Specifications

62
7.6 Flow regulator valve (Fig7.7)
The flow regulator valve, located in the lift cylinder circuit to limiting the
descending speed of loaded forks, has the construction as shown in Fig7.7. 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.
Fig7.7 Flow regulator valve
1.
Joint
5.
Throttle plate
9.
Spring
2.
Spring
6.
Valve sleeve
10.
Valve body
3.
O-ring
7.
Valve core
4.
Snap ring
8.
Ball