VS4 Pumps

[Menonshree]

I am currently evaluating offers for vessel mounted API 610 VS4 pumps for closed drain service. I have observed noticable differences in the MAWP values offered by vendors.Maximum discharge pressures including test tolerance is around 12 barg.

What should be the MAWP for the VS4 type pumps?

 

[Artisi]

As per the manufacturer's advised value.
Your decision which unit to select is based on your overall evaluation with MAWP being only one of the factors.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)