FLOWMETER. 
It computes the mass, volume and caloric flow rate; enthalpy, using the temperature, pressure and differential pressure transmitters above.
ULTRASONIC FLOWMETER
Rated diameter

DN25
DN50
DN80
DN100

Flow rate

17 mc/h
70 mc/h
180 mc/h
300 mc/h

Pressure: PN16 la DN100 si
               PN40 la DN25 ¸ DN100
Temperature: -20 ... +180° C
Accuracy: £ 1%