Yakanakira madiki madhayamita epombi mune yakaderera-kupisa uye yakaderera-kudzvinyirira mamiriro, socket-weld flanges inoratidzira kubatana kwaunoisa pombi muflange uye wozochengetedza kubatanidzwa nekamwe multi-pass fillet weld.Izvi zvinoita kuti chimiro ichi chive nyore kuisa pane mamwe marudzi ewelded flange uku uchinzvenga zvipimo zvine chekuita netambo dzakarukwa.