“Inchi” ke eng: Inch (“) ke yuniti e tloaelehileng ea litlhaloso bakeng sa sistimi ea Amerika, joalo ka liphaephe tsa tšepe, li-valve, li-flange, li-elbow, lipompo, li-tee, jj., joalo ka ha tlhaloso e le 10″.
Senthimitharaes (intshi, e kgutsufaditsweng jwalo ka in.) e bolela monwana o motona ka Sedache, mme intjhi e le nngwe ke bolelele ba monwana o motona. Ehlile, bolelele ba monwana o motona wa motho le bona bo fapane. Lekholong la bo14 la dilemo, Morena Edward II o ile a ntsha "monwana o tloaelehileng wa molao".
Ho totobatsoa hore bolelele ba lithollo tse tharo tse kholo ka ho fetisisa tse khethiloeng bohareng ba hloho ea harese le tse hlophisitsoeng ka tatellano ke lisenthimithara tse le 'ngoe.
Ka kakaretso 1″=2.54cm=25.4mm
DN ke eng: DN ke yuniti ya ditlhaloso e sebediswang haholo ditsamaisong tsa China le Europe. Hape ke tlhaloso ya ho hlwaya diphaephe, di-valve, di-flange, di-fitting tsa diphaephe le dipompo, tse kang DN250.
DN e bua ka bophara bo tloaelehileng ba phaephe (bo tsejoang hape e le bophara bo tloaelehileng), hlokomela: ena ha se bophara bo ka ntle kapa bophara bo ka hare, ke karolelano ea bophara bo ka ntle le bophara bo ka hare, bo bitsoang bophara bo tloaelehileng ba ka hare.
Φ ke eng: Φ ke yuniti e akaretsang, e bolelang bophara ba kantle ba liphaephe, litsoe, tšepe e chitja le thepa e 'ngoe. E ka boela ea boleloa e le bophara. Mohlala, Φ609.6mm e bolela bophara ba kantle ba 609.6mm.
Jwale kaha re se re fumane hore na diyuniti tsena tse tharo di emela eng, kamano ya tsona ke efe?
Sa pele, “Moelelo wa “DN” o batla o tshwana le wa DN, ha e le hantle o bolela bophara bo boletsweng, bo bontshang boholo ba tlhaloso ena, mme Φ ke ho kopanya tse pedi.
Mohlala: haeba phaephe ea tšepe e le DN600, 'me phaephe e tšoanang ea tšepe e tšoailoe ka lisenthimithara, e ba 24″. Na ho na le kamano pakeng tsa tse peli?
Karabo ke e! Inchi e akaretsang ke katiso e tobileng ea kakaretso ka 25, e leng e lekanang le DN, joalo ka 1″*25=DN25 2″*25=50 4″*25=DN100 jj.
Ehlile, ho boetse ho na le tse fapaneng, tse kang 3″*25=75, tse chitja ho DN80 e haufi, le di-inchi tse ding tse nang le di-semicolon kapa dintlha tsa decimal, tse kang 1/2″ 3/4″ 1-1/4″ 1-1/2″ 2-1 /2″ 3-1/2″, jj., tsena di ke ke tsa balwa jwalo, empa palo e batla e tshwana, ha e le hantle boleng bo boletsweng:
1/2″=DN15 3/4″=DN20 1-1/4″=DN32 1-1/2″=DN40 2-1/2″=DN65 3-1/2″=DN90
Nako ea poso: Hlakubele-10-2022
