https://flowmeterdirectory.com/flow-meter-viscous-liquid-flowmeters-sg-241-helical-flow-meter/
241 Helical Flow Meter - Flow Meter Suppliers
Jan 11, 2017 - Flow range: 100 cc/min to 189 liters/min (0 to 50 gpm) Accuracy (at 30cp): ± 0.2% of reading over 50:1 range Maximum Operating Pressure: 35,105 or 240 bar...
helical flowmetersuppliers
https://www.rshudgins.com/Category/A3zqZ/Helical-Gear-Flow-Meters
Helical Gear Flow Meters | Robert S. Hudgins Company
helical gearflow metersroberthudginscompany