Thermal

Thermal
Thermal flow switches are sensors with an electrical contact output at a specific flow rate. Dwyer models provide a complete system for leak detection and feature a selectable NO or NC operation. Applications include chillers, hot water heaters, and liquid transfer systems.
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  1. Series TDS Thermal Dispersion Flow Switch
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    Thermal Dispersion Flow Switch offers solid state flow detection of ...
    Starting at $333.00
  2. Series TDFS2 Thermal Dispersion Flow Switch
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    A thermal dispersion flow switch indicates whether the flow rate is ...
    Starting at $273.40
  3. Model TDFT Thermal Dispersion Flow Transmitter
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    Thermal Dispersion Flow Transmitter has continuous frequency output, ...
    Starting at $487.00
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Questions

Question
can flow switch TDFS-2 be usedin zone 1 hazardous location
Answer
Unfortunately, TDFS2 cannot be used in hazardous locations.
Question
Can I use this product for sediment-laden liquids?
Answer
The TDFS2 is designed for homogeneous liquids. However, it has no moving parts and can withstand sediment. As long as the installation instructions are followed and the unit is installed in a chemically compatible fluid, the TDFS2 can be used.
Question
What flow rate does the TDFS2 work with?
Answer
The TDFS2 can withstand high flow rates and works for setpoint ranges from 0.5 to 10 ft/s (0.15 to 3.0 m/s). As this varies by pipe size, refer to the installation manual for a full flow table by pipe size for exact applicable flow ranges.
Question
Can I use this product for sediment-laden liquids?
Answer
The TDFS2 is designed for homogeneous liquids. However, it has no moving parts and can withstand sediment. As long as the installation instructions are followed and the unit is installed in a chemically compatible fluid, the TDFS2 can be used.
Question
What flow rate does the TDFS2 work with?
Answer
The TDFS2 can withstand high flow rates and works for setpoint ranges from 0.5 to 10 ft/s (0.15 to 3.0 m/s). As this varies by pipe size, refer to the installation manual for a full flow table by pipe size for exact applicable flow ranges.