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 Mai Lamba (DN)
Diamita na asali yana nufin diamita na bututu, wanda shine ƙimar girman bututun. 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 bayyana shi ta hanyar DN tare da lamba, kamar DN200, wanda ke nuna cewa diamita na asali shine bututun ƙarfe 200 mm.
Jerin 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 kewayon diamita (DN750 - DN1200):
DN750 (inci 30)
DN800 (inci 32)
DN900 (inci 36)
DN1000 (inci 40)
DN1100 (inci 44)
DN1200 (inci 48)

4. Babban kewayon diamita (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)

OD da ID
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 aunawa ta ainihi kuma yawanci ana auna shi da milimita (mm).
Diamita na Ciki (ID):
ID shine diamita na ciki na bututun ƙarfe mai karkace. ID shine ainihin girman ciki na bututun.
Yawanci ana ƙididdige ID daga OD an rage kauri bango sau biyu a cikin milimita (mm).
ID=OD-2×kauri bango

Aikace-aikace na yau da kullun
Bututun ƙarfe masu karkace masu diamita daban-daban suna da aikace-aikace daban-daban a fannoni daban-daban:
1. Ƙaramin bututun ƙarfe mai siffar karkace (DN100 - DN300):
Ana amfani da shi sosai a fannin injiniyan birni don bututun samar da ruwa, bututun magudanar ruwa, bututun iskar gas, da sauransu.

2. bututun ƙarfe mai matsakaicin diamita mai karkace (DN350-DN700): ana amfani da shi sosai a bututun mai, iskar gas da bututun ruwa na masana'antu.

3. babban diamita mai karkace bututun ƙarfe(DN750 - DN1200): ana amfani da shi a ayyukan watsa ruwa na nesa, bututun mai, manyan ayyukan masana'antu, kamar sufuri na matsakaici.

4. bututun ƙarfe mai girman diamita mai girma (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.

Ma'auni da ƙa'idodi
Ana samar da diamita mara iyaka da sauran ƙayyadaddun bayanai na bututun ƙarfe mai karkace bisa ga ƙa'idodi da ƙa'idodi masu dacewa, kamar:
1. Ka'idojin ƙasa da ƙasa:
API 5L: ya dace da bututun ƙarfe na jigilar bututun, yana ƙayyade girma da buƙatun kayan bututun ƙarfe mai karkace.
ASTM A252: ya dace da bututun ƙarfe na tsari, girman bututun ƙarfe mai karkace da buƙatun masana'antu.

 

2. Ma'aunin Ƙasa:
GB/T 9711: wanda ya dace da bututun ƙarfe don jigilar mai da iskar gas, ya ƙayyade buƙatun fasaha na bututun ƙarfe mai karkace.
GB/T 3091: ya dace da jigilar ruwa mai ƙarancin matsi tare da bututun ƙarfe mai walda, yana ƙayyade girman bututun ƙarfe mai karkace da buƙatun fasaha.