Kodwa-ke, kufanele kukhawulelwe kuma-927 degrees Celsius futhi akufanele ahambe ngaphansi kwalokho. Izinga lokushisa elifanelekile lokushisa okushisayo kwensimbi engenasisekelo kuphakathi kuka-1149¡Ãc - 1260¡Ãc. Ukuze uthole ukumelana okuphezulu kokugqwala, ama-flange angenazimpawu zensimbi adinga ukuvezwa komsebenzi. Lawa ma-asTM a182 F316 Flanges ayimpumputhe ayatholakala emakilasini wokucindezela ahlukene. I-Werkstoff No 1.4301 Lap Flanges isetshenziswa kumakhemikhali, amandla, amandla, izimboni zezokwelapha kanye ne-petroleum.