Valve diamita Φ, diamita DN, inci” Noobaasa kutaanisa ebicweka ebi eby‘okushoboorora?

Obwire obwingi nihaba hariho abanywani abatarikwetegyereza akakwate akari ahagati y’ebirikworeka “DN”, “ .Φ" na """. Erizooba, ninza kukugambira omubugufu enkoragana eri ahagati y'ebi bishatu, nyine amatsiko g'okukuhwera!

inci n’enki”

Inch (“) n’ekicweka ky’okushoboorora ekirikukoresibwa munonga omu nkora ya Amerika, nk’emipiira y’ekyoma, .za valvu, flanges, ebikumu, pampu, tees, n’ebindi, nk’oku ekirikushobororwaho kiri 10′′.

Inch (inch, omubugufu nka in.) nikimanyisa ekikumu omu Rudaaki, kandi inci n’oburaingwa bw’ekikumu. N’amazima, oburaingwa bw’ekikumu ky’omukono nabwo nibutandukaana. Omu kyasha kya 14, Omugabe Edward II akarangirira “Inci y’ebiragiro ey’omutindo”. Ekiragiro kiri ngu oburaingwa bw’embibo ishatu ezihango ezitoorainwe kuruga ahagati y’amatu ga sayiri kandi zitebeekanisiibwe omu murongooti ni inci emwe.

Okutwarira hamwe 1′′=2.54cm=25.4mm

DN nikimanyisa ki

DN n’ekicweka ky’okumanyisa ekirikukoresibwa munonga omu nkora za China na Buraaya, kandi n’ekicweka ky’okumanyisa eky’okutaho akamanyiso aha mipiira,za valvu, ebipande, ebikwato ebirikubikwataho, n’ebipampu, nk’ebipampu .DN250.

DN neemanyisa diamita y’eiziina y’omupiira (erikumanywa nka diamita y’eiziina), manya: egi ti diamita y’aheeru nari diamita y’omunda, kureka omubaro gw’ahagati gw’oburaingwa bw’aheeru n’obwa diamita y’omunda, ogurikwetwa omubaro gw’omunda ogwagati.

Nkiki ekyoΦ

Φ ni ekicweka ekirikukoresibwa abantu boona, ekirikumanyisa oburaingwa bw’aheeru bw’emipiira, nari ebikumu, ebyoma ebirikwetoorora n’ebindi bintu.

Mbwenu shi ni kakwate ki akari ahagati yaabo?

Eky’okubanza, amakuru agahandiikirweho “”" na “DN” nigashushana haihi. Okukira munonga nigamanyisa diamita y’eiziina, erikworeka obuhango bw’okushoboorora oku, kandi .Φ ni okuteerana kw’ebintu bibiri ebi.

ekyokureberaho

Nk’eky’okureeberaho, omupiira gw’ekyoma gwaba guri DN600, omupiira nigwo gumwe gw’ekyoma gwaba guhandiikirwe omu inci, niguhinduka 24′′. Hariho akakwate ahagati y’ebintu ebi byombi?

Eky’okugarukamu ni eego! Inci yoona n’omubaro gw’omutaano kandi kugikanyisa butoosha na 25 neeshushana na DN, nka 1′′*25=DN25, 2′′*25=50, 4′′*25=DN100, n’ebindi. enshonga nka 1/2′′, 3/4′′, 1-1/4′′, 1-1/2′′, 2-1/2′′, 3-1/ 2′′ n’ebindi, ezi tizirikubaasa kubarwa nk’ezo, kwonka okubara ni nk’oku kumwe, omu kubanza omuhendo ogurikworekwa:

1/2′′=DN15

3/4′′=DN20

1-1/4′′=DN32

1-1/2′′=DN40

2′′=DN50

2-1/2′′=DN65

3′′=DN80