Woltman Water Meter With Parallel Turbine Shaf
Woltman parallel type meters are always used when high flow rates with a relative constant flow rate profile are to be measured. Through its robust construction 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 already at small flow rates and “upwards” is has enough power reserve to reliably measure flow rate peaks. Especially strong bearings with low friction guarantee a long life of the meter.
Reed sensors, optical and indctive – NAMUR sensors can always be retrofitted without the damaging calibration eal. Then the meter can be integrated with data communication or automation or automatin and control systems in a simple and flexible way.
Performance Characteristics in Overview :
- Low starting flow, high overload security
- Wide measuring range
- Removable measuring insert
- Low head loss
- Hidraulic bearing relieve for lomg-term measuring stability
- Retrofittable with active nd 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 to 30°C , with security up to 50°C
- For horizontal, vertical installation positions
- High Pressure
Technical Data :
- Nominal Diameter : DN 150 (150 mm)
- Nominal Flow (Qn) : 150 m³/hour
- Overal Length (L) : 300 mm
- Metrological class : B
- Maximum Flow (short-term) Qmax : 350 m³/hour
- Maximum Flow (constant) : 250 m³/hour
- Transitional Flow (Qt) : 12 m³/hour
- Minimum Flow (Qmin) : 3.5 m³/hour
- Flow Rate with 0.1 bar head lose : 200 m³/hour
- Head lost at Qmax : 0.2 bar
- Display range : Min 20 l/ Max 9.999.999 m³
- Maximum temperature : 50°C
- Operating pressure, max : 16 bar
- Height (H) : 305 mm
- Flange diameter (D) : 285 mm