It seems like it should work that way. We are just running into some people who are dead set that you cannot reduce the piping on the discharge of a PSV for any reason. It seems like ASME allows it if you do the calculations though.
Thank you for the response.
I've been browsing the forums and a few other sources, but cannot seem to find a definitive answer regarding reducing the discharge piping size.
ASME VIII UG-315f states that the size of the discharge line shall be such that any pressure that may exist or develop will not reduce the relieving...