For over 50 years, The Duane Nielsen Company provided dependable and integral flow meter calibration services across various industrial plants and municipalities. Since 2022, Midwest Flo Cal is a family owned calibration business dedicated to these same values.

 Services Provided by Midwest Flo Cal

Flow Meter Calibrations & Installments

Open Channel Meters
-Flumes: Parshall, Palmer-Bowlus, Trapezoidal and more
-Weirs: V-notch, Rectangular, and more

Magmeters

Lift Station Drawdown Flow Testing


Open Channel Temperature Meter Configurations

Wet Well Level Control Meter Installments

-Services include: 4-20mA input and output verifications and trimming adjustments

Our History

1960s

Early Years

Duane Nielsen, a former representative of Fischer Porter, begins a traveling calibration business servicing flow meters around the Midwest. The Duane Nielsen Company was made.

1997

Late 1990s – 2022

Mark Dykes acquires The Duane Nielsen Company and continues to serve many of the same municipalities as Duane once did.

2022

Phase Three

Mark’s youngest son, Nathan, establishes Midwest Flo Cal LLC in April of 2022, continuing to service municipalities and industrial businesses across the Midwest.