Paddle flow switch SF series

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Thermal dispersion flow switches measure the velocity of a liquid inside a pipe or channel. The switch’s probe contains two key components – a heating sensor and temperature sensor. The heating sensor is positioned closest to the flowing liquid and provides a consistent heat. The temperature sensor measures the temperature emitted from the heating sensor. When liquid is flowing, there is a temperature difference between the two sensors. The temperature difference has a proportional to the flow velocity (fast flowing liquids will result in greater heat differences and vice versa). Since the device contains no moving parts, has no wear and tear and maintains a long lifespan. SF Series is a paddle flow switch for use with a wide variety of fluids. The paddle flow switch uses the force of the liquid flow to actuate a reed switch. It can be activated by as little as 5gpm (19.4l/m) flow.