Ke eng “intshi”: Intshi (“) ke yuniti e tlwaelehileng ya tlhaloso bakeng sa tsamaiso ya Amerika, jwalo ka dipeipi tsa tshepe, dibelofo, di-flanges, dikgopo, dipompo, di-tee, jj., jwalo ka tlhaloso ke 10 ′′.
Intšhees (inch, e khutshwafaditswe jaaka in.) e kaya monwana wa kgonope ka Sedatšhe, mme intšhe e le nngwe ke boleele jwa monwana wa kgonope. Gone ke boammaaruri gore boleele jwa monwana wa kgonope wa motho le jone bo farologane. Mo lekgolong la bo14 la dingwaga, Kgosi Edward II o ne a ntsha “intšhe e e tlwaelegileng ya semolao”.
Go tlhomamisitswe gore boleele jwa dithoro tse tharo tse dikgolo tse di tlhophilweng go tswa mo bogareng jwa tsebe ya harese mme di rulagantswe ka mola ke intšhe e le nngwe.
Ka kakaretso 1′′=2.54cm=25.4mm
DN ke eng: DN ke yuniti ya tlhaloso e e dirisiwang thata mo dithulaganyong tsa China le tsa Yuropa. Gape ke tlhaloso ya go supa dipeipi, dibelofo, diflangese, ditlhomeso tsa dipeipi le dipompo, jaaka DN250.
DN e bua ka molagare wa lebitso la peipi (o tsejwang hape e le molagare wa lebitso), ela hloko: sena ha se molagare wa ka ntle kapa molagare wa ka hare, ke palohare ya molagare wa ka ntle le molagare wa ka hare, o bitswang palohare ya molagare wa ka hare.
Ke eng Φ: Φ ke yuniti e akaretsang, e bolelang bophara ba ka ntle ba dipeipi, dikgopo, tshepe e potolohileng le dintho tse ding. Gape go ka twe ke molagare. Sekao, Φ609.6mm e kaya molagare wa kwa ntle wa 609.6mm.
Jaanong ka re setse re bone gore diyuniti tse tharo tseno di emela eng, kgolagano efe fa gare ga tsone?
Sa ntlha, “Bokao jwa “DN” bo batlile bo tshwana le jwa DN, tota bo kaya molagare wa leina, o o supang bogolo jwa tlhaloso eno, mme Φ ke go kopanya bobedi jono.
Sekao: fa peipi ya tshipi e le DN600, mme yone peipi ya tshipi e tshwailwe ka disentimetara, e nna 24′′. A go na le kgolagano epe fa gare ga dilo tseno tse pedi?
Karabo ke ee! Intšhe ka kakaretso ke go atisa ka tlhamalalo ga palo e e feletseng ka 25, e e lekanang le DN, jaaka 1′′*25=DN25 2′′*25=50 4′′*25=DN100 jalo le jalo.
Gone mme, go na gape le tse di farologaneng, tse di jaaka 3 ′′ * 25 = 75, tse di kgolokwe go ya kwa DN80 e e gaufi, le disentimetara dingwe tse di nang le dikhutshwane kgotsa dintlha tsa tesimale, tse di jaaka 1/2 ′′ 3/4 ′′ 1-1/4 ′′ 1-1/2 ′′ t tseno di ka se nne, 1 /-21/2. e balelwa jalo, mme go balela go batlile go tshwana, tota boleng jo bo tlhalositsweng:
1/2"=DN15 3/4"=DN20 1-1/4"=DN32 1-1/2"=DN40 2-1/2"=DN65 3-1/2"=DN90
Nako ya go romela: Mopitlwe-10-2022
