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Woltman volumetric flow sensor WS

Flow sensor for flow rates up to qp 150 m³/h

The flow sensors Woltman WS serve to record the heat carrier volume (water) in closed circulation systems in
heating systems. The recorded volume is both displayed on a turnable roller register and issued in the
form of volume pulses.

The WS design type was construction for installation in horizontal pipes. This meter type is particularly suited to greatly varying flow volume in heating circuits with variable volume flow. Its particular advantage lies in the greatly extended measuring range towards smaller flow volume.

Product images

Woltman Volumetric Flow Sensor WS
Woltman Volumetric Flow Sensor WSWoltman volumetric flow sensor WS


Woltman volumetric flow sensor WS


  • Reinforced mounting with ring sapphire and hardened metal
  • High measuring stability with conformity assessment in metrological class 2
  • Permanent loads of up to 120 °C
  • Can be combined with the ZENNER multidata WR3 or other standard energy calculators

Product options

Measuring Principle
  • Woltman vertical
  • Dry Dial
Nominal Diameter DN (mm)
  • DN 50
  • DN 80
  • DN 100
  • DN 150
Length without connectors
  • 270 mm
  • 300 mm
  • 360 mm
  • 500 mm
  • Hot Water up to 120° C
Housing Material
  • Cast Iron (GGG)
Metrological Class horizontal (max.)
  • B
Nominal Flow qp (Heat Meters)
  • qp = 15
  • qp = 25
  • qp = 40
  • qp = 60
  • qp = 150
Specified Units on Display
  • Cubic Meters (m³)


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