AQUARIUS is a single jet water meter designed for measuring consumption of cold or hot water in housing blocks.
Developed within the framework of the MID, AQUARIUS complies with the European regulations and holds a sanitary conformity certificate.
AQUARIUS is modular and can be fitted at any time with an IZAR clip-on module, converting it into a communicating meter ready for mobile or fixed (radio/wired) network reading.


  • DN15
  • Q3=2.5m3/h
  • MID approval up to R=100H and R=40V
  • Starting flow rate: 12 l/h
  • Brass and composite body
  • Modular
  • Metrological data
    Nominal diameterDNmm151515
    Nominal flowrateQ3m³/h2.52.52.5
    R standard*(Q3/Q1)80H-40V80H-40V80H-40V
    Starting flowrate - horizontall/h121212
    Minimum flowrate - horizontalQ1l/h313131
    Transition flowrate - horizontalQ2l/h505050
    Minimum flowrate - verticalQ1l/h62.562.562.5
    Transition flowrate - verticalQ2l/h100100100
    Maximum flowrateQ4m³/h3.1253.1253.125
    Head loss at Q3bar0.560.560.56
    Head loss at Q4bar0.890.890.89
    Kvs (deltaP=Q²/Kvs²)3.343.343.34
    * other values on request - H=horizontal installation position / V=vertical installation position
  • Approval
    MID approvalLNE-6904 B1 type | LNE-30014 B2 type
    StandardsEN 14154 | ISO 4064 | OIML R49
    Sanitary conformityACS

    Information pursuant to Article 33 (1) of Regulation (EC) No 1907/2006 of the European Parliament and of the Council of 18 December 2006:
    This product series contains articles with the following substances in a concentration of more than 0.1% weight by weight (w/w):
    - Lead (CAS no.: 7439-92-1)

  • Temperature and pressure
    Water temperature*°C+0.1 ... +50 / +0.1 ... +90
    Ambient operating temperature°C+1 ... +55
    Storage temperature°C-10 ... +55
    Nominal pressurebar16
    * composite version : only +0.1 ... +50°C
  • Dimensions
    Nominal diameterDNmm151515
    Total heightHmm787272
    Thread connectionsGinch3/4"3/4" 3/4" (*)
    * other values on request
  • Precision curve

    The technology doesn't require straight length.

  • Option

    - Glass-metal register

You are currently using an outdated Internet browser, which is no longer supported for technical reasons. To use the Diehl website right, please use a modern browser in the latest version, such as Edge, Chrome, Firefox or Safari.


We would like to use Google Analytics to optimise the design of our website. Through this, Google collects data which is aggregated and made available to us as a statistical overview. By clicking "Agree", you consent to tracking by Google Analytics. This consent is voluntary and can be revoked at any time. If you click "Decline", no tracking will take place. For more information, please see our privacy policy.