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The WPH-N Woltman parallel bulk water meter has been specially developed for municipal utilities companies, water supply companies and industry
The WPH-N water meter by ZENNER is a Woltman parallel type meter with a parallel turbine shaft, for use in the cold or hot water area.
Bulk water meters of the Woltman parallel type are always employed when high flows with a relatively constant flow profile are to be recorded. These are specially designed for municipal utilities companies, municipal water supply and industry and, thanks to their robust construction, can not only cover a large measurement range, but are very stable over the long term in terms of their measurement accuracy.
The hydro-dynamically optimised turbine is reliably activated, even where the flow is minimal, and has a large enough "upwards" power reserve even to be able to record flow peaks reliably. Specially reinforced low-friction bearings guarantee the water meters' long service life. Reed contact, optical and NAMUR induction encoders can be retrofitted at any time without damaging the calibration seal. Hence, the water meter can be easily and flexibly integrated into existing data transmission or guidance systems.
Pulser values 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.
(* other values on request)
Performance Characteristics
- Low start
- Good overload protection
- Large measurement range
- Removable measurement insert
- Low loss of pressure
- Hydraulic bearing pressure discharge for durable measurement stability
- Retrofittable with active and passive pulsers
- Protective metal cover as standard, plastic optional
- Evacuated counter, protected from condensation
- Dry dial counter with large indicator wheels makes reading easier
- Water meter for cold water to 30°C, accurate to 50°C
- Water meter for horizontal and vertical installation positions
- High-pressure version PN 25/40 on request
- For municipal utilities companies, municipal water supply and industry
Product Features
Measuring Principle Woltman parallel Length without connectors 200 mm
225 mm
250 mm
300 mm
350 mm
450 mm
500 mm
600 mm
800 mmHousing Material Cast Iron Register Dry Dial Nominal Flow Qn Qn 15
Qn 25
Qn 40
Qn 60
Qn 100
Qn 150
Qn 250
Qn 400
Qn 600
Qn 1000
Qn 1500Nominal Diameter DN (mm) DN 40
DN 50
DN 65
DN 80
DN 100
DN 125
DN 150
DN 200
DN 250
DN 300
DN 400
DN 500Temperature Cold Water up to 30° C
Safe up to 50° CSpecified Units on Display Cubik Meters (m³) AMR Technologies Reed Pulser
Opto SensorMetrological Class horizontal (max.) B
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