variable-area flow meter / for liquids / for gas / direct-reading



  • Technology:


  • Fluid:

    for liquids, for gas

  • Other characteristics:

    direct-reading, plastic tube, in-line, top-mounted, stainless steel, plastic, PVC, polypropylene

  • Applications:

    for water treatment, industrial

  • Process pressure:

    Max.: 15 bar (217.56 psi)

    Min.: 0 bar (0 psi)

  • Process temperature:

    Max.: 60 °C (140 °F)

    Min.: 0 °C (32 °F)

  • Volumetric flow rate:

    Max.: 50,000 l/h (1,765.7 us gal/h)

    Min.: 4 l/h (1.1 us gal/h)


Variable area flowmeters for liquids and gases, made of transparent technical plastics.

Light weight, simple installation and excellent readability with low cost.
Application areas

Industrial process control in water treatment, osmosis, cooling and heating circuits, gases control. Available also for chemical, petrochemical, paper, pharmaceutical industry ... due to their high chemical resistance.
Technical specifications

Measuring ranges:
4 l/h … 50 m3/h H2O at 20ºC
120 Nl/h … 1500 Nm3/h air at 1 bar abs
Other scales on request

PT/PS models +-4% f.s.
PTM/PSM models +-6% f.s.

DIN DN15 … DN80 flanges
Threaded fittings from ½” to 3” BSP

PVC solvent weld socket fittings
SS fittings for welding
Others on request

Flow tube: Trogamid T, Polysulfone and NAS
Wetted parts/fittings: PVC, EN 1.4404 (SS 316L), Steel, PP
Other on request.

Local indication

1 or 2 adjustable reed switches
4-20 mA transmitter (max. resolution 18 points)
HART ™ protocol, Profibus, Fieldbus on request