Ma'anar Class rating na jerin B16 flange: Class rating ana suna bisa ga yarda danniya (8750PSI) na A105, WCB 1.1 kungiyar abu karkashin 454°C da matsa lamba rating dangane 60.3MP:

• P1=(10S/8750)*Pr≤Pc

P1 - ƙimar matsi na flange a daidai zafin jiki, mashaya.
S - ƙimar damuwa mai ƙyalli na kayan flange, MPa.
Pr - ƙimar Class flange.

PC – Matsakaicin Matsakaicin ƙimar matsi.

Ga wani flange na abu 150 # tare da halatta danniya na 100MPa, shi ne samuwa (10*100/8750)*150=17Bar=1.7MPa.Yayi daidai da damuwa mai ƙyalli na 150 # flange, wanda matsi na aiki da aka yarda shine 1.7%.

Sharuɗɗan don Ƙayyade yankin Bolt na jerin flange B16:
Don haɗin jikin flange ko bawul:

• AB *7000Psi≥Ag*Pc-> AB *120MPa≥Ag*Pg

Ab – ƙetare yanki yanki na kusoshi
Area na Ag gasket lamba surface ciki da waje diamita (ciki har da hali yanki a gasket ciki diamita).
PC - darajar flange
Matsakaicin iyawar kullin ba zai zama ƙasa da ƙimar cewa matsa lamba na ciki yana cikin diamita na waje na shingen shingen gasket lokacin da damuwa mai ƙyalli yake daidai da 120MPa.Don haɗin flange, a193b7 bolt tare da yawan amfanin ƙasa na 105ksi (724mpa) ana amfani dashi gabaɗaya, kuma ma'aunin aminci na ƙirar ƙulla shi ne ns ≥ 6. Saboda haka, yanki na ASME B16.5 flange ya fi girma fiye da na ASME VIII I. - misali flange.Saboda yawan adadin abin da aka samu na bolt, ƙarfin flange sau da yawa baya cancanta idan aka lissafta bisa ga dabara.Amma a zahiri, flange yana da aminci, wanda shine dalilin da ya sa ƙayyadaddun ƙayyadaddun ya nuna cewa flange ɗin da aka zaɓa bisa ga ma'aunin flange na B16.5 ba za a iya ƙididdige shi bisa ga dabara ba.

Ma'anar Sch: Sch shine taƙaitaccen tsarin tsarawa don girman bututu.Yana nufin cewa rabon tsarin tsarin bututun matsa lamba zuwa abubuwan da aka yarda da damuwa a zafin ƙira yana ninka ta 100 0 kuma ƙimar bayan zagaye.Alal misali, idan ƙirar ƙirar ta kasance 1MPa kuma ƙarfin da aka yarda da bututu shine 100Mpa, bututu tare da 1/100 100 0 = 10 da> Sch.10 ya kamata a yi amfani da shi.Domin general bututu, da yarda danniya na general kayan ne game da 100Mpa, Sch.80 iya ɗaukar 8MPa, Sch.160 iya ɗaukar 16MPa, da sauransu, akwai wani general tunani domin zabar dace Sch.