Reflux Variable Area Flow Transmitter

Product Overview

Reflux Flow Transmitters combine variable area flowmeter and position sensing technology to provide both a direct reading and 4 to 20 mA transmission output in a single unit. This unique approach makes the Reflux Flowmeter an ideal choice for integration into customer equipment.


  • Approvals: EEx ia IIC T6 ATEX II 2GD T70’C IP65
  • Gas Ranges: 0.6 L/min to 600 L/min AIR (or equivalent)
  • Liquid Ranges: 6 cc to 40 L/min H20 (or equivalent)
  • Accuracy: ± 2% FSD
  • Repeatability: better than ±0.5% of flow
  • Standard Conditions: 1013 mbarg @ 20ºC
  • Pressure: 20 barg max (non shock)
  • Pressure Drop: Gases 6 mbar max, Liquids 25 mbar max
  • Temperature: -15 to +60ºC
  • Process connections: ⅜˝, ½˝, 1˝ BSP female
  • Power: 8 to 30Vdc
  • Output: 2 Wire 4 to 20mA loop
  • Materials of Construction: 316 stainless steel process connections
    Tube: Borosilicate Glass
    Float: Stainless Steel, Anodised Aluminium, Acetal or PEEK
    Seals: Viton or Nitrile on sizes 23 and 30
    Enclosure: Powder coated aluminium c/w polycarbonate window


  • Alarms: Infra-red / Power Supplies
  • Customisation: Special scales for non standard conditions and medium
  • Calibration / Certification: Options available
Reflux Variable Area Flow Transmitter