Oval Wheel Meter Flowal Plus

Versatile flowmeter for measuring the volume of liquids in mechanical engineering, factory automation and process instrumentation, such as suited for industrial fluids, chemical fluids, mineral oils and fuels. The modular design combines reliable mechanical sensors with modern electronics. The plastic version is suitable for measuring the volume of corrosive liquids, acids, alkalis, solvents, dyes…

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Description

Description

Characteristics

  • oval wheel meters for low to mid viscosity liquids
  • battery powered model available
  • low pressure loss

Special Features

  • single case meter design
  • no straight inlet and outlet pipe sections required
  • measuring principle independent of the viscosity
  • easy start-up
  • maintenance-free
  • plastic version: no wetted metal parts and low weight
  • built-in temperature sensor
  • battery-supplied compact devices
  • detection of flow direction

Technical data

Nominal size

G1/4“, G1/2“, G3/4“, G1“, G2“
Flanges DN15, DN25, DN50
Flanges ½“, 1“, 2“

Process connection

Inside threads according to ISO 288
Flanges according to DIN or ANSI

Material

pressure relevant: stainless steel, aluminum, PVDF, PP

other wetted parts: PEEK; stainless steel

Flow Range 0,03 l/min to 660 l/min
Accuracy ±0,25% to ±0,5%
Repeatability ±0,02%
Viscosity

0,3 to 3.000 mPa·s

Process temperature

-40°C up to 130°C
(-40°F up to 266°F)

Process pressure up to 68 bar (986 psi)
Ex-protection intrinsically safe (ATEX or IEC-Ex)

 

About Bopp & Reuther

Products & Features

Bopp & Reuther Messtechnik GmbH is a German-based manufacturer founded in 1872. The company is globally recognized for its expertise in high-precision flow, density, and concentration measurements. The company is best known as the inventor of the oval wheel meter principle (patented in 1932). Their current portfolio includes: 

  • Flow Meters: Oval wheel meters (OaP, OP, OI, OC, OK, Flowal, OD), Coriolis mass flow meters, turbine meters, vortex meters, and electromagnetic flowmeters.
  • Density & Concentration: for liquids and gases.
  • System Solutions: Dosing and filling solutions, flow computers metering skids
Benefits
  • No Inlet/Outlet Needed: Oval wheel meters can be installed directly, saving space and piping costs.
  • Independence from Viscosity: Ideal for high-viscosity media where other technologies fail.
  • Low Maintenance & Durability: Long service life due to rugged construction.
  • Short Dosing Times: Electromagnetic flowmeters and Coriolis meters offer quick batching times, some under 0.2s, suitable for food/pharmaceutical industries.
  • Comprehensive Solutions: Tailor-made metering skids, including strainers, gas separators, and flow computers.