Nestec Services

Nestec flow switches and indicators are part of Able Instruments’ in-house product portfolio, following the acquisition of Nestec Services Ltd. This trusted range of mechanical flow detection devices is fully supported by Able’s sales, service, and technical infrastructure in the UK and Ireland.

With more than 40 years of engineering behind them, Nestec flow switches and indicators have earned a strong reputation for reliability, simplicity, and robustness across a wide range of flow monitoring applications. Originally developed to meet the needs of chemical dosing systems, they are now widely used in utilities, OEM equipment, process plants, offshore installations, and harsh industrial environments.

The Nestec range includes reed switch, magnetic piston, and proximity-based flow switches, as well as compact indicators suitable for visual and signal-based flow confirmation. Many models are available with IP67 or IP68 environmental protection, flameproof (ATEX) housings, or intrinsically safe output options for hazardous area use.


+ Learn More

Nestec 4000 Series Flow Switch

Reed switch flow switch for cooling, dosing and OEM applications.

  • Brand: Nestec Services

  • P/N: 4000 Series

  • Lead Time: Contact us for info

Nestec 8000 Series Flow Switch

Pressure-tight flow switch for hydraulic and heavy-duty applications.

  • Brand: Nestec Services

  • P/N: 8000 Series

  • Lead Time: Contact us for info

Nestec 21000 Series Flow Switch

High-flow piston switch for 2″ pipelines and large volumes.

  • Brand: Nestec Services

  • P/N: 21000 Series

  • Lead Time: Contact us for info

Nestec 22000 Series Flow Switch

Inline piston flow switch with SPDT output and 1″ connections.

  • Brand: Nestec Services

  • P/N: 22000 Series

  • Lead Time: Contact us for info