Call: (800) 354 - 4297Email
  • Constant flow regardless of pressure fluctuation
  • Quiet operation
  • Pressure Differential Range 15 - 150 psid
  • Temperature Range 32º to 160º F
  • Accuracy ± 10%
  • Suitable for Most Coolants
  • Consult factory for differential pressures lower than 15 psid
Special Features

Unique Hays design
Patented Flow Control Assembly provides a constant flow rate on a consistent basis.

Flexing diaphragm is self-cleaning
Maintains clear orifice by flexing action of patented diaphragm assembly which significantly reduces clogging.

Long-life means real savings
Mesurflo Controls will operate efficiently for many years which means little or no down time and loss of productivity.

Diaphragm area is proportioned to pressure
Each Mesurflo is designed specifically to deliver the prescribed flow rate.

Mesurflo can be used for large flow rates.
Mesurflo controls are placed parallel in a single housing providing the specified flow rate even on large flow rates.
Unit of Measure


Pipe Size

N/A 1 in

Flow Rate

N/A 19 gpm

Pressure Differential Range

N/A 15 to 150 psid

Temperature Range

N/A 32 to 160 ºF


N/A ± 10 %

Overall Length

N/A 3-19/32 in

Diameter Across Corners

N/A 2-7/8 in

Typical Applications


  • Irrigation and Crop Dusting
  • Swimming Pool Filters
  • Industrial Equipment Cooling Systems
  • Electronic Power Tube Cooling Systems
  • Welding Equipment Cooling Systems
  • Pump, Compressor, & Vacuum Equipment Cooling Systems
  • Industrial Time Fill & Meter Equipment
  • Tankless Heater & Heat Transfer Systems
  • Water Stream & Water Spray Control
  • Film Process & Rinse Systems
  • Industrial & Medical Stills
  • Water Conservation Applications
  • Water Table Drawdown
  • Water Source Heat Pumps
  • Pump & Dump Systems