Dwyer Instruments V8 Flotect flow switch

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The V8 Flotect flow switch allows the user to operate a damper or valve, shut down a burner or actuate an alarm or signal, protecting unattended equipment from damage or loss of production. Operation of the product is said to be simple and dependable.

In most applications, the switch is normally off while there is sufficient flow of liquid or air. When flow stops, the vane spring moves the vane, actuating a single-pole double-throw switch rated 5 A @ 120/250 VAC to start or stop the motor, pump, engine, etc.

The flow switch has a leak-proof body and vane constructed of tough, durable polyphenylene sulfide, which has good chemical resistance. The full-size trimmable vane is provided with moulded-in graduations, allowing for installation in a 1-6″ pipe. Operating pressures are up to 150 psig (10 bar) and temperatures to 100°C.

The flow switch can be used in various chemical processes, industrial systems and similar applications where process conditions are compatible with polyphenylene sulfide, ceramic 8 and 316SS. Examples include chemical processing, liquid transfer systems, water treatment, air conditioning, refrigeration, heating systems, cooling lines, machinery, food processing and machine tools.

http://www.dwyer-inst.com/Product/Flow/FlowSwitches/Paddle/SeriesV8