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Piston Inline Flow Measurement

Piston inline flow measurement has many benefits including free mounting position, small number of components, high operating pressures, setpoint adjustability and no need for an external power supply.
The measuring principle of piston inline flow measurement uses a spring-loaded piston that is displaced by the flow stream. The displacement increases with flow and can be used to actuate a switch or indicate flow rate.

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MR Piston Inline Flow Switch with optional indicator

The Honsberg MR flow switch has an adjustable setpoint, is available in either brass or stainless steel bodies and is suitable for use with water, oil, air and gases.

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FW1 Piston Inline Flow Switch

The Honsberg FW1 Mechanical Flow Switch is suitable for liquid or gaseous media, with spring-supported piston and magnetic triggering of a reed switch. Rugged design in plastic or brass. The FW1 features minimal pressure loss, good repeatability, high switch capability, dirt-resistance and hermetic separation of mechanical and electrical components.

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FW3 Piston Inline Flow Switch

The Honsberg FW3 Mechanical Flow Switch is designed for liquid or gaseous media, with spring-supported piston and magnetic triggering of a reed switch. The FW3 features a rugged design brass, good repeatability, high switch capability & hermetic separation of mechanical & electrical components.

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FX Piston Inline Flow Switch

The Honsberg FX Mechanical Flow Switch is designed for liquid or gaseous media, with magnetic triggering of a fixed reed switch. It features a plastic housing with integrated filter, fixed switch value, control of small flow rates, high switch capability & flow regulator as option.