mass flow meter / for air / for compressed air / for nitrogen



  • Technology:


  • Fluid:

    for air, for compressed air, for nitrogen

  • Other characteristics:

    compact, high-accuracy, insertion, rugged, IP67

  • Process pressure:

    150 psi, 500 psi

  • Process temperature:

    Min.: -18 °C (-0 °F)

    Max.: 121 °C (250 °F)


The Model ST50 is a compact, low cost solution for accurate, repeatable flow rate measurement of air, compressed air or nitrogen. This insertion-style flow meter has no moving parts and is available in probe lengths for installation into pipe diameters from 2.5 inches to 24 inches [63 mm to 610 mm]. It is easily connected into the pipe via a 1/2 inch or 3/4 inch NPT compression fitting.

The ST50 electronics are housed in rugged, IP67 rated enclosure with dual conduit ports in either NPT or M20 threading. The instrument comes standard with dual 4-20 mA outputs - one for flow rate, and one for temperature. A 500 Hz pulse output (for external totalizer) can be added as an option. The transmitter/electronics can be integrally mounted with the flow element (probe), or be remote mounted to best match your installation situation.