Mapeto a Stub - Gwiritsani Ntchito Pa Ma Flange Joints

Kodi ndi chiyanimapeto a stubNdipo n’chifukwa chiyani ziyenera kugwiritsidwa ntchito? Mapeto a stub ndi zomangira za buttweld zomwe zingagwiritsidwe ntchito (kuphatikiza ndi flange yolumikizira lap joint) m'malo mogwiritsa ntchito welding throws kuti apange ma flange olumikizana. Kugwiritsa ntchito mapeto a stub kuli ndi ubwino uwiri: kungachepetse mtengo wonse wa ma flanged joints a mapaipi okhala ndi zinthu zapamwamba (popeza flange yolumikizira lap joint sikuyenera kukhala ndi chinthu chomwecho cha chitoliro ndi stub koma ikhoza kukhala yotsika);Zimathandizira kukhazikitsa mwachangu, chifukwa flange ya lap joint imatha kuzunguliridwa kuti zithandize kulumikiza mabowo a bolt. Mapeto a stub amapezeka mu mawonekedwe afupiafupi komanso ataliatali (mapeto a ASA ndi MSS stub), mpaka mainchesi 80.

Mitundu ya Mapeto a Stub

Mapeto a stub amapezeka m'mitundu itatu yosiyanasiyana, yotchedwa "Mtundu A", "Mtundu B" ndi "Mtundu C":

• Mtundu woyamba (A) umapangidwa ndi kupangidwa kuti ugwirizane ndi lap joint backing flange yokhazikika (zinthu ziwirizi ziyenera kugwiritsidwa ntchito pamodzi). Malo olumikizirana ali ndi mawonekedwe ofanana kuti alole kuti nkhope yowala iyende bwino.
• Mapeto a stub mtundu B ayenera kugwiritsidwa ntchito ndi ma slip-on flanges okhazikika
• Mapeto a stub a Type C angagwiritsidwe ntchito ndi lap joint kapena slip-on flanges ndipo amapangidwa kuchokera ku mapaipi.

CHITSANZO CHACHIFUPI/CHACHITALI CHIMENE CHIMATHERA (ASA/MSS)

Mapeto a stub amapezeka m'njira ziwiri zosiyana:

• kachitidwe kakafupi, kotchedwa mapeto a MSS-A
• mawonekedwe ataliatali, otchedwa ASA-A stub ends (kapena ANSI length stub end)