Diamita Valve Φ, diamita DN, inch" Shin za ku iya bambance waɗannan ƙayyadaddun raka'a?

Sau da yawa akwai abokai waɗanda ba su fahimci dangantakar da ke tsakanin ƙayyadaddun "DN", "Φ" da "" A yau, zan taƙaita muku dangantakar da ke tsakanin su uku, da fatan in taimake ku!

menene inci"

Inch (“) yanki ne da aka saba amfani da shi a cikin tsarin Amurka, kamar bututun ƙarfe,bawuloli, flanges, gwiwar hannu, famfo, tees, da dai sauransu, kamar ƙayyadaddun ne 10 ″.

Inch (inch, gajeriyarsa kamar a.) yana nufin babban yatsa a cikin Yaren mutanen Holland, kuma inci shine tsawon babban yatsan hannu. Tabbas, tsayin babban yatsan ya bambanta. A cikin karni na 14, Sarki Edward II ya ba da sanarwar "Standard Legal Inch". Shaidar ita ce tsayin manyan hatsi uku da aka zaɓa daga tsakiyar kunnuwan sha'ir kuma an jera su a jere ya kai inci ɗaya.

Gabaɗaya 1″=2.54cm=25.4mm

Menene DN

DN yanki ne na ƙayyadaddun bayanai da aka saba amfani da shi a cikin Sin da tsarin Turai, kuma shine ƙayyadaddun ƙayyadaddun alamar bututu,bawuloli, flanges, kayan aiki, da famfo, kamarDN250.

DN yana nufin ƙananan diamita na bututu (wanda kuma aka sani da diamita mara kyau), lura: wannan ba diamita na waje ba ne ko diamita na ciki, amma matsakaicin diamita na waje da diamita na ciki, wanda ake kira matsakaicin diamita na ciki.

MeneneΦ

Φ naúrar ce gama-gari, wacce ke nufin waje diamita na bututu, ko gwiwar hannu, zagaye karfe da sauran kayan.

To meye alakar su?

Da farko dai, ma'anar da aka yiwa alama da """ da "DN" kusan iri ɗaya ne. Ainihin suna nufin diamita maras tushe, wanda ke nuna girman wannan ƙayyadaddun, kumaΦ shine hadewar biyun.

misali

Misali, idan bututun karfe DN600 ne, idan bututun karfe daya aka yi masa alama a inci, ya zama 24 inci. Shin akwai wata alaƙa tsakanin su biyun?

Amsar ita ce eh! Inci gabaɗaya shine lamba kuma ana ninka shi kai tsaye da 25 daidai DN, kamar 1″*25=DN25, 2″*25=50, 4″*25=DN100, da sauransu. Tabbas, akwai mabambanta kamar 3″. *25=75 Zagaye shine DN80, kuma akwai wasu inci masu ma'ana ko maki goma kamar su. 1/2″, 3/4″, 1-1/4″, 1-1/2″, 2-1/2″, 3-1/ 2″ da sauransu, ba za a iya lissafta su haka ba, amma lissafin kusan iri ɗaya ne, asali ƙayyadadden ƙimar:

1/2″ = DN15

3/4″ = DN20

1-1/4″=DN32

1-1/2″=DN40

2″=DN50

2-1/2″=DN65

3″=DN80