KRAL Flowmeters OMS Series.

Stainless steel design for demanding media.

When selecting a flowmeter for demanding fluids, the issue of material resistance always arises. The KRAL flowmeter OMS series is a stainless steel design for low and high viscous media, equipped with ball bearings or plain bearings depending on the application.

Your benefits.

  • High accuracy positive displacement meter.
  • Low service costs and long lifespan with KRAL products.
  • Extremely robust liquid flow meter.
  • Stabilization zones unnecessary.
  • Low friction and minimal loss of pressure.
  • Very compact design of the measuring unit.
  • For harsh industrial conditions.

Application examples.

  • Dosing of resin, paints, adhesives.
  • Coating of propellers in wind power turbines.
  • Insulating materials.
  • Greases and waxes.
  • Water volumetric flow measurements.

Materials.

  • Housing: Stainless steel.
  • Screws: Stainless steel (coated for high viscosity media).
  • Bearings: Ball or sliding bearings.
  • Gasket with ball bearings: Viton®.
  • Gasket with sliding bearings: Teflon®.
Technical data OMS-020 OMS-032 OMS-052 OMS-020
Media   Low viscosity Low viscosity Low viscosity High viscosity
Nominal diameter DN inch ¾ 1 1 ½ ¾
Flow rate l/min Qmax 45 150 525 -
  Qnom 30 100 350 10
  Qmin 0.6* 2.0* 7.0* 0.04*
Max. pressure bar 185 185 120 400
Temperature °C -20 to +150 -20 to +150 -20 to +150 -20 to +80
Viscosity mm²/s 1 to 10² 1 to 10² 1 to 10² 10² to 10⁶
Precision of measurement value ±0.1 %* ±0.1 %* ±0.1 %* ±0.5 %
Repeatability   ±0.01 % ±0.01 % ±0.01 % ±0.01 %
K-factor P/I 1,280 468 142 66,000
Frequency at Qnom Hz 640 780 828 11,000
* information in the case of non-lubricating media on request
Sensor BEG 44A BEG 47D** / BEG 47E**
Application   High pressures,
broad temperature range		 Ex-range
K-factor   K2 K1
Signal   Push-Pull Namur
Temperature [°C] -25 to +120 -25 (-40) to +100
Max. pressure [bar] 420 40
**dependent on temperature
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