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Compound water meter WPVR

Compound water meter with piston meter as secondary meter for use in drinking water distribution and industrial applications

The WPVR was designed to record fluctuating flows, for use in drinking water distribution and industrial
applications. The main meter is based on the proven Woltman parallel technology.

As a secondary meter a rotary piston meter is used, with which even small flows can be reliably recorded.
All materials, which are used in the drinking water section, comply with the required standards, guidelines and the current German drinking water approval (Other country-specific drinking water approvals on

Product images

Compound water meter WPVR
Compound water meter WPVRCompound water meter WPVR


Compound water meter WPVR

Performance characteristics in overview

  • Compound water meter with rotary piston meter as secondary meter
  • Available sizes DN 50 until DN 100
  • Exchangeable MID compliant measuring insert (consisting of main meter, secondary meter and changeover valve)
  • Highest precision and reliability even in case of low flow rates
  • Both registers (main and secondary register) prepared for remote meter reading
  • No straight inlet or outlet needed (U0/D0) according to OIML R49 and DIN EN ISO 4064
  • For horizontal and vertical installation position
  • Main and secondary meter fully submersible – protection class IP68


  • For measuring of large and small flow rates
  • For consumption measuring of drinking water and unpolluted service water up to 50 °C

AMR options

  • Can be combined with stationary GSM system
  • Serially equipped with communication interface for:
    • Electronic pulser
    • Wired M-Bus
    • Wireless M-Bus radio technology
    • Radio via LPWAN (LoRa®)

Product options

Measuring Principle
  • Positive Displacement Meters
  • Woltman Compound Meters
  • Dry Dial protection class IP 68 ("Copper Can")
Housing Material
  • Cast Iron (GGG)
Nominal Flow Q3 (≈ Qn)
  • Q3=25 (≈ Qn 15)
  • Q3=40 (≈ Qn 25)
  • Q3=63 (≈ Qn 40)
  • Q3=100 (≈ Qn 60)
Nominal Diameter DN (mm)
  • DN 50
  • DN 80
  • DN 100
Length without connectors
  • 270 mm
  • 300 mm
  • 360 mm
Metrological Class horizontal (max.)
  • R 6300
Communication Technologies
  • Combined M-Bus and pulse module
  • Radio via LoRaWAN®
  • Radio via wireless M-Bus
  • Electronic Pulser
  • M-Bus
  • Cold water up to 50 °C
Specified Units on Display
  • Cubic Meters (m³)


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