Diamita mara kyau da diamita na ciki da na waje na bututun ƙarfe na karkace

Karfe bututuwani nau'i ne na bututun ƙarfe da ake yi ta hanyar mirgina ɗigon ƙarfe zuwa siffar bututu a wani kusurwar karkace (forming angle) sannan a yi masa walda. Ana amfani da shi sosai a tsarin bututun mai don mai, iskar gas da watsa ruwa.

Diamita mara kyau ita ce diamita na bututu, ƙimar ƙimar girman bututun. Don bututun ƙarfe na karkace, diamita na ƙididdiga yawanci yana kusa da, amma baya daidaita, ainihin diamita na ciki ko waje.

Yawancin lokaci ana bayyana shi ta hanyar DN tare da lamba, kamar DN200, wanda ke nuna bututun ƙarfe tare da diamita na ƙima na 200 mm.

Matsakaicin diamita na gama-gari (DN):
1. Ƙananan kewayon diamita (DN100 - DN300):
DN100 (4 inci)
DN150 (inci 6)
DN200 (inci 8)
DN250 (inci 10)
DN300 (inci 12)

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

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

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

Diamita na waje (OD): OD shine diamita na farfajiyar waje na bututun ƙarfe na karkace. OD na bututun karfe mai karkace shine ainihin girman waje na bututu. Ana iya samun OD ta ainihin ma'auni, yawanci a cikin millimeters (mm).
Diamita na Ciki (ID): ID shine diamita na saman ciki na bututun ƙarfe na karkace. ID shine ainihin girman cikin bututun. Yawanci ana ƙididdige ID ta hanyar cire kaurin bango sau biyu daga OD a cikin millimita (mm) ID = OD-2 x Kauri na bango

Filin aikace-aikace

Karfe karfe bututu tare da daban-daban maras muhimmanci diamita da daban-daban aikace-aikace a daban-daban filayen:
1. ƙananan diamitaSsaw Karfe Pipe(DN100 - DN300): wanda aka fi amfani dashi a aikin injiniya na birni don bututun samar da ruwa, bututun magudanar ruwa, bututun gas, da sauransu.
2. matsakaicin diamitaSsaw Pipe(DN350 - DN700): ana amfani da shi sosai a cikin mai, bututun iskar gas da bututun ruwa na masana'antu. 3. Babban diamita karkace bututun karfe (DN100 - DN300): da aka saba amfani da na birni injiniya bututu samar da ruwa, magudanun ruwa bututu, gas bututu, da dai sauransu.
3.Babban Diamita Ssaw Pipe(DN750 - DN1200): Ana amfani da su a ayyukan watsa ruwa mai nisa, bututun mai, manyan ayyukan masana'antu, kamar matsakaicin sufuri.
4. matsananci-babban diamitaSsaw Carbon Karfe bututu(DN1300 da sama): galibi ana amfani da su don ayyukan ruwa mai nisa na yanki, ayyukan bututun mai da iskar gas, bututun da ke karkashin ruwa da sauran manyan ayyukan more rayuwa.

Diamita mara kyau da sauran ƙayyadaddun ƙayyadaddun bututun ƙarfe na karkace yawanci ana samarwa daidai da ƙa'idodi da ƙayyadaddun bayanai:
1. kasa da kasa nagartacce: API 5L: zartar da bututun sufuri karfe bututu, ƙayyadaddun size da abu bukatun na karkace karfe bututu ASTM A252: zartar da tsarin karfe bututu, ƙayyadad da size da kuma masana'antu bukatun karkace karfe bututu.
2. na kasa misali: GB / T 9711: zartar da karfe bututu don man fetur da kuma iskar gas masana'antu sufuri, ƙayyade fasaha bukatun na karkace karfe bututu. gb / t 3091: zartar da welded karfe bututu don low-matsa lamba ruwa sufuri, ƙayyadadden girma da fasaha bukatun na karkace karfe bututu.