Kune kazhinji shamwari vasinganzwisise hukama pakati pezvinyorwa zve "Dn", "Φ"Uye" "". Nhasi, ndichapfupisa hukama pakati pevaya vatatu, ndichivimba kukubatsira iwe!
Chii chinonzi inch "
Inch (") chinhu chinowanzoshandiswa chinongedzo muAmerican system, senge pombi dzesimbi,mavharuvhu, maficha, elbows, pombi, tees, nezvimwe, sekuti soursiation ndeye 10 ".
Inch (inch, yakagurwa senge in.) Inoreva chigunwe muDutch, uye inch ihure kwechigunwe. Ehe, kureba kwegunwe zvakare kwakasiyana. Muzana ramakore rechi 14, King Edward II akasimudzira iyo "standard yemutemo inch". Ruzivo nderekuti kureba kweiyo matatu makuru ezviyo yakasarudzwa kubva pakati pehenzeve yebhari uye yakarongedzwa mumutsara ndeimwe inch.
Kazhinji 1 "= 2,54cm = 25.4mm
Chii chinonzi dn
DN chinhu chinowanzoshandiswa chisiri chechiyero cheChina uye European system, uye zvakare ndiyo yakatarwa yekugadzira mapipi,mavharuvhu, mafuro, akakodzera, uye mapombi, akadai seDN250.
DN inoreva zita rekuti pombi (zvakare inozivikanwa sezita rezita), ichi hachisi chinhu chokunze kana dhayamu yekunze, asi yomukati medhiya, inonzi avhareji yemukati dhayamu.
ChiiΦ
Φ inzvimbo yakajairika, iyo inoreva iyo yekunze dhiraivha yemapepa, kana elbows, kutenderera simbi uye zvimwe zvinhu.
Saka chii chinobatana pakati pavo?
Chekutanga pane zvese, zvinoreva zvinongedzo "" "" uye "Φ ndiko kusanganiswa kweaviri.
semuyenzaniso
Semuenzaniso, kana pombi yesimbi iri DN600, kana iyo imwechete yembwa yakanyorwa mumasendimita, inova 24 ". Pane here kubatana pakati pezviviri izvi?
Mhinduro ndeyekuti hongu! Iyo general inch ndeyekuverenga uye zvakavezwa ne25 yakaenzana ne25 yakaenzana ne1 "* 25 = makumi maviri neshanu, 3-16 3-1 / 2 "Uye zvichingodaro, izvi hazvigone kuwerengerwa saizvozvo, asi kuverenga kwakanangana neyakaenzana, kunyanya kukosha kwakataurwa:
1/2 "= DN15
3/4 "= DN20
1-1 / 4 "= DN32
1-1 / 2 "= DN40
2 "= DN50
2-1 / 2 "= DN65
3 "= DN80
Post Nguva: Kukadzi-03-2023
