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Flow Meters | KEM

Supplier: Control Components

Control Components supplies KEM's range of flow meters.

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KEM products available:

  • Gear flow meters (ZHM)
    • Two precise gears are rotating freely inside the measuring chamber. Closed chambers are created between the gears and the housing. The measured medium is then "forced through", causing the gears to rotate.

The gears run freely in the medium. Their rotational frequency is proportional to the instantaneous flow rate and is measured by pickups through the housing wall whereas the fuid remains contact  free. These meters are suitable for accurate measurement of different liquids with viscosities of approximately 5 to 25,000 mm2/s. The small gear and ball bearing versions can also be used with low viscosity mediums and fuels, maintaining high measurement accuracy.

  • Turbine flow meters (HM)
    • Turbine low meters (HM} are flow meters working accor- ding to the principle of Woltmann meters. They assess the flow through the cross-section of a pipe by means of the mean flow velocity. A low mass turbine wheel is concentrically mounted in the tubular body of the turbine. The flowing medium hits it in the axial direction and rotates it.

Flow conditioners smooth the medium, so that the wheel is in contact with a uniform flow. The speed of the turbine wheel is proportional to the ave- rage flow velocity in the pipe cross section and is therefore mostly proportional to the flow rate. They are used for precise measurement of instantaneous flow rates and fow-metering of low viscosity liquids.

  • Helical flow meters (SRZ)
    • Helical low meters (SRZ} are positive displacement meters with two cycloidal screws with geometrically overlapping profi These profi mesh in a cylindrical housing. This creates a measuring chamber between the spindle profi and the housing walls.The flow of the measuring medium is forced axially through the spindle profi along the two measuring chamber holes, which causes the spindles to rotate.

This occurs without pulsation and with minimum leakage. Using a magnet wheel with a high number of teeth the pickup detects the frequency of the spindle pair through the housing wall. The speed is proportional to the fow volume. The pickup has no direct contact to the fluid.

  • Coriolis mass flow meters (KCM)
    • Coriolis mass low meters (KCM} contain two parallel tubes that vibrate at their resonance frequency. Should a measurement fow enter the measuring tube, Coriolis forces are the result. Coriolis forces appear in oscillating systems when a mass moves towards or away from a rotational axis. These forces act on the inlet and outlet side in the opposite direction and minimally deform the measuring tubes.

The defection of the measuring tubes is measured by the pickups on the infow and outfow side. A time shift proporti- onal to the mass fow occurs at the pickups. The resonance frequency of the tubes varies depending on the density of the medium to be measured. This effect is used to measure the density of the medium. Since the elastic properties of the fow tubes depend on the temperature, a temperature measurement is carried out for compensation. The primary characteristics such as mass fow rate, densi- ty and temperature are measured with a single meter. The fow volume can be determined based on the mass fow rate and density.

  • Micro flow meters (LFM)
    • Optical turbidity meters (KPS} are used to optimize industrial production processes and are particularly suitable for liquid foods. The optical sensors detect and analyze even the sligh- test changes in product composition of various liquids. An output signal of 4-20 mA depending on the turbidity level is available to the user for process control purposes.

Due to a wide range of process interfaces, the device can be used in the pharmaceutical and food industry. It is suitable for the detection of product transitions and concentration changes in a variety of applications in the food industry. Among these applications are for example the monitoring of processing and phase separation of milk, ice cream, yoghurt, whey, juices, beer or water.

  • Optical turbidity meters (KPS)
    • Optical turbidity meters (KPS} are used to optimize industrial production processes and are particularly suitable for liquid foods. The optical sensors detect and analyze even the sligh- test changes in product composition of various liquids. An output signal of 4-20 mA depending on the turbidity level is available to the user for process control purposes.

Due to a wide range of process interfaces, the device can be used in the pharmaceutical and food industry. It is suitable for the detection of product transitions and concentration changes in a variety of applications in the food industry. Among these applications are for example the monitoring of processing and phase separation of milk, ice cream, yoghurt, whey, juices, beer or water.

  • Dispense control device (DCD)
    • The Dispense  Control  Device (DCD}  is the result of KEM`s co-operation with the Swiss pump manufacturer POMTAVA. It includes a gear dosing pump with a gear fow meter incorporated into the connector block, which measures the actual fow rate and provides a corresponding output signal. This way the set point can be constantly adjusted and permanently monitored, even at small deviations.

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