Umurambararo n'umurambararo w'imbere n'inyuma by'umuyoboro w'icyuma gizunguruka

Umuyoboro w'icyuma uzungurukani ubwoko bw'umuyoboro w'icyuma ukozwe binyuze mu kuzingira agace k'icyuma mu ishusho y'umuyoboro ku nguni runaka y'uruziga (inguni yo gukora) hanyuma ukawusudira. Ukoreshwa cyane mu miyoboro yo kohereza peteroli, gaze karemano n'amazi.

 
Diametero Nominal (DN)
Umurambararo w'umuyoboro yerekeza ku murambararo w'umuyoboro, ari na wo mubare w'umuyoboro. Ku muyoboro w'icyuma uzunguruka, umurambararo w'umuyoboro usanzwe wegereye, ariko ntungana n'umurambararo nyawo w'imbere cyangwa inyuma.
Ubusanzwe igaragazwa na DN hamwe n'umubare, nka DN200, bigaragaza ko umurambararo w'umuyoboro w'icyuma wa mm 200.
Ingano ya diyametero rusange (DN):
1. Ingano nto y'umurambararo (DN100 - DN300):
DN100 (inchi 4)
DN150 (inchi 6)
DN200 (inchi 8)
DN250 (inchi 10)
DN300 (inchi 12)

2. Ingano y'umurambararo uringaniye (DN350 - DN700):
DN350 (inchi 14)
DN400 (inchi 16)
DN450 (inchi 18)
DN500 (inchi 20)
DN600 (inchi 24)
DN700 (inchi 28)

3. Ingano nini y'umurambararo (DN750 - DN1200):
DN750 (santimetero 30)
DN800 (inchi 32)
DN900 (inchi 36)
DN1000 (inchi 40)
DN1100 (inchi 44)
DN1200 (inchi 48)

4. Ingano nini cyane y'umurambararo (DN1300 no hejuru yayo):
DN1300 (inchi 52)
DN1400 (inchi 56)
DN1500 (inchi 60)
DN1600 (inchi 64)
DN1800 (inchi 72)
DN2000 (inchi 80)
DN2200 (inchi 88)
DN2400 (inchi 96)
DN2600 (inchi 104)
DN2800 (inchi 112)
DN3000 (inchi 120)

OD na ID
Ingano y'inyuma (OD):
OD ni umurambararo w'ubuso bw'inyuma bw'umuyoboro w'icyuma uzunguruka. OD y'umuyoboro w'icyuma uzunguruka ni ingano nyayo y'inyuma y'umuyoboro.
OD ishobora kuboneka hakoreshejwe uburyo nyabwo bwo gupima kandi ubusanzwe ipimwa muri milimetero (mm).
Ingano y'imbere (indangamuntu):
ID ni umurambararo w'imbere w'umuyoboro w'icyuma uzunguruka. ID ni ingano nyayo y'imbere y'umuyoboro.
ID isanzwe ibarwa uhereye kuri OD ukuyemo kabiri ubunini bw'urukuta muri milimetero (mm).
ID=OD-2×ubugari bw'urukuta

Porogaramu zisanzwe
Imiyoboro y'icyuma ikoze mu buryo bw'uruziga ifite uburebure butandukanye ifite akamaro gatandukanye mu nzego zitandukanye:
1. Umuyoboro muto w'icyuma gifite umurambararo muto (DN100 - DN300):
Ikoreshwa cyane mu buhanga bw'umujyi ku miyoboro y'amazi, imiyoboro y'amazi, imiyoboro ya gazi, n'ibindi.

2. umuyoboro w'icyuma upima umurambararo uringaniye (DN350-DN700): ukoreshwa cyane mu miyoboro ya peteroli, gaze karemano n'imiyoboro y'amazi yo mu nganda.

3. umuyoboro munini w'icyuma gizunguruka ufite uburebure bunini(DN750 - DN1200): ikoreshwa mu mishinga yo kohereza amazi mu ntera ndende, imiyoboro ya peteroli, imishinga minini y’inganda, nko gutwara abantu n’ibintu mu buryo buciriritse.

4. Umuyoboro munini cyane w'icyuma gizunguruka (DN1300 no hejuru yayo): ukoreshwa cyane cyane mu mishinga y'imiyoboro y'amazi, peteroli na gaze ikorerwa mu turere twinshi, imiyoboro y'amazi yo munsi y'amazi n'indi mishinga minini y'ibikorwa remezo.

Amahame ngenderwaho n'amahame ngenderwaho
Ubugari bw'umurambararo n'ibindi bipimo by'umuyoboro w'icyuma uzunguruka bikunze gukorwa hakurikijwe ibipimo n'amahame bireba, nka:
1. Amahame mpuzamahanga:
API 5L: ikoreshwa ku muyoboro w'icyuma utwara imiyoboro, igena ingano n'ibikoresho bisabwa ku muyoboro w'icyuma uzunguruka.
ASTM A252: ikoreshwa ku muyoboro w'icyuma wubatswe, ingano y'umuyoboro w'icyuma uzunguruka hamwe n'ibisabwa mu gukora.

 

2. Amahame Ngenderwaho y'Igihugu:
GB/T 9711: ikoreshwa ku muyoboro w'icyuma mu gutwara inganda za peteroli na gaze, igaragaza ibisabwa mu rwego rwa tekiniki ku muyoboro w'icyuma uzunguruka.
GB/T 3091: ikoreshwa mu gutwara amazi afite umuvuduko muto hamwe n'umuyoboro w'icyuma uhujwe, igaragaza ingano y'umuyoboro w'icyuma uzunguruka n'ibisabwa mu rwego rwa tekiniki.