"Inch" ke eng: Inch (") ke yuniti e tloaelehileng e hlalosang tsamaiso ea Amerika, joalo ka liphaephe tsa tšepe, li-valve, li-flanges, litsoele, lipompo, li-tee, joalo-joalo, joalo ka litlhaloso ke 10 ″.
Intshies (inch, e khutsufalitsoeng joalo ka in.) e bolela monoana o motona ka Sedutch, 'me inch e le 'ngoe ke bolelele ba monoana o motona.Ha e le hantle, bolelele ba monoana o motona oa motho le bona bo fapane.Lekholong la bo14 la lilemo, Morena Edward II o ile a fana ka "inch e tloaelehileng ea molao".
Ho boleloa hore bolelele ba lithollo tse tharo tse kholo ka ho fetisisa tse khethiloeng ho tloha bohareng ba tlhapi 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 e sebelisoang hangata lits'ebetsong tsa China le tsa Europe.Hape ke mokhoa oa ho khetholla liphaephe, li-valve, li-flanges, lisebelisoa tsa liphaephe le lipompo, joalo ka DN250.
DN e bua ka bophara ka lebitso la phaephe (eo hape e tsejoang e le bophara ba lebitso), hlokomela: sena ha se bophara bo ka ntle kapa bophara bo ka hare, ke karolelano ea bophara ba ka ntle le bophara bo ka hare, bo bitsoang bophara bo ka hare bo tloaelehileng.
Ke eng Φ: Φ ke yuniti e akaretsang, e bolelang bophara ba kantle ba liphaephe, litsoele, tšepe e chitja le lisebelisoa tse ling.Hape ho ka boleloa hore ke bophara.Mohlala, Φ609.6mm e bolela bophara ba kantle ba 609.6mm.
Kaha joale re se re fumane hore na lihlopha tsena tse tharo li emela eng, na li amana joang le tsona?
Pele ho tsohle, "Moelelo oa "DN" o batla o tšoana le oa DN, ha e le hantle e bolela bophara ba lebitso, e bontšang boholo ba tlhaloso ena, 'me Φ ke ho kopanya tse peli.
Mohlala: haeba phala ea tšepe e le DN600, 'me phala e tšoanang ea tšepe e tšoailoe ka lisenthimithara, e fetoha 24 ″.Na ho na le kamano pakeng tsa tse peli?
Karabo ke e!Inche e akaretsang ke katiso e tobileng ea palo e felletseng ka 25, e lekanang le DN, joalo ka 1″*25=DN25 2″*25=50 4″*25=DN100 joalo-joalo.
Ho joalo, ho boetse ho na le tse fapaneng, joalo ka 3 ″ * 25 = 75, e pota-potiloeng ho DN80 e haufi, le li-inch tse ling tse nang le li-semicolons kapa lintlha tsa decimal, joalo ka 1/2 ″ 3/4 ″ 1-1/4 ″ 1. -1/2″ 2-1 /2″ 3-1/2″, joalo-joalo, tsena li ke ke tsa baloa joalo, empa palo e batla e tšoana, ha e le hantle boleng bo boletsoeng:
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: Mar-10-2022