3000 / 3000E Series - Nestec Flow Switches


The 3000 Series range are reliable, well-proven with a low maintenance design and are competitively priced. The 3000E Series models are protected to IP67.


  • Reliable, well-proven, low maintenance design, competitively priced.
  • Detects low flow or flow failure in chemical pipelines.
  • Suitable for continuous or pulsed flow.
  • Detects rates of flow down to 0.05l/hr on standard models.
  • Normal flow capacities in excess of 12,000l/hr.
  • Reed switch operation ensures long working life. Normally open or changeover versions available.
  • Volt free operation of the reed switch means no further electronics are required to obtain a signal and all models can be used in conjunction with computers or PLC’s.
  • Two versions available, flying lead or enclosed cable termination. Available in plastics or stainless steel with various process connections.
  • All models adjustable on site for changes in flow or viscosity.
  • Protection to IP67 on 3000E models.


  • Low flow detection.
  • Flow failure protection.
  • Chemical injection systems.
  • Water treatment.
  • Food industry.
  • Heating & ventilation.
  • Machine tools.
  • Plant & equipment protection.
  • Cooling water monitoring.
  • Centrifugal, peristaltic and dosing pump monitoring.
3000 / 3000E Series
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