Feed Water Control Station DP Transmitter Range

Hi everybody.

I have 2 Nos of 100 %( W + S) & 1 No of 30% control valves who are Installed at FCS ( feed water control Station ) at the outlet of BFP ( Boiler Feed Pump). The Static pressure of 100 % & 30% Control Valve is 181 bar , and the Max DP sizing of Control Valve as per CV supplier is 15 Bar.

Question :

The DPT (Differential Press transmitter) to be Installed across the FCS for Scoop Control of BFP , should be of what range ? ,

do I need to consider Static Pressure and Install a 200 Barg DPT or the Max DP sizing values are enough( to decide for 20 Bar DPT).

Those who have installed or has experience of Installing or engineering of such DPT( Differential Press transmitter) across FCS ..please share your experience explaining why they don;t recommend 200 Barg DPT .. as such DPT's are not available with 0.02 % accuracy.