RE 18301-08/02.2016, Bosch Rexroth AG
4/3 Directional valve elements | L8_L1… (ED-LV)
Functional description
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Functional description
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The sandwich plate design directional valve elements
L8_1… are compact manual operated valves which control
the start, the stop and the direction of the oil fl ow.
These elements basically consist of a stackable housing (1)
with a control spool (2), a block with the control lever (3),
and a spring housing (4) with a return spring (5).
The hand operated lever moves the control spool (2) from
its neutral-central position “0” to the required position “a”
or “b”, and the required fl ow from P to A (with B to T), or P
to B (with A to T) is achieved.
Type L8_L1_2S_ __M100 is the valve version in which the
return spring (5) brings the spool back to neutral-central
position “0” when the manual lever is not operated.
The valve is available with a choice of spool variants (refer
to page 2).
Type L8_L1_2S_ __F100 is the valve version with mechanical
detent in which the control spool (2) stays in anyone of the
3 achieved positions “0”, “a” or “b” when the lever is left
free. With this valve, the oil delivery can continue without
any action on the lever.
Also this version is available with a choice of spool variants
(refer to page 2).
Special types of control are available upon request.