I HAD DONE WRC 297 CALCULATIONS FOR PRESSURE VASSLE WITH "MM.FIL" CAN I CHANGE TO ENGLISH UNIT FILE, HOW ? PLS HELP

Change the units in your CAESAR II configuration file before starting the WRC processor. (Use the Configure button n the Home Ribbon.)
You can then build a new WRC model using the newly-assigned units.

Yes your right but I don't want to create new model. I want to use my previous model. Can it possible???


Thanks
Jyotsna

Sorry, but the Equipment modules don't have a units conversion facility as the Piping Input module does. You're going to have to regenerate the input if you want it in a different units system.