Kodi amapeto a stubndi chifukwa chiyani iyenera kugwiritsidwa ntchito?Malekezero a stub ndi zida za buttweld zomwe zingagwiritsidwe ntchito (kuphatikiza ndi lap olowa flange) m'malo mwa kuwotcherera khosi ma flanges kuti apange ma flanged.Kugwiritsa ntchito malekezero a stub kuli ndi zabwino ziwiri: kumatha kuchepetsa mtengo wokwanira wa zolumikizira zopindika pamapaipi apamwamba kwambiri (monga cholumikizira cholumikizira sichiyenera kukhala chamtundu womwewo wa chitoliro ndi malekezero a stub koma akhoza kukhala kalasi yotsika);imafulumizitsa njira yoyikapo, monga momwe flange ya lap imatha kuzunguliridwa kuti igwirizane ndi mabowo a bawuti.Mapeto a stub amapezeka mwachidule komanso aatali (ASA ndi MSS stub ends), kukula kwake mpaka mainchesi 80.
MITUNDU YA STUB MAPETO
Mapeto a stub amapezeka m'mitundu itatu yosiyana, yotchedwa "Mtundu A", "Mtundu B" ndi "Mtundu C":
- Mtundu woyamba (A) umapangidwa ndikupangidwa kuti ufanane ndi flange yolumikizana ndi lap (zinthu ziwirizi ziyenera kugwiritsidwa ntchito kuphatikiza).Malo okwerera ali ndi mawonekedwe ofanana kuti alole kuti nkhope yamoto ikhale yosalala
- Mtundu wa B wa Stub uyenera kugwiritsidwa ntchito ndi ma flanges okhazikika
- Mapeto amtundu wa C atha kugwiritsidwa ntchito limodzi ndi ma lap joint kapena slip-on flanges ndipo amapangidwa kuchokera ku mapaipi.
CHITSANZO CHACHIFUPI/CHIYALItali AMATHA (ASA/MSS)
Mapeto a stub amapezeka mumitundu iwiri yosiyana:
- chitsanzo chachifupi, chotchedwa MSS-A stub chimatha
- njira yayitali, yotchedwa ASA-A stub ends (kapena ANSI kutalika kwa stub end)
Nthawi yotumiza: Mar-23-2021