It appears they have removed the link from their website. I checked a different Google link for the Guide title and that NASA page said page I was looking for was not found.
L x W = A
The area is calculated for the end and shank separately as they were different for the thermocouples we used. The two areas combined give the total area used for the calculation.
The following is a formula that was given to me that I have used for years.
K EQUIVALENT - THERMOWELL
K = [A (sub P) * A (sub TW)] / {[A (sub P) - A (sub TW)]^2}
A (sub P) = OPEN AREA OF PIPE (SQ. IN.)
L (subTWe) = ROJECTION LENGTH OF THERMOWELL END INTO PIPE (IN.)
W (subTWe) = PROJECTION...
I have made numerous spreadsheets for my use. I always verify that they are correct by comparing the results with hand calculations. Because of this I don't make a spreadsheet for a one time calculation.
On occasion I have made them available to others. Before I do, I lock all cells except...
Thermal relief valves are also used on chemical transfer lines that may be valved in. They are also used in regular (non-hot) countries. Some materials have a high coeffient of expansion per degree and could burst a pipe of not relieved. Just the sunlight on the pipe can cause the pressure to...
Publications for determing K values:
1. "Flow of Fluids - Crane Technical Paper No. 410"
2. "Cameron Hydraulic Data" from Ingersoll-Rand