boofi
Mechanical
- Apr 28, 2016
- 36
Good morning y'all.
I have searched through this site and read some good information on tapping holes or nozzles in blind flanges.
Due to space requirements, we need to reduce from 16" to 10" within a 12" span. Originally, I was going to use a 16" blind flange, a 16x10 weldolet (flat), a length of 10" pipe, and a 10" flange. My question is, with the weldolet acting as reinforcement, do I still need to do thickness calcs for the (formerly) blind flange per UG-34? My gut feeling says yes, because the offset hole automatically means this is no longer a 16.5 component but a Section VIII component. I am fairly certain the 16" CL150 blind flange will fail on these calcs. Will I have to get a thicker flange then, regardless of the reinforcement provided?
I have searched through this site and read some good information on tapping holes or nozzles in blind flanges.
Due to space requirements, we need to reduce from 16" to 10" within a 12" span. Originally, I was going to use a 16" blind flange, a 16x10 weldolet (flat), a length of 10" pipe, and a 10" flange. My question is, with the weldolet acting as reinforcement, do I still need to do thickness calcs for the (formerly) blind flange per UG-34? My gut feeling says yes, because the offset hole automatically means this is no longer a 16.5 component but a Section VIII component. I am fairly certain the 16" CL150 blind flange will fail on these calcs. Will I have to get a thicker flange then, regardless of the reinforcement provided?