May 3, 2010 #1 baylesr Petroleum Joined May 3, 2010 Messages 1 Location US Does, anyone know if API requires fire sized PSV's to be flanged? Or can they be NPT. Thanks!
May 3, 2010 #2 moltenmetal Chemical Joined Jun 5, 2003 Messages 5,504 Location CA Flanges are a good idea regardless as periodic recertification/set pressure testing is required. Upvote 0 Downvote