rõhuvahe ja absoluutse staatilise rõhu suhe toru sirge lõigu keskel mõõtevahendist väljavoolu haru teljel
ratio of the differential pressure to the absolute static pressure at the centre of the straight section of the conduit containing the axis of the upstream tapping
Differential pressure ratio is the pressure ratio difference between two independent measuring points, and it is essential for monitoring and controlling processes.
