Kobold TSK Flap Flowmeter / Switch

The Kobold flap f

lowmeter type TSK is suitable for flow measurement of liquid products in pipes. The special advantage is that it can be used for all directions of flow. It shows the current flow rate in volume or mass per unit in time. The meter’s design makes it ideal for processes under difficult and adverse operating conditions. The devices are available with additional electrical equipment for process monitoring and control.

If a medium flows with sufficient velocity through the horizontally or vertically mounted TSK fitting, the paddle will swivel around the axle until the force of the medium and the opposing force of the paddle surface plus the spring tension establish equilibrium. The angular position or the position of equilibrium of the paddle in the measuring compartment is the measure for the flow. The encapsulated ring-type permanent magnet at the end of the paddle axis transmits this position to the scale and the optional electronic evaluators through the magnet tracking indicator system. This happens safely and without packing glands. The flow rates shown on the scale only apply to the calibrated medium or to a medium with the same physical characteristics.

Measuring range:
0.5 - 3.5... 200 - 1500 m³/h water
Connection: wafer flange DN25 ... DN500, ANSI 1 ... 20"
Material: steel, stainless steel, PTFE, Hastelloy®
pmax: PN 40, PN16 (DN100 - 200), PN10 (from DN250)
Temperature range:
-40 ... +200°C (-40 ... +300°C on request)
Accuracy: ±2.5 % of full scale
Options: contact, 4 - 20 mA, ATEX, Hart®, Profibus® PA


Additional Advantages

  • A large spectrum of wetted materials and linings
  • Magneto-resistive signal transmission
  • Special design for high temperature applications


  • Control of cooling- and flushing processes
  • Chemical industry
  • Water- and waste-water technology
  • Power-plants
  • Machinery-building


Technical Details

  • Sensor Materials: 1.4404 (316 L) / 1.4571 (316 Ti) (TSK-S) steel / stainless steel (TSK-C from DN125) Hastelloy® C-22 (TSK-H) PTFE / Hastelloy® C-22 (TSK-P) other materials on request
  • Process connection: sandwich acc. EN 1092, ASME B16.5, DIN 2512,
    special connections on request Nominal pressure: PN 40, ASME Cl150 / 300 (standard) (TSK-S/C/H) PN 16, ASME Cl150 (standard) (TSK-P) higher pressure rates optional
  • Process temperature:
    -40 °C ... +300 °C (TSK-S/C/H)
    -20 °C ... +125 °C (TSK-P)
  • Ambient temperature: -40 °C ... +80 °C
  • Accuracy: liquid/gas:
    ± 2.5% of full scale
    ± 0.2% with transmitter (ES)
  • Repeatability: ± 0.5%
  • Protection: IP 65 (EN 60529)


  • Explosion protection: BVS 03 ATEX H/B 112
  • CE-Marking: Pressure Equipment Directive 97/23/EG


  • Materials:
    aluminum (stove-enameled)
    stainless steel (as option)
  • Electrical outputs: inductive switch microswitch
    others on request
  • Ambient temperature:
    -40 °C ... +80 °C (without switch)
    -40 °C ... +65 °C (with switch)

Download Datasheet: Kobold TSK Flap Flowmeter / Switch

Reference : kobold.com