F10-1D22-BKB Datasheet, PDF (2/12 Pages) Magnetrol International, Inc. – F10 & F50 Flow Switches

TECHNOLOGY
Model F10
Flow through the horizontal pipeline causes the pivoted
vane assembly to swing in the direction of the flow. The
vane assembly lifts an attraction sleeve which in turn
causes the magnet to pull in and actuate the switch.
The O-ring sealed adjusting screw in the top of the
enclosing tube compresses the range spring located
above the attraction sleeve. Turning the adjusting screw
clockwise increases the flow rate at which the switch
actuates. Adjustments can be made while the flow switch
is in service.
Pivot
Return
spring
Swing out
position
Adjusting
screw
Magnetic
sleeve
Actuating
vane
Pivot
Return
Spring
Magnet
Model F50
The rate of flow through the valve body raises or lowers
the disc. This in turn raises or lowers the magnetic sleeve
within its sealed non-magnetic enclosing tube. On an
increasing flow rate, the magnetic sleeve rises into the
field of the permanent magnet, located outside the
enclosing tube, actuating the attached switch mechanism.
When the flow rate drops below the rate for which the
flow disc is calibrated, a reversal of this action occurs.
Switch mechanism
Pivot
Return
spring
Swing out
position
Enclosing
tube
(non-magnetic)
Sleeve
(magnetic)
Flow disc
Pivot
Magnet
Swing in
position
Return
Spring
No-flow position
Position with actuating flow present
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