API-610 VS6 Nozzle check?!? 1

[RBMECH123]

Hello Everyone,
I've been assigned to check the nozzle loads for a Vertical Can Turbine pump. Suction is a non-nozzled 48 inch connection and the discharge is a nozzled 36 inch connection. I am confused and would like some guidence on how to run this sort of analysis. The suction and discharge are "too large in diameter" for the table factor of 2, and since the shaft is in the vertical (Y) position, the program will not allow me to run the API 610 analysis. Any help would be greatly appreciated, Thanks!
-Richard

 

[nickelkid]

I do not believe C2 will allow you to input OEM allowable, which is unfortunate. The API tables only go up to 16"(400mm). Unless COADE or someone else has a way to force your allowable into C2 you will need to take the nozzle loading from C2 and crank the numbers yourself. I have used excel for this task. API610 has examples so you can benchmark your program. Another option would be to work with the OEM; they may already be set up to analyze the C2 results.

 

[richay]

You're right, this is an area for improvement. I'll add this to the "Development List", which is rather long.

Richard Ay
COADE, Inc.

 

[RBMECH123]

I have made an excel sheet with some equations. I have one with a vertical in-line and one horizontal centrifugal pumps. I assume to use the centrif pump equations but with a greater factor than 2. Is there a direction that I should take to be correct?

 

[nickelkid]

RBMECH123,

I believe this is becoming an issue other than CAESER. If this is a question on the standard you may want to repost on the API Code Issue thread, if piping is the issue, the Piping & fluid mechanics thread.