please use the following link to get an expansion joint for you temperature and pressure ranges.
http://www.pipingtech.com/products/expjtcat/expansion_joint-design.htm
thanks
Sameer
Our client specification is suggesting us to hold for 24 hours which doesnot looks sound to me. How can i convince to my client from some ASME reference that holding time can be reduced.
I just read your comments regarding pressure testing of pipes. Are these valid for CPVC pipes (Chapter VII) of ASME B31.3. If no then what should be the holding time for CPVC.