza: Mar-24-2023
