Diamita mai mahimmanci da diamita na ciki da waje na bututun ƙarfe mai karkace

bututun ƙarfe mai karkacewani nau'in bututun ƙarfe ne da aka yi ta hanyar naɗe wani bututun ƙarfe zuwa siffar bututu a wani kusurwa mai karkace (kusurwar da ke samar da shi) sannan a haɗa shi da walda. Ana amfani da shi sosai a tsarin bututun mai, iskar gas da kuma watsa ruwa.

Diamita na asali shine diamita na bututu, ƙimar da ba ta kai girman bututun ba. Ga bututun ƙarfe mai karkace, diamita na asali yawanci yana kusa da, amma ba daidai yake da ainihin diamita na ciki ko waje ba.

Yawanci ana nuna shi ta hanyar DN tare da lamba, kamar DN200, wanda ke nuna bututun ƙarfe mai diamita mara iyaka na 200 mm.

Matsakaicin diamita mara iyaka (DN):
1. Ƙaramin diamita (DN100 - DN300):
DN100 (inci 4)
DN150 (inci 6)
DN200 (inci 8)
DN250 (inci 10)
DN300 (inci 12)

2. Matsakaicin diamita (DN350 - DN700):
DN350 (inci 14)
DN400 (inci 16)
DN450 (inci 18)
DN500 (inci 20)
DN600 (inci 24)
DN700 (inci 28)

3. Babban Girman Diamita (DN750 - DN1200)
DN750 (inci 30)
DN800 (inci 32)
DN900 (inci 36)
DN1000 (inci 40)
DN1100 (inci 44)
DN1200 (inci 48)

4. Matsakaicin diamita mai girma (DN1300 da sama)
DN1300 (inci 52)
DN1400 (inci 56)
DN1500 (inci 60)
DN1600 (inci 64)
DN1800 (inci 72)
DN2000 (inci 80)
DN2200 (inci 88)
DN2400 (inci 96)
DN2600 (inci 104)
DN2800 (inci 112)
DN3000 (inci 120)

Diamita na waje (OD): OD shine diamita na saman waje na bututun ƙarfe mai karkace. OD na bututun ƙarfe mai karkace shine ainihin girman wajen bututun. Ana iya samun OD ta hanyar auna ainihin, yawanci a cikin milimita (mm).
Diamita ta Ciki (ID): ID shine diamita na saman ciki na bututun ƙarfe mai karkace. ID shine ainihin girman ciki na bututun. Yawanci ana ƙididdige ID ta hanyar cire ninki biyu na kauri daga bango daga OD a cikin milimita (mm) ID = OD-2 x Kauri na Bango

Filin aikace-aikace

Bututun ƙarfe masu karkace masu diamita daban-daban suna da aikace-aikace daban-daban a fannoni daban-daban:
1. ƙaramin diamitaSsaw Karfe Bututu(DN100 - DN300): wanda aka fi amfani da shi a fannin injiniyan birni don bututun samar da ruwa, bututun magudanar ruwa, bututun iskar gas, da sauransu.
2. matsakaicin diamitaBututun Ssaw(DN350 - DN700): ana amfani da shi sosai a bututun mai, iskar gas da bututun ruwa na masana'antu. 3. babban bututun ƙarfe mai siffar karkace (DN100 - DN300): ana amfani da shi sosai a bututun samar da ruwa na injiniyan birni, bututun magudanar ruwa, bututun iskar gas, da sauransu.
3.Babban bututun Ssaw mai diamita(DN750 - DN1200): ana amfani da shi a ayyukan watsa ruwa na nesa, bututun mai, manyan ayyukan masana'antu, kamar sufuri na matsakaici.
4. diamita mai girma sosaiSsaw Carbon Karfe bututu(DN1300 zuwa sama): galibi ana amfani da shi don ayyukan bututun ruwa na nesa, mai da iskar gas na yankuna daban-daban, bututun ruwa na ƙarƙashin ruwa da sauran manyan ayyukan ababen more rayuwa.

Ana samar da bututun ƙarfe mai siffar ƙwallo da diamita da sauran ƙayyadaddun bayanai bisa ga ƙa'idodi da ƙayyadaddun bayanai masu dacewa:
1. ƙa'idodin ƙasa da ƙasa: API 5L: ya dace da bututun ƙarfe na jigilar bututun, ya ƙayyade girman da buƙatun kayan bututun ƙarfe mai karkace ASTM A252: ya dace da bututun ƙarfe na tsari, ya ƙayyade girman da buƙatun masana'antu na bututun ƙarfe mai karkace.
2. Ma'aunin ƙasa: GB/T 9711: ya shafi bututun ƙarfe don jigilar mai da iskar gas, ya ƙayyade buƙatun fasaha na bututun ƙarfe mai karkace. gb/t 3091: ya shafi bututun ƙarfe mai walda don jigilar ruwa mai ƙarancin matsi, ya ƙayyade girma da buƙatun fasaha na bututun ƙarfe mai karkace.