Oval Gear Flow meter
Oval Gear Flow Meter
Oval Gear Flow meters are the instruments, invented based on the positive displacement principle considering accuracy and precision as the core of their performance. These volumetric flow meters are best used in industries like oil and petroleum, chemicals, pharmaceuticals, general manufacturing industries where high level of accuracy and repeatability are required.
Operation Principal
The measuring principle includes two high precision toothed oval gears ( rotors), which are driven by the flow of the media and “mesh” together. In the presence of flow, precise defined volumes of fluid are swept through the meter for each rotor rotation. As the flow increases, so does the rotational speed of the rotors. The number of rotor gear rotations is a measure of the amount of fluid that has passed through the meter – each rotation is detected by a sensor and the volume is calculated using a conversion factor ( K factor ). A key distinction of positive displacement flow meters is they offer direct measurement of the volumetric flow rate.
Benefits
- High Resolution Digital Output
- Digital or Analogue Outputs available
- Wide Range ability
- Less slippage
- Smoother and quieter
- Bi-directional flow capability
- Low Mass oval gears facilitate fast response
- time to step changes in flow rate
Areas of Applications
For all viscous, non-abrasive clean liquids like
- Petroleum Products
- Oil Products
- Chemicals
- Grease
- Fuels
- Pastes, etc.
Product Performance & Specification
| Model | FS04 | FS06 | FS08 | FS12 | FS20 | FS25 | FS40L | FS50 | FS80 |
|---|---|---|---|---|---|---|---|---|---|
| Capacity Group | Low | Medium | High | ||||||
| Normal Size ( Inch) | 1/4" | 1/4" | 3/8" | 1/2" | 3/4" | 1" | 1.5" | 2" | 3" |
| Flow Range (LPH) | 0.7 to 50 | 5 to 150 | 20 to 300 | 50 to 1200 | 150 to 2000 | 200 to 4000 | 500 to 10000 | 600 to 20000 | 1000 to 50000 |
| Accuracy | +/- 1 % of Reading +/- 0.5% of Reading (10:1 turndown) | ||||||||
| Repeatibility | Typically 0.03% of reading | ||||||||
| Temperature Range | 200C to 850 C (for Aluminium body) -200 C to 1200 C (for SS. Body) refer factory for lower and higher temperature ranges | ||||||||
| Maximum Pressure (threaded meters) in bar | |||||||||
| Aluminium Meters | 25 bar | ||||||||
| SS 316 meters | 200 bar | ||||||||
| High Pressure Model | Refer Factory | ||||||||
| Electrical for pulse meter | |||||||||
| Output | Hall Effect NPN/PNP Pulse | ||||||||
| Pulse / Litre | 5635 | 6000 | 1700 | 860 | 260 | 95 | 35 | 12 | 6 |
| Optional outputs | 4-20 mA, 485 Modbus communication | ||||||||
| Physical | |||||||||
| Protection class | IP66/67 | ||||||||
| Noise generation | 75 db | ||||||||
| Dimensions | Refer datasheet | ||||||||