Calculate API 520 nozzle effective diameter and cross section area from letter designation (letter designation D to T).
The effective nozzle sizes are taken from API 526. The effective nozzle sizes should be used for initial sizing. The actual nozzle size should be used to verify the pressure relief valve capacity. Use the Result Table option to display a list of the standard nozzle sizes.
Tool Input
- dotype : Nozzle Diameter Type
- Dou : User Defined Nozzle Diameter
- Axu : User Defined Nozzle Area
Tool Output
- Ax : Cross Section Area
- Do : Inside Diameter