1 1

Series TDFS Thermal Dispersion Flow Switch

Taxes included. Shipping calculated at checkout.

SKU :

SeriesTDFS

Calibration needed?

Thermal Dispersion Flow Switch
Non-Mechanical, Low Pressure Drop

View full details
  • Description
  • Features
  • Download Brochures

The Series TDFS Thermal Dispersion Flow Switch monitors flow or no-flow conditions using thermal dispersion technology. It features no moving parts, ensuring low maintenance and high reliability. When fluid or gas flows over its heated sensor, the cooling effect triggers a switch output. The unit includes LED indicators and adjustable set-point for flexible operation.

Key Features:

Thermal dispersion sensing with no moving parts

Field-adjustable set-point for flow detection

LED status indicators for visual confirmation

Compatible with liquids and gases depending on model

Durable build for industrial or process conditions

Applications:

Flow proofing in boilers and heating systems

Monitoring fluid flow in industrial process lines

Ensuring pump protection against dry run

HVAC and chilled/hot water systems

  • Better long term reliability and life expectancy than mechanical flow switches with no paddles or vanes to wear or break, no jams in the paddle movement, and no seals on movement assembly to wear or leak
  • Not affected by empty pipe detection and avoids overheating by actively heating above the process temperature and then cooling down to process temperature
  • Set point is easily field set by taping the included magnet on the set point target three times at the desired flow rate
  • LED status indicators provide visual switch indication of set point
  • Low pressure drop, only needs to be 10% into the flow (e.g. 1/8" for 3/4" schedule 40 pipe)