Speckworm
Mechanical
- Feb 3, 2010
- 14
Hi Folks and Distinguished Experts,
This question pertains to having a repad for a Nozzle on the INSIDE of the vessel wall. For my "h" value per Fig UG-37.1, do I use the definition "distance nozzle projects beyond the inner surface of the vessel wall," or do I take the distance the nozzle projects beyond the repad?
Looking at the external example, the reinforcement area is "2.5*tn + te", thus the value of "2.5*tn" is only that portion that projects beyond the repad. It seems to be that this would represent "h"
So if my repad is on the inside and is 1/4" thick, and my nozzle projects 1" from the inner surface of the vessel wall, in the equation for A3, would I use h=1.0 or h=0.75" for "2h*ti*fr2"???
Any help would be greatly appreciated. Thanks.
This question pertains to having a repad for a Nozzle on the INSIDE of the vessel wall. For my "h" value per Fig UG-37.1, do I use the definition "distance nozzle projects beyond the inner surface of the vessel wall," or do I take the distance the nozzle projects beyond the repad?
Looking at the external example, the reinforcement area is "2.5*tn + te", thus the value of "2.5*tn" is only that portion that projects beyond the repad. It seems to be that this would represent "h"
So if my repad is on the inside and is 1/4" thick, and my nozzle projects 1" from the inner surface of the vessel wall, in the equation for A3, would I use h=1.0 or h=0.75" for "2h*ti*fr2"???
Any help would be greatly appreciated. Thanks.
