The Bopp & Reuther Type OAP oval wheel meters from HMA Instrumentation are used for measuring liquid raw, intermediate or finished products such as liquefied gases, gasoline, heating oils, lubricating oils, transmission oils, solvents, bitumen, alkaline solutions, acids and other chemical liquids.
Features include:

  • Oval wheel meters for low, mid and high viscosity liquids
  • High measurement accuracy
  • Low pressure loss
  • High lifespan
  • Double-case meter design
  • No straight inlet and outlet pipe sections required
  • Measuring principle independent of the viscosity
  • Compact design
  • Easy start-up
  • Maintenance-free
  • The only SIL 2 oval wheel meter on the global market
  • A broad range of custody transfer approvals

Technical data:

Nominal size: 25 to 400 mm (1″” to 16″”)
Process connection: Flanges according to DIN or ANSI
Material: Pressure-relevant cast steel
Other wetted parts: Aluminium, brass, stainless steel, others
Flow range: 300 litres/h to 24 000 litres/min
Linearity: ± 0.05% to ± 0.5% OR
Repeatability: ± 0.02%
Viscosity: 0.1 to 100 000 mPa
Process temperature: – 40°C to +290°C
Process pressure: Maximum 100 bar
Ex protection: Flameproof or intrinsic