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Homepage Alutal Level and Volume Float level switches Model TK1 liquid level switch

Model TK1 liquid level switch

The TK1 liquid level switches are float-actuated devices designed for horizontal mounting in a tank or process vessel through threaded or flanged connections. This low-cost switch is ideal for OEM applications where a single point high or low level alarm is desired.
Float level switches technology

All float operated liquid level controls operate on the basic buoyancy principle which states "the buoyancy force action on an object is equal to the mass of liquid displaced by the object." As a result, floats ride on the liquid surface partially submerged and move the same distance the liquid level moves. Because of this, they are normally used for narrow level differential applications such as high level alarm or low level alarm.

Features

  • Pressure ratings to 1500 psi (103 bar)
  • Process temperature ratings to +300 °F (+150 °C)
  • Specific gravity as low as 0.40
  • Compact design
  • For use on rising or falling level
  • Reliable reed switch action
  • All stainless steel construction

Options

  • 1½ or 2 inch process connections
  • Hermetically sealed reed switch with optional four-wire dry contact relay
  • 316/316L stainless steel or cast iron/aluminum enclosure material
  • Type of contacts: SPST, SPDT or DPDT

Operating principle

The TK1 achieves switching action through the use of a magnet attached to the float assembly and the magnet’s interaction with a reed switch.

As the liquid level changes, the float and, therefore, the float magnet, moves. The proximity of the float magnet to the reed switch causes the switch to change state, making or breaking an electrical circuit.


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