Ko woni “inch” : Inch (“) ko yuɓɓo sifaa kuuɓtodinngo wonande njuɓɓudi Amerik, ko wayi no tuubaaji njamndi, valve, flange, elbow, pompe, teewu ekn, ko wayi no sifaa ko 10′′.
Inndees (inch, ɓuuɓnaama no in.) firti ko ɓuuɓri e ɗemngal Holanndee, inch gooto ko njuuteendi ɓuuɓri. Ko goonga, njuuteendi wuttulo neɗɗo kadi ina seerti. E teeminannde 14ɓiire, laamɗo Eduard II yaltini « innde sariya kuuɓtodinnde ».
Ina wiyee wonde njuuteendi ɓiɗɓe leɗɗe tati ɓurɗe mawnude cuɓaaɗe e hakkunde noppi barmeeji, njuɓɓinaaɗi e nder laylaytol ko innde wootere.
Haa teeŋti noon 1′′=2,54cm=25,4mm
Hol ko woni DN : DN ko yuɓɓo teskinngo huutorteengo e nder njuɓɓudiiji Siin e Orop. Ko ɗum kadi sifaa ngam anndude tuubaaji, valveeji, flangeeji, fittaandu tuubaaji e pompe, ko wayi no DN250.
DN ko njaajeendi nominaali tuuba (anndiraandi kadi njaajeendi nominaali), tesko : ɗum wonaa njaajeendi yaajndi, wonaa njaajeendi nder, ko hakkundeere njaajeendi yaajndi e njaajeendi nder, wiyetee ko hakkundeere njaajeendi nder.
Ko woni Φ : Φ ko yuɓɓo huuɓtodinngo, woni njaajeendi yaajndi tuubaaji, koppi, njamndi mboɗeeri e geɗe goɗɗe. Ina waawi kadi wiyeede ko diameter. Yeru, Φ609.6mm woni njaajeendi yaajndi 609.6mm.
Jooni noon, nde min ciftorii ko ɗeeɗoo geɗe tati njiylotoo, hol ko jokkondiri majji ?
Ko adii fof, “Maanaa “DN” ina fotnoo nanndude e DN, ko ɓuri heewde ko ɗum firti ko njaajeendi nominaali, hollirndi mawneeki ndeeɗoo sifaa, Φ ko hawrude e ɗiɗo ɓee.
Yeru : so tuuba njamndi ko DN600, kadi tuuba njamndi ngootiri ina waɗi maandeeji inɗe, ɗum wonta 24′′. Mbele won ko jokkondiri hakkunde majji?
Jaabawol ngol ko eey! Innde huuɓtodinnde ndee ko softinde limre timmunde ndee e 25, ko ɗum fotndi e DN, ko wayi no 1′′*25=DN25 2′′*25=50 4′′*25=DN100 e ko nanndi heen.
Ko goonga kadi ina woodi ceertuɗi, ko wayi no 3′′*25=75, cirƴaaɗi haa DN80 ɓurɗo ɓadaade, e won e inɗe jogiiɗe toɓɓe toɓɓere walla toɓɓe toɓɓere, ko wayi no 1/2′′ 3/4′′ 1-1/4′′ 1-1/2′′ ekn ɗeen mbaawataa wonde, alaa,31/2 hiisaama noon, kono hiisa oo ko gootum, ko ɓuri heewde ko nafoore toɗɗaande ndee:
1/2′′=DN15 3/4′′=DN20 1-1/4′′=DN32 1-1/2′′=DN40 2-1/2′′=DN65 3-1/2′′=DN90
Waktu posto: 10 mars-2022
