I DO FOR HARD STEEL PIPING MODEL.  IT DOESN'T SUPPORT TO CHANGE FLANGE AUTOMATICALLY WHILE CHANGING PIPING DIAMETER.

I WANT TO CHANGE FLANGE'S TYPE FROM RFSO TO RFWN WHEN ITS PIPING DIAMETER FROM 1" TO 2"

IT DOESN'T SUPPORT AUTOMATICALLY, I HAVE TO MANUAL CHANGE IT ONE FLANGE BY ONE FLANGE.

THE WORSE IS THAT, I CAN'T CHANGE THE FIRST FITTING(FLANGE) FREE.

DO YOU HAVE OTHER METHODS TO COMPLETE THIS?

THANKS.