Oval Gear Flow Meter
Oval gear meters are traditional, mechanical, positive displacement (PD) flow meters, first invented more than 50 years ago by OVAL Corporation of Japan and now widely used for flow metering applications. A very precisely adjusted gear pair within the casing forms the measuring element. The in flowing medium causes the gear pair to rotate. The rotary motion is scanned by contactless sensors. Since each individual tooth generates a pulse, this results in a very high resolution.
Consequently, even the smallest volumes can be measured or dosed precisely. The measurement unit contains two pick-offs that are circumferentially offset by ? of a tooth pitch to generate a 2 channel flow-proportional frequency signal. Suitable processing of the signal provides an greater resolution and the option to identify the flow direction. Basically, the measurement accuracy increases with increase in viscosity of the media.
- Traditional proven flow technology
- Simple to install
- No straight pipe runs are required so flow meters can be installed in restricted areas
- S.S 304 & S.S.316 MOC Available
- Pulse output.
| Power | 5 ~24 VDC | |
| Output | NPN Pulse | |
| Media | Diesel / Oil | |
| Accuracy | +/- 0.5 % of reading | |
| Operating Temperature | -20 ~ 80’C | |
| Max. Pressure | 50 Bar Aluminum Body / 150 Bar S.S. Body. | |
| Line Size | 3 ~ 80 mm | |
| Flow Range | 3 mm : 0.5 ~ 35 LPH | 25 mm : 500 ~ 4000 LPH |
| 6 mm : 5 ~ 150 LPH | 40 mm : 1000 ~ 10000 LPH | |
| 9 mm : 15 ~ 300 LPH | 50 mm : 5000 ~ 20000 LPH | |
| 13 mm : 100 ~ 1500 LPH | 80 mm : 10000 ~ 100000 LPH | |
| 19 mm : 200 ~ 2200 LPH | ||
| Flow Controller | AFT 96 / AIFT22 | |
| Process Connections | Thread in BSP / NPT | |
| Electronics | Direct Mount or Remote Mount | |
The oval gear flow meter is designed primarily for use with higher-viscosity fluids, which has led to applications such as the flow metering of oils, syrups, and fuels.