ALTAIR V4 DN25/32/40

ALTAIR V4 DN25/32/40


ALTAIR V4 represents the latest generation of volumetric meters developed within the framework of the MID and European standards to meet field requirements.
ALTAIR V4 is a particularly compact and robust meter, adapting to the most restrictive environments and compatible with varying water qualities.
Modular, ALTAIR V4 may be fitted at any time with an IZAR clip-on module converting it into a communicating meter, ready for mobile or fixed network (radio/wired) reading.

  • DN25/32/40
  • Q3=6.3 m3/h (DN25/32) and Q3=16 m3/h (DN40)
  • MID approval up to R=800 (DN25/32) and R=1,000 (DN40)
  • Starting flow rate at 1 l/h (DN25/32) and 4 l/h (DN40)
  • Brass body
  • Glass-copper register
  • Compact
  • Installation in any position
  • Metrological data
    Nominal diameterDNmm253240
    Nominal flow rateQ3m3/h6.36.316
    R standard*Q3/Q1160160160
    Starting flow ratel/h114
    Minimum flow rate*Q1l/h39.37539.375100
    Transition flow rate*Q2l/h6363160
    Maximum flow rateQ4m³/h7.8757.87520
    Head loss at Q3bar0.6160.6110.630
    Head loss at Q4bar0.9620.9550.984
    Kvs (deltaP=Q²/Kvs²)8.038.0620.16
    * Other values on request.
  • Approval
    MID approvalLNE-6250 | Type A2
    StandardsEN 14154 | ISO 4064 | OIML R49
    Sanitary conformityACS | Belgaqua | KTW | WRAS
  • Temperatures and pressure
    Water temperature°C0.1 ... +50
    Ambient operating temperature°C+1 ... +55
    Storage temperature°C-10 ... +55
    Nominal pressurePNbar16
  • Dimensions
    Front viewTop view
    Nominal diameterDNmm253240
    Thread connectionsGinch1”1/41"1/22"
    * Other values on request.
  • Precision curve

    This technology does not require straight length.

  • Options

    - Non-return valve
    - Pair of connectors