The Woltman-type turbine water meter with a parallel impeller axis is used wherever large flows with a relatively constant flow profile need to be controlled. They are specially designed for urban services, municipal water supply and industry, and thanks to their robust design, they can not only work with a large measuring range, but also have a high and stable measuring accuracy over time.
The hydrodynamic optimized turbine operates reliably even at low flows and has sufficient "spare" capacity to accommodate flow limits. First of all, the long service life of the meters is guaranteed by the reinforced bearings with a low friction level. The meters can be retrofitted at any time with impulse, optical and inductive NAMUR sensors - without damaging the control seal. Thus, the sensor can be integrated into an existing data transmission system in a simple way with many different possibilities.
Pulse weight for Woltman meters
DN 40 - DN 125 standard 100 l / imp.
DN 150 - DN 300 standard 1.000 l / imp.
DN 400 - DN 500 standard 10.000 l / imp.
| Principle of operation | Woltman counter with parallel impeller axis |
|---|---|
| Face-to-face length without fittings | 200 mm 225 mm 250 mm 300 mm 350 mm 450 mm 500 mm 600 mm 800 mm |
| Body material | cast iron |
| Counting mechanism | dry ship |
| Nominal flow Qn | Qn 15 Qn 25 Qn 40 Qn 60 Qn 100 Qn 150 Qn 250 Qn 400 Qn 600 Qn 1000 Qn 1500 |
| Nominal diameter DN (mm) | Ду 40 DN 50 DN 65 DN 80 DN 100 DN 125 DN 150 DN 200 DN 250 DN 300 DN 400 DN 500 |
| Water temperature | cold water until 30° C cold water until 50° C |
| Counter readings | in cubic meters (м³) |
| Metrological class at horizon. position (мах.) | B |
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