1. Idayamitha ye-DN:
FlangeIdayamitha eqhelekileyo ibhekisa kwidayamitha yesiqhelo yesikhongozeli okanye umbhobho oneflange. I-diameter ye-container ye-container ibhekisela kwi-diameter yangaphakathi ye-container (ngaphandle kwe-container ene-tube njenge-cylinder), i-diameter ye-nominal yombhobho ibhekisela kwi-diameter yayo ebizwa ngokuba yi-diameter, eyixabiso phakathi kwe-diameter yangaphakathi kunye ne-diameter yangaphandle yombhobho, uninzi lwazo lusondele kwi-diameter yangaphakathi yombhobho. Ububanzi obungaphandle bombhobho wensimbi kunye nobubanzi obufanayo bufana, kwaye ububanzi bangaphakathi buhluke ngenxa yokuba ubukhulu buyaguquka. 14 bona itafile 1.

2. Uxinzelelo lwe-PN:
Uxinzelelo lwegama linqanaba loxinzelelo olubekelwe injongo yokuseka umgangatho. 14 bona itafile yesi-2.
3. Ubuninzi boxinzelelo lokusebenza oluvumelekileyo:
Uxinzelelo lwegama kwisitya soxinzelelo lwe-flange umgangatho umiselwa phantsi kwemekoimpahla yeflangeI-16Mn (okanye i-16MnR) kunye nobushushu bokuyila i-200oC. Xa iimpahla yeflangekunye nokutshintsha kweqondo lokushisa, uxinzelelo oluphezulu oluvumelekileyo lokusebenza lwe-flange luya kwanda okanye lunciphise. Ngokomzekelo, ubuninzi bengcinezelo yokusebenza evumelekileyo ye-welding flange yentamo ende iboniswe kwiThebhile 14-3.