6.6 Flow regulator valve
The flow regulator valve, located in the lift cylinder circuit to limiting the descending
speed of loaded forks, has the construction as shown in Fig6.7. When the lift spool valve
is placed in the “lift” position, the oil from the control valve flows through the oil chambers
A and B, oil holes C, D, E and F, and the chamber G to the lift cylinder without any
regulation. When the lift spool valve is placed in the “down” position, the oil flows in the
reverse position. When the oil passes the throttle plate(5) and a pressure difference
overcomes the force of the spring(2) and moves the valve core (7) right, thus the oil flow
being decreased by narrowing of the hole D and C, and reduces the oil flow passing
through the throttle plate(5).
The flow regulator valve controls the goods descending speed and serves as a safety
device, prevent the danger for suddenly descending if the rubber hose ruptures between
the control valve and the lift cylinder.
Fig6.7 Flow regulator valve
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