Bulk water meter Woltman

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 mm
Housing 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 1500
Nominal 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 500
Temperature	Cold Water up to 30° C Safe up to 50° C
Specified Units on Display	Cubik Meters (m³)
AMR Technologies	Reed Pulser Opto Sensor
Metrological Class horizontal (max.)	B

Downloads

Catalog Bulk Water Meters
Installation Instruction Reed Pulser
Installation Instruction Opto sensor