Manufacturer
Nexoil
Name
DFL3
Country
Italy
Type
Valve
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The dual line valve is strictly hydraulically operated. Figure 1 -
Illustrates the operating principle of the valve. The pressure in
one of the main lines (line 1 in this case) acts on spool A and
piston B. Piston B discharges the measured quantity of
lubrication to the outlet. When A & B are in the same position
and have completed their metering function, the pressure
rises in the feed line number 1 and the pump changes to line
2. The lubrication now feeding through line 2, reverses the
action in spool A and piston B which forces the lubrication
out of the opposite outlet, completing the cycle. Note: the
volumetric adjustment controls both outlets.
