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 Na Ƙa'ida (DN)
Diamita na ƙima yana nufin ƙananan diamita na bututu, wanda shine 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 cewa diamita mara kyau shine bututun ƙarfe 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 kewayon diamita (DN350 - DN700):
DN350 (inci 14)
DN400 (inci 16)
DN450 (inci 18)
DN500 (inci 20)
DN600 (24 inci)
DN700 (28 inci)

3. Babban kewayon 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)

OD da ID
Diamita na Wuta (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 kuma yawanci ana auna shi cikin millimeters (mm).
Diamita na Ciki (ID):
ID shine saman diamita na ciki na bututun ƙarfe na karkace. ID shine ainihin girman cikin bututun.
Yawanci ana ƙididdige ID daga OD ya rage kaurin bango sau biyu a millimeters (mm).
ID=OD-2× kaurin bango

Aikace-aikace na yau da kullun
Karfe karfe bututu tare da daban-daban maras muhimmanci diamita da daban-daban aikace-aikace a daban-daban filayen:
1. Ƙananan diamita karkace bututun karfe (DN100 - DN300):
Yawanci ana amfani dashi a aikin injiniya na birni don bututun samar da ruwa, bututun magudanar ruwa, bututun gas, da sauransu.

2. Matsakaicin diamita karkace bututun karfe (DN350-DN700): yadu amfani da man, iskar gas bututu da masana'antu ruwa bututu.

3. babban diamita karkace karfe bututu(DN750 - DN1200): Ana amfani da su a ayyukan watsa ruwa mai nisa, bututun mai, manyan ayyukan masana'antu, kamar matsakaicin sufuri.

4. Super babban diamita karkace bututun karfe (DN1300 da sama): akasari amfani da giciye-yanayin ruwa mai nisa ayyukan, man fetur da iskar gas, bututun karkashin ruwa da sauran manyan sikelin kayayyakin more rayuwa.

Ka'idoji da ka'idoji
Mafi girman diamita da sauran ƙayyadaddun bututun ƙarfe na karkace yawanci ana kera su daidai da ƙa'idodi da ƙa'idodi masu dacewa, kamar:
1. Matsayin duniya:
API 5L: zartar da bututun sufuri na bututun ƙarfe, ya ƙayyade girman da buƙatun kayan bututun ƙarfe na karkace.
ASTM A252: zartar da bututun ƙarfe na tsarin, girman bututun ƙarfe na karkace da buƙatun masana'antu.

 

2. Matsayin Kasa:
GB / T 9711: m to karfe bututu for man fetur da kuma iskar gas masana'antu sufuri, ƙayyade fasaha bukatun na karkace karfe bututu.
GB / T 3091: m zuwa low-matsa lamba ruwa sufuri da welded karfe bututu, ƙayyade karkace karfe bututu size da fasaha bukatun.