Njaajeendi valve Φ, njaajeendi DN, inch” Mbele aɗa waawi seerndude ɗeen yuɓɓooji sifaaji ?

Heewi wonde ko sehilaaɓe ɓe paamataa jokkondire hakkunde sifaaji “DN”, “ .Φ" be """. Hannde, maa mi ciimtu jokkondiral hakkunde tato ɓee wonande on, miɗo sikki maa mi wallu on!

ko woni innde”

Inch (“) ko huunde huutorteende e nder njuɓɓudi Amerik, ko wayi no tuubaaji njamndi,valveeji, flanges, elbows, pompe, tees, ekn, ko wayi no sifaa ko 10′′.

Inch (inch, ko famɗi fof in.) firti ko ɓuuɓri e ɗemngal Holanndee, inch ko njuuteendi ɓuuɓri. Ko goonga, njuuteendi wuttulo ngoo kadi ina seerti. E teeminannde 14ɓiire, laamɗo Eduar II yaltini « Inch Legal Standard ». Kuulal ngal ko njuuteendi ɓiɗɓe leɗɗe tati ɓurɗe mawnude cuɓaaɗe e hakkunde noppi barmeeji ɗii, njuɓɓinaaɗe 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 Siin e Orop, kadi ko kañum kadi woni teskuyaaji ngam marde tuubaaji,valveeji, flangeeji, fittaandu, e pompe, ko wayi noDN250.

DN woni njaajeendi nominaali tuuba (anndiraandi kadi njaajeendi nominaali), tesko : ɗum wonaa njaajeendi yaajndi, wonaa njaajeendi nder, kono ko hakkundeere njaajeendi yaajndi e njaajeendi nder, ina wiyee njaajeendi hakkundeeri nder.

Dume onΦ

Φ ko yuɓɓo huuɓtodinngo, ko ɗum firti ko njaajeendi yaajndi tuubaaji, walla koppi, njamndi mboɗeeri e geɗe goɗɗe.

So ɗuum ɓennii hol ko woni jokkondiral hakkunde majji?

Ko adii fof, maanaaji maandeeji “”" e “DN” ina ɓadii gootum. Ko ɓuri heewde e majji ko diametre nominaale, kollitooji mawneeki ndeeɗoo sifaa, e...Φ ko jillondiral ɗiɗo ɓee.

Bana sappinol

Yeru, so tuuba njamndi ko DN600, so tuuba njamndi ngootiri ina maantini e inɗe, ɗum wonta 24′′. Mbele won ko jokkondiri hakkunde majji?

Jaabawol ngol ko eey! Inch kuuɓtodinɗo oo ko limre timmunde kadi so sowiima e 25 to bannge toŋngoode fotde DN, ko wayi no 1′′*25=DN25, 2′′*25=50, 4′′*25=DN100, ekn... Ko goonga, ina woodi ceertuɗi ko wayi no 3′′*25=75 inɗe ina njogii se toɓɓe ko wayi no 1/2′′, 3/4′′, 1-1/4′′, 1-1/2′′, 2-1/2′′, 3-1/ 2′′ e ko nanndi heen, ɗeen mbaawataa hiiseede 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′′=DN50

2-1/2′′=DN65

3′′=DN80