SKU DFM-805 Category

Pressure flow meter type 805

Variable area flow meters for liquids and gases

data sheet

Product information

The GEMÜ 805 is a variable area flow meter for the precise measurement of liquids and gases. It is suitable for aggressive and neutral media and offers high chemical resistance. Thanks to transparent measuring tubes and large scales, reading is particularly easy. Magnetic floats and limit switches are optionally available.

Special features

  • High measuring accuracy (±1 % of final value, ±3 % of measured value)
  • Large, clear scales for easy readability
  • ATEX version optional
  • Over 500 standard and 13,000 special scales available
  • Corrosion-resistant plastic parts
  • Easy to install thanks to fitting screw connection or flanged connection

Variants

  • Type 805: Float made of PP
  • Connection types: Fitting screw connection, spigot, flange
  • Options: Magnetic float for limit value transmitter and measured value transmitter

Area of application

  • Chemical industry
  • Water and wastewater technology
  • Food industry
  • Mechanical engineering and energy systems

Advantages

  • High chemical resistance
  • Flexible adaptation to different media and measuring ranges
  • Easy installation and maintenance
  • Extensive range of accessories (limit value transmitter, digital display, measured value transmitter)
CharacteristicValue
Measuring principleFloat
Nominal sizeDN 20 – DN 65
Nominal pressureup to 10 bar (plastic fitting), up to 15 bar (metal fitting)
Measuring rangeLiquid: 0.5 – 33,000 l/h
Gas/vapor: 0.2 – 450 Nm³/h
Temperature range-20 to +120 °C
Measuring tube materialsPA, PSU, PVC-U
Float materialsPP, PVC-U, PVDF, stainless steel 1.4571

FAQs

Which media can be measured?

Liquids, gases and saturated steam.

Yes, for mass and energy flow of saturated steam.

HART, PROFIBUS PA, FOUNDATION Fieldbus, PROFINET, Modbus TCP.

ATEX, IECEx, SIL, CE and shipbuilding certificates.

Yes, thanks to Heartbeat Technology.

Insulation – In combination with fittings and containers

Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
Order and configure now.

We offer:

  • Custom-made insulating pads to fit your fitting
  • Heating jacket integration – reliable even under extreme conditions
  • Insulation jackets and pipe insulation for SKID assemblies – ideal for modular systems and complex systems
  • Special solutions for high temperatures – for power plants, the chemical and process industries
Armaturenfabrik Valve insulation High-temperature pipe insulation with IFS-Plast25 insulation pads and IFS-MW20 mineral wool for SKID systems, process plants

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