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Type FMO 40 + 50

Features and benefits:

  • for flowrates of 10-350 l/min
  • with electronic LCD unit
  • oval rotor type
  • oval rotors in version for low or high viscosity products
  • very high measurement accuracy ± 0,5 %
  • low pressure drop
  • horizontal or vertical use
  • display in litres, Imperial gallons, US gallons or kilograms
  • integral batch controller up to 9.999 in conjunction with an interface amplifier
  • explosion-proof according to Directive 94/9/EC-ATEX 100 - EC-Type Examination Certificate No. PTB 03 ATEX 2014
  • jet-proof to IP 54
  • inlet/outlet connection: flange DN 40 on FMO 40 resp. DN 50 on FMO 50

The liquid meter is available in:

  • Meter body: aluminium alloy (AL), stainless steel 316 L (S)
  • Oval rotors: PPS (P), stainless steel 316 L (S)
  • Shaft: stainless steel 316 L (S)
  • Seal: EPDM, FKM, FEP

Performance data


  • Max. size of solids:
  • FMO 40: up to 0,28 mm
  • FMO 50: up to 0,46 mm
  • Viscosity: up to 500.000 mPas (cP)
  • Operating temp.: up to 120 °C
  • Pulses per litre:
  • FMO 40: 14,5
  • FMO 50: 6,8