• KAL K Thermo Flow Switch, Sanitary Version, 316 L Stainless Steel, 1 1/2" Tri Clamp KAL-4340S

KOBOLD Instruments KAL-4340S KAL K Thermo Flow Switch, Sanitary Version, 316 L Stainless Steel, 1 1/2" Tri Clamp

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Shipping Weight:
5.00 LBS

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The KAL-K thermal flow switch utilizes KOBOLD's temperature compensating electronics. This compact, one-piece unit provides reliable readings unaffected by temperature or physical characteristics of non-viscous water-based liquids. This is made possible through the use of state-of-the-art microprocessor technology. The microprocessor can be field calibrated to both the liquid properties and operating range in a simple, five minute set-up procedure. This intelligence, coupled with a "no moving parts" design, make the KAL a superior performer in virtually all applications. The KAL-K is also offered in a 3-A compliant version.

The KAL-K incorporates an 8 segment bar-graph LED flow trend indicator and one flow alarm setpoint. The setpoint is fully configurable as NPN, PNP, normally open or normally closed.

The KAL design is based on the time proven calorimetric principle. The sensor is internally heated to a few degrees above the temperature of the media. Flow causes removal of heat from the sensor, resulting in a cooling effect. The rate of cooling is a measure of the flow velocity. The microprocessor based design of the KAL distinguishes it from the competition. Full temperature compensation of the flow rate is readily obtained through a simple, one-time, calibration procedure. This assures elimination of flow rate reading drift caused by temperature variations in the process liquid.

The KOBOLD KAL flow products use a microprocessor to compensate for temperature changes through use of an internal look-up table. End-users can easily adapt the equipment to the requirements of their unique installations. Unlike conventional calorimetric flow switches, the technically advanced design of the KAL provides a flow reading which is unaffected by temperature.


  • Flow Velocities from 0.04-2 m/s
  • Tmax: 250 °F, Pmax: 1450 PSIG
  • NPT and 3-A Compliant Sanitary Fittings
  • No Moving Parts
  • Intelligent Temperature Compensation
  • Extremely Low Pressure Loss
  • Easy to Operate
  • Insensitive to Dirt

Product Specifications

Fittings1 ½" Tri-Clamp®
Model Material316 L SS
Sensing Range0.04-2 m/s
MediaWater-Based Liquids
Operating Temperature32-250 °F
Maximum Pressure (Threaded)1450 PSIG
Maximum Pressure (Sanitary)600 PSIG or per Clamp Rating
ProtectionIP 65

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