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Woltman volumetric flow sensor WP

Robust WPH split volumetric flow sensor for municipal utilities companies, municipal water suppliers and industry.

The cubic capacity and connection dimensions of the ZENNER Woltman WPH volumetric flow sensor are designed in conformity with DIN ISO 4064.

The WPH is specially designed for horizontal or vertical installation and is characterised by a high load capacity, low pressure loss and a short face-to-face length. It is ideal for installation in heating circuits with an almost constant volumetric flow-rate (secondary heating circuit). A high-pressure version (PN 25 / PN 40) are also available on request.

Product images

Woltman-volumetric flow sensor WP
Woltman-volumetric flow sensor WPWoltman-volumetric flow sensor WP


Woltman volumetric flow sensor WP


  • Reinforced bearing design
  • High measurement stability
  • Wide load range
  • Reliable operating range to 120°C
  • Suitable for multidata WR3 heat calculator

Product options

Measuring Principle
  • Woltman parallel
  • Dry Dial
Nominal Diameter DN (mm)
  • DN 50
  • DN 80
  • DN 100
  • DN 125
  • DN 150
  • DN 200
Length without connectors
  • 200 mm
  • 225 mm
  • 250 mm
  • 300 mm
  • 350 mm
  • Hot Water up to 120° C
Housing Material
  • Cast Iron (GGG)
Operating pressure (max.)
  • MAP 25/40 auf Anfrage
Nominal Flow qp (Heat Meters)
  • qp = 15
  • qp = 25
  • qp = 40
  • qp = 60
  • qp = 100
  • qp = 150
  • qp = 250
Specified Units on Display
  • Cubic Meters (m³)


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