Pump Material Selection for Casing

[Xeros]

Hi, i'm Xeros

In accordance with API610, CI or CS could be used for the casing material.

I have question between CI and CS.

Sometimes, CI is used for casing material, sometimes CS.

Could i know the detailed reason why sometimes, CI is selected or sometimes CS?

 

[nickelkid]

What is your application?

 

[Xeros]

Sorry,
Generally fire water pump or liquid sulfur service

 

[Artisi]

CI for fire service
cs (cast steel) for liquid sulphur.

 

[Xeros]

Thank you for your help.

AND MORE,
I want to know the reason CI for Fire Service and CS for Liquid Sulfur.

Is the reason that CS is more corrosion resistant than CI?
Or mechanical properties?

 

[Artisi]

CI is sufficient for the fire service whereas CS in a better choice as it's much safer for pumping hot liquid sulphur - not subject to failure from thermal shock which CI is.