Valve diameter Φ, diameter DN, santimetero ”Urashobora gutandukanya ibi bice byihariye?

Hariho inshuti nyinshi zidasobanukirwa isano iri hagati ya "DN", "Φ"Na" "". Uyu munsi, nzavuga muri make isano iri hagati ya batatu kuri wewe, nizeye ko izagufasha!

intambwe imwe ”

Inch (“) nigice gikunze gukoreshwa muri sisitemu y'Abanyamerika, nk'imiyoboro y'ibyuma,indanga, flanges, inkokora, pompe, tees, nibindi, nkibisobanuro ni 10 ″.

Inch (incim, mu magambo ahinnye nko muri.) Bisobanura igikumwe mu giholandi, na santimetero ni uburebure bw'igikumwe. Nibyo, uburebure bwikumwe nabwo buratandukanye. Mu kinyejana cya 14, Umwami Edward II yatangaje “Inch Legal Inch”. Ibiteganijwe ni uko uburebure bwibinyampeke bitatu binini byatoranijwe hagati yamatwi ya sayiri kandi butondekanye kumurongo ni santimetero imwe.

Mubisanzwe 1 ″ = 2.54cm = 25.4mm

DN ni iki

DN nigice gikunze gukoreshwa mubushinwa na sisitemu yuburayi, kandi ni nacyo kimenyetso cyo gushyira imiyoboro,indanga, flanges, fitingi, na pompe, nkaDN250.

DN bivuga diameter nominal ya pipe (izwi kandi nka diameter nominal), icyitonderwa: iyi ntabwo ari diameter yo hanze cyangwa diameter y'imbere, ahubwo ni impuzandengo ya diameter yo hanze na diameter y'imbere, bita impuzandengo y'imbere.

NikiΦ

Φ nigice gisanzwe, bivuga diameter yo hanze yimiyoboro, cyangwa inkokora, ibyuma bizunguruka nibindi bikoresho.

None se isano irihe hagati yabo?

Mbere ya byose, ibisobanuro byaranzwe na "" "na" DN "birasa. Bisobanura ahanini diameter nominal, byerekana ingano yibi bisobanuro, naΦ ni ihuriro ryibiri.

urugero

Kurugero, niba umuyoboro wibyuma ari DN600, niba umuyoboro umwe wicyuma urangwa na santimetero, biba 24 ″. Haba hari isano hagati yabyo bombi?

Igisubizo ni yego! Ubusanzwe santimetero ni integer kandi igwizwa na 25 bingana na DN, nka 1 ″ * 25 = DN25, 2 ″ * 25 = 50, 4 ″ * 25 = DN100, nibindi. Birumvikana ko hariho ibitandukanye nka 3 ″ * 25 = 75 Kuzenguruka ni DN80, kandi hariho santimetero zimwe na semicolons cyangwa ingingo icumi nka 1/2 ″, 3/4 ″, 1-1 / 4 ″, 1-1 / 2 ″, 2-1 / 2 ″ , 3-1 / 2 ″ nibindi, ibi ntibishobora kubarwa gutya, ariko kubara ni bimwe, mubyukuri agaciro kerekanwe:

1/2 ″ = DN15

3/4 ″ = DN20

1-1 / 4 ″ = DN32

1-1 / 2 ″ = DN40

2 ″ = DN50

2-1 / 2 ″ = DN65

3 ″ = DN80