variable-area flow meter / for water / for corrosive fluids / rugged
L Aalborg Instruments



  • Technology:


  • Fluid:

    for water, for corrosive fluids

  • Other characteristics:

    rugged, plastic tube, in-line, top-mounted, aluminum, PTFE, PFA

  • Process pressure:

    Max.: 100 psi

    Min.: 0 psi (0 psi)

  • Process temperature:

    Max.: 121 °C (250 °F)

    Min.: 0 °C (32 °F)

  • Volumetric flow rate:

    Max.: 45 l/min (11.9 us gal/min)

    Min.: 0 l/min (0 us gal/min)


Model L PTFE-PFA flow meters are ideally used for low-to-medium flow range measurements. The design is such that they are made of chemically inert wetted components made from PFA PTFE and PCTE. There is a rigid frame and a non-fluid contacting structure made from PFA-clad aluminum and KYNAR®. The flowmeters allow for overlapping flow ranges for water in the range 5 mLPM to 45 LPM. Each meter is individually tested for leak. The rugged flowmeter makes use of principles of traditional rotameter flow technology, With this, it is possible to provide solutions for low to medium flow range measurements of highly corrosive or ultra-pure liquids. The meters present a rare combination of a strong mechanical frame and chemically inert wetted parts. They are corrosion-resistant too.