Condenser minimum Static Pressure

[akoraz]

Hi very body
I have (NH3) EVAPCO LSCB-460 with heat rejection 1980 KW condenser and would like to replace the depreciated fans by another centrifugal fans with almost similar air flow and power but need to confirm the value of minimum static pressure that the fan can be selected with

[Brian_UK]

Can you measure the present pressure or has the fan already failed?

[akoraz]

Can you measure the present pressure or has the fan already failed?

thanx Mr. Brain_UK for your response.
Unfortunately the fan failed and I couldn't do measurements.
So I need some one based on his experience to tell me , such condenser, how much must be the static/total pressure for the replacements centrifugal fan with similar power and air flow
I thought a fan with total pressure > 800 Pa may be accepted but I need a confirmation from someone know well about.