Wolman Water Meter With Parallel Turbine Shaff
Woltman parallel type meter are always used when high flow rates with a relative constant flow rate profile are to be measured. through it its robust contruction they not only are capable of covering a large measuring range, but the measuring accuracy is also long-term stable.
They hydrodynamic optimize turbine is reliabli operated at small flow rates and” upwards” is has enough power ereserve to reliably measure flow rte peaks. Especially strong bearing with friction guarantee a long life of the meter.
Reed sensos, optical and indctive – NAMUR sensors can always be retrofitted without the damaging calobration eal. then the meter can be integrated with data communication or automation or automatiin and control system in a simple and flexible way.
Performance characteristics in Overview :
- Low starting flow, high overload security
- Wide measuring insert
- Low head loss
- Hidraulic bearing relieve for long-term measuring stability
- Retrofittable with active and passive pulsers
- Metal Protective cover serially, plastics optional
- Eucuated counter protected from condensation
- Dry dial counter with large number rollers simplities the readability
- For cold water up to 30°C, with security up to 50°C
- For horizontal, vertical installation positions
- High Pressure
Technical Data :
| Nominal Diameter | DN 65 |
| Nominal Flow (Qn) | 25m3/hour |
| Overal Length (L) | 220 mm |
| Metrological class | B |
| Maximum Flow (short-term) Q max | 120m3/hour |
| Maximum Flow (constant) | 60m3/hour |
| Maximum Flow (Qt) | 2 m3/hour |
| Maximum Flow (Qmin) | 0.45m3/hour |
| Head lost at Qmax | 0.1 bar |
| Display range | Min 2 l/ Max 9.999.999m3 |
| Maximum temperature | 50°C |
| Operating pressure, max | 16 Bar |
| Height (H) | 208 mm |
| Flange diameter ( D ) | 185 mm |