Indlela yokukhetha i-flange

1. Ngoku kukho imigangatho emine yeflange eTshayina, eyile:

(1) umgangatho weflange weSizwe we-GB/T9112~9124-2000;

(2) Umgangatho woshishino lweMichiza yeFlange HG20592-20635-1997

(3) I-Mechanical industry flange standard standard JB/T74~86.2-1994;

(4) Umgangatho weflange weshishini lepetrochemical SH3406-1996

Ukuthatha umgangatho wesizwe njengomzekelo, chaza ukukhethwa kweeflange.I-flange yomgangatho wesizwe ihlukaniswe kwiinkqubo ezimbini ezinkulu: inkqubo yaseYurophu kunye nenkqubo yaseMelika.Uxinzelelo oluncinci lwenkqubo ye-European flanges lubandakanya: PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, PN4.0, PN6.3, PN10.0, kunye ne-PN16.0MPa;Uxinzelelo oluncinci lwe-American system flanges lubandakanya i-PN2.0, i-PN5.0, i-PN11.0, i-PN15.0, i-PN26.0, kunye ne-PN42.OMpa

2. Isiseko sokukhetha iiflange

(1) Iipropati zesixhobo sokuhambisa, kubandakanywa indlela eqhelekileyo, indawo eyodwa, indawo enetyhefu, indawo enokutsha kunye nesiqhushumbisi;

(2) Ngokusekelwe kwiiparameters ze-medium, i-pressure pressure, kunye nokushisa okusebenzayo, xa i-medium inqunywe, i-PN yoxinzelelo lwe-PN ye-flange inqunywe ngokusekelwe kwiqondo lokushisa lokusebenza kunye noxinzelelo lwe-medium.

(3) Ukugqiba indlela yokudibanisa kunye nefom yokutywinwa komhlaba phakathi kweeflange kunye nemibhobho ngokusekelwe kwindawo yokusetyenziswa kunye neemeko zokuxhuma.

(4) Qinisekisa iinkcukacha zeflange ngokusekelwe kwinto yokudibanisa.