Oval Gear Positive Displacement Meters


The OG series of oval gear flowmeters work by using the very low differential pressure generated across the body to drive a pair of oval gears. This rotation can be detected by a variety of means to give either a TTL or contact closure pulse output.

The OG series is available in a choice of materials and pressure ratings to suit most applications and as with all positive displacement flowmeters, the performance improves with increasing viscosity achieving an accuracy of ± 0.1% of reading.


Measuring Principle: Oval Gear
Sizes: ¼“ to 2“ G
Flow ranges: 0.1 to 500 LPM (0.026 to 133 GPM)
Repeatability: ±0.05%
Accuracy: Up to ±0.1%