Woltman Water Meter With Paralele Turbine Shaf
Woltman parallel type meters are always used when high flow rates with a relative constant flow rate profile are to be measured. Trought its robust construction they not only are capable of covering a large measuring range, but the measuring accuracy is also long-term.
They hydrodynamic optimize turbine is reliabli operated already at small flow rates “upward” is has enough power to reliably measure flow rate peaks. Especially strong bearing with low friction gurntee a long life of the meter.
Reed sensors, optical and invoice – NAMUR sensors can always be retrofitted without the damaging calibration eal. Then the meter can be integrated with data communication or automation or automatiin and control system in a simple and flexible way.
Performance Cracteristics in Overview :
- Low starting flow, high overload security
- Wide measuring range
- Removable measuring insert
- Low head loss
- Hidraulic bearing reliece for long-term measuring stability
- Retrofittable with acctive and passive pulsers
- Metal Protective cover serially, plastics optional
- Eacuated counter protected from condensation
- Dry dial counter with large number rollers simplities the readability
- For cold water up 30°C, with security up to 50°C
- For horizontal, vertical installation position
- High Pressure
Technical Data :
| Nominal Diameter | DN 200 |
| Nominal Flow (Qn) | 250 m3/hour |
| Overal Length (L) | 350mm |
| Metrological class | B |
| Maximum Flow (short-term) Qmax | 650m3/hour |
| Maximum Flow (constant) | 325 m3/hour |
| Transitional | 20 m3/hour |
| Minimum Flow (Qmin) | 6.5 m3/hour |
| Flow Rate with 0.1 bar head lose | 650 m3/hour |
| Head lost at qmax | 0.05 bar |
| Display range | Min 2 l/Max 9.999.999 m3 |
| Maximum temperature | 50° |
| Opereting pressure, max | 16 bar |
| Height (H) | 375 mm |
| Flange diameter (D) | 340 mm |