Near Intersection of I-35 & I-90 Southern Mn. | I have seen one once or twice many years ago. They look much different than the more common flow meters. Raven's website shows a range of .1 -5 GPM. They were expensive. The meter cal was a large number. Other than that I can't help much. There doesn't seem to be much information and no pictures on their website although a chart indicates that they are still available. |
Raven RFM 5 Flow Meter
