Vapour Pressure for Storage Tank

[abdelkarim10]

I am designing Storage Tank in which Internal design Pressure is : 360 lbf/ft2 (g) and the Vapor Pressure of 0.003 PSIA
Can Anyone tell if I have to include the vapor Pressure value in the design pressure ?
Thanks

 

[JStephen]

The vapor pressure is the partial pressure of the product vapor inside the tank, and would be considered as already included in the specified design pressure.

 

[LittleInch]

In the same units (psi) you're looking at 2.5 versus 0.003. That's negligible.

It's also a very low vapour pressure.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[abdelkarim10]

Thanks a lot to all now it is clear