I have a cyclone that I need to add explosion venting and a quenching system to but in order to size the vent correctly I need to know the P-red (pressure reduced which is equal to design strength) of this vessel.  The problem is this is a new design and do not have any existing data on it.  We used the generic factor of 4.4 psig (FM data sheet 7-76) but we are certain the actual # would be higher.  I'm stuck.  Is there a way to figure out the P-red or do I have to send this out to be tested.  (We are quoting this system and it'll be a one off so sending it to a testing facility is not in the cards).  Does anyone know of a way to do it or have a direction to point me in?  Any help would be greatly appreciated!

I understand this isn't the forum for such a question (I've tried some others too) but there are some extremely bright and educated people that frequent this forum that I am hoping will give some guidance.

Message was edited by: Daniel Smith