Go to content Go to main menu

Piston Type Water Meter RNK-L-RP-N

The RNK-L-RP-N is a Volumetric Piston-Type meter for cold potable water

The new series of our volumetric piston meters with protected dial are an improvement of the classical RNK. Our developers succeeded in combining the millionfold proved and high-precise measuring insert with a body of pressure-tight plastics, suitable for use with potable water. The result is the innovative RNK-L-RP-N.

A very low starting flow and reliable performance even with aggressive or dezincification water qualities are its main features. The protected roller counter is reliably readable even under demanding climatic conditions.

The construction principle of the[nbsp]RNK-L-RP-N with direct transmission from the measuring chamber to the counter ensures by standard protection against magnetic or other manipulation attempts or interference.

RNK-L-RP-N[nbsp]is equipped with pulser (Reed) for remote readout.

Show more

Product images

Piston Type Water Meter RNK-L-RP-N
Piston Type Water Meter RNK-L-RP-NPiston Type Water Meter RNK-L-RP-N


Piston Type Water Meter RNK-L-RP-N


  • Rugged, light and intelligently conceived
  • Register with protected encapsulated rollers
  • Approx. 50% lighter than meters with brass body
  • Housing made from high-quality UV-resistant polymer composite
  • Working temperature 30°C
  • Operating pressure PN 16
  • Display range 0,02 l to 9999 m³
  • Proven accuracy in any installation position
  • Optional with integrated tamperproof check valve
  • Retrofitable with pulser 0,5 l/pulse
  • Approved in accordance with MID

Product options

AMR Technologies
  • Reed Pulser
Housing Material
  • Plastic
Length without connectors
  • 115 mm
  • 130 mm
  • 165 mm
  • 190 mm
Measuring Principle
  • Positive Displacement Meters
Metrological Class horizontal (max.)
  • R 160
Nominal Diameter (inch)
  • 1/2 "
  • 3/4 "
Nominal Diameter DN (mm)
  • DN 15
  • DN 20
Nominal Flow Q3 (≈ Qn)
  • Q3=1,6 (≈ Qn 1)
  • Q3=2,5 (≈ Qn 1,5)
  • Q3=4 (≈ Qn 2,5)
Operating pressure (max.)
  • MAP 16
  • Wet Dial with protected Rollers
Specified Units on Display
  • Cubic Meters (m³)
  • Cold Water up to 30° C


You can download a PDF Viewer from acrobat.adobe.com to view PDF files.

Other ZENNER products

Discover other interesting products in our product range.

Product imagePositive Displacement meter RTKD-M and RTKD-M-CCPositive Displacement meter RTKD-M and RTKD-M-CC
Positive Displacement meter RTKD-M and RTKD-M-CC
Positive Displacement Meter RTKD is equipped with dry dial and with the new d-register.RTKD-M is equipped with 8-digit rollers register and modulator disc for non-reactive scanning for M-bus and radio via ...
Product imagePiston type water meter RNK-RP-NPiston type water meter RNK-RP-N
Piston type water meter RNK-RP-N
Volumetric Rotary Piston Meter RNK-RP-N is a water meter for cold potable water with protected dial and brass body. RNK-RP-N is retrofitable with pulser (Reed) for remote readout systems.