Ino "inchi" ninzi: Inchi (") nchintu chidumide loko mubweendelezi bwaku Amelika, mbuli mapaipi aabutale, mavwili, mafulenji, zikobela, mapompi, tii, azimwi, mbuli kuti 10′′.
Inches (inch, yakafwiinsigwa mbuli in.) chaamba chaala muchiDutch, mpawo inch yomwe bulamfu bwa chaala. Masimpe, bulamfwu bwachaala chamuntu abwalo buliindene. Mumwaanda wamyaka wakkumi aane, Mwami Edward wabili wakapa "mulawu uuzumizyidwe".
Kwakaambwa kuti bulamfu bwamaila otatwe mapati aasalwa kuzwa akati kamutwe wabbaale mpawo abikkwa mumulongo mbu inchi yomwe.
Kanjikanji 1′′=2.54cm=25.4mm
Ino DN ninzi: DN nchintu chibelesyegwa kapati muma Chinese amu European systems. Alimwi ninzila yakuziba mapaipi, mavalvu, maflange, zibelesyo zyamapayipi amapompi, zilimbuli DN250.
DN chaamba bupati bwamupayipi (alimwi buzyibidwe kuti bupati bwamupayipi), amubone: oobu tabuli bupati bwaanze naa bupati bwamukati, mweelwe waakati-kati wabwamba bwaanze abwaamba bwamukati, bwiitwa kuti mweelwe waakati-kati wabwamba bwamukati.
Ino Φ ninzi: Φ nchintu chidumide, chaamba bupati bwaanze bwamapaipi, zikobela, nsimbi zizungulukide azintu zimwi. alimwi chilakonzya kwaambwa kuti mbubwamba. Mbuli chitondeezyo, Φ609.6mm chaamba bupati bwaanze bwa 609.6mm.
Lino mbutwaziba kuti eezyi zibeela zyotatwe ziimininaanzi, ino nkuswaangana nzi aakati kazyo?
Chakusanguna, "Bupanduluzi bwa "DN" bulikozyenye abwa DN, mubwini bwaamba bupati bwazina, kutondezya bupati bwachintu eechi, mpawo Φ nkuswaanganya zyoonse zyobile.
Mbuli chitondeezyo: ikuti payipi yabutale kaili DN600, mpawo payipi njiyonya yabutale ilembedwe amainchi, ilaba 24′′. Mpu kuli kujatana aakati kazeezi zyobile?
Bwiinguzi mbwakuti inzya! Inchi yoonse nkuvwuzyanya kwanamba yoonse a 25, eeyo yeelene a DN, mbuli 1′′*25=DN25 2′′*25=50 4′′*25=DN100 azimwi.
Masimpe, kuli azimwi zisiyene, zilimbuli 3′′*25=75, zizingulukidwe kusika kuDN80 iili afwaafwi, alimwi amwi ma inches ajisi ma semicolon naa ma decimal points, mbuli 1/2′′ 3/4′′ 1-1/4′′ 1-1/2′′ 2-1/4′′ 1-1/2′′ 2-1 /2′′ 3-1/2′′ azimwi, tazikonzyi kubalwa mbuli boobo, azimwi, tazikonzyi kubalwa pe. pesi kubala kulikozyenye, mubwini mweelwe waambwa:
1/2′′=DN15 3/4′′=DN20 1-1/4′′=DN32 1-1/2′′=DN40 2-1/2′′=DN65 3-1/2′′=DN90
Chiindi chakutumizya: Mar-10-2022
