Due to their continuous ongoing development, the highly modular OMG series covers a broad range of applications. This series is therefore particularly suitable for manifold applications, such as mechanical engineering, chemical engineering and marine.
The flow meters OMG series also combines robustness with highest precision, characteristics for which KRAL flow meters are well-known worldwide. Due to the screw pump principle, all OMG series devices are very smooth-running and fast, and can follow quick, pulsation-related changes in flow rates. Due to their extremely robust construction, the OMG series provides optimal protection against external influences, such as system vibrations and mechanical stresses in harsh environments.
| Technical data | OMG-13 | OMG-20 | OMG-32 | OMG-52 | OMG-68 | OMG-100 | OMG-140 | |
|---|---|---|---|---|---|---|---|---|
| Nominal diameter | DN [mm] | 15 | 20 | 25/32 | 40 | 50 | 100 | 150 |
| DN [inch] | 1/2 | 3/4 | 1 | 1 1/2 | 2 | 4 | 6 | |
| Total length with DIN flange | [mm] | 145 | 185 | 255/265 | 285 | 340 | 460 | 610 |
| Weight with DIN flange | [Kg] | 6 | 6 | 13/15 | 21 | 31 | 77 | 190 |
| Flow rate I/h | Qmax | 900 | 2,700 | 9,000 | 31,500 | 63,000 | 180,000 | 450,000 |
| Qnom | 600 | 1,800 | 6,000 | 21,000 | 42,000 | 120,000 | 300,000 | |
| Qmin | 6 | 18 | 60 | 210 | 420 | 1,200 | 3,000 | |
| Flow rate I/min | Qmax | 15 | 45 | 150 | 525 | 1,050 | 3,000 | 7,500 |
| Qnom | 10 | 30 | 100 | 350 | 700 | 2,000 | 5,000 | |
| Qnom | 0.1 | 0.3 | 1.0 | 3.5 | 7.0 | 20 | 50 | |
| Max. pressure | [bar] | 250 | 250 | 250 | 160 | 100 | 40 | 40 |
| Temperature | [°C] | -20 to +200 | -20 to +200 | -20 to +200 | -20 to +200 | -20 to +200 | -20 to +200 | -20 to +200 |
| Viscosity | [mm²/s] | 1 to 1×106 | 1 to 1×106 | 1 to 1×106 | 1 to 1×106 | 1 to 1×106 | 1 to 1×106 | 1 to 1×106 |
| Precision | measurement of value | ±0.1 % | ±0.1 % | ±0.1 % | ±0.1 % | ±0.1 % | ±0.1 % | ±0.1 % |
| Repeatability | ±0.01 % | ±0.01 % | ±0.01 % | ±0.01 % | ±0.01 % | ±0.01 % | ±0.01 % | |
| K-factor | K1 [P/I] | 1,216 | 640 | 234 | 71.0 | 39.8 | 16.8 | 8.8 |
| K2 [P/I] | 2,432 | 1,280 | 468 | 142 | 79.6 | 33.6 | 17.7 | |
| K3 [P/I] | 7,296 | 2,560 | 1,014 | 302 | 167 | 57.6 | 22.1 | |
| K4 [P/I] | 7,296 | 2,560 | 1,014 | 302 | 167 | 87.6 | 45.1 | |
| Frequency | f1 at Qnom [Hz] | 203 | 320 | 390 | 414 | 464 | 560 | 738 |
| f2 at Qnom [Hz] | 405 | 640 | 780 | 828 | 929 | 1,120 | 1,475 | |
| f3 at Qnom [Hz] | 1,216 | 1,280 | 1,690 | 1,760 | 1,949 | 1,920 | 1,842 | |
| f4 at Qnom [Hz] | 1,216 | 1,280 | 1,690 | 1,762 | 1,948 | 2,920 | 3,758 | |
