Model F10 vane-actuated mechanical flow switch

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Model F10 vane-actuated mechanical flow switch

Magnetrol® flow switches are highly reliable flow control solutions utilized to sense the presence or absence of flow in horizontal pipelines. Model F10 switches are vane actuated for use on gas or liquid flow applications in 2 inch or larger line sizes.

Mechanical flow switches

Technology

F10: Force of liquid or gas flow against a vertical flow vane mounted in a line causes the vane to pivot to a horizontal position, moving an attraction sleeve into the field of a switch magnet. This pulls the magnet toward the sleeve and actuates the switch.

F50: The force of liquid flow through a valve body and against a flow disc causes it to lift out of the flow path. The attraction sleeve at the top of the disc assembly moves into the field of a switch magnet, attracting the magnet and actuating the switch.

Field adjustable
Negligible pressure drop
Process pressures to 1000 psig (69 bar)
Process temps. to +450°F (+230°C)
Actuation on increasing or decreasing flow
Standard flow vanes for 2” through 10” flow lines
Special sensing elements for non-standard or high flow applications

Options

High flow vanes
Larger pipe vanes
Carbon steel or SST construction.
21-1290 GPM actuation flow rates depeding on material and line size

Common applications

Flow: Air flow
Flow: Centrifugal pump protection
Flow: Compressors & Pumps
Flow: Gas mixtures flow
Flow: Liquified gases
Flow: Single gas flow

Petroleum refining

Refinery flow applications

Renewable energy

Biogas
Hydroelectric
Solar

Water & wastewater

Blower air flow
Digester gas flow

The actuating vane is magnetically linked to a pivoted electric (or pneumatic) switch, which is isolated from the process by a non-magnetic barrier tube. As the actuating vane moves with an increase in flow, it drives a magnetic sleeve into the field of a permanent magnet located outside the barrier tube which trips the switch. As flow decreases, the actuating vane returns to a vertical position, allowing the magnet and switch assembly to return to the “No Flow” position.