Filters

3000 / 3000E Series: For low flow rates and chemical dosing pumps – compact and sealed to IP67
4000 Series: Reed switch design for general-purpose flow detection
5000 Series: Flameproof / ATEX-rated magnetic piston flow switches – suitable for harsh environments
8000 Series: Submersible (IP68) models with proximity sensors for difficult process areas
21000 / 22000 Series: Pulse output or high-sensitivity proximity switches for integration with control systems

Flow Switches / Indicators

ABLE Instruments are the UK manufacturer of Nestec flow switches and indicators, offering a comprehensive range of compact, rugged flow detection solutions for liquids and gases.

This category includes mechanical flow switches and indicators that use reed switch, magnetic piston, and proximity sensor technology. These devices are ideal for flow/no-flow detection, pump protection, chemical dosing, flameproof environments, and submerged installations. Nestec’s designs are trusted for their accuracy, durability and adaptability across challenging industrial applications.

Nestec flow switches and indicators are suited to cooling loops, chillers, dosing systems, oil and fuel lines, and other industrial flow applications. They are easy to install, require minimal maintenance, and provide reliable switching, even under pulsating flow or intermittent conditions.

Have a particular application in mind? We’d welcome a call on +44 (0) 1189 169 420