Control Valve Sb11-Ehs4 - Bosch Rexroth SB11 Instruction Manual

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Internal function
Bosch Rexroth AG, RE 66177-B/2022-05-03
5�3�9 Control valve SB11-EHS4
Table 10: Internal functions
Position Designation
Valve axis
Individual pressure compensator with check
valve function
Electro-hydraulic actuating unit EHS4
Check valve
Check valve with thermal pressure relief valve
Shuttle valve
Threaded plug
CAUTION! The treaded plugs on the EVR closing side
plugs and must not be removed! The threaded bores are not designed for
connection fittings.
At versions with working port
a threaded plug.
Individual pressure compensator
block-internal channel P. The integrated check valve function prevents the return
flow to the block-internal channel P.
Electro-hydraulic actuating unit EHS4
bus pilot signal. The received CAN bus pilot signals are converted to respective
deflection of the control spool.
Check valve : Prevents valve-internal return flow in working port
Thermal pressure relief valve in check valve
valve is integrated into the check valve and is opened in case of an inadmissible
temperature-related pressure increase in the working port. The discharged volume
is very low.
Shuttle valve : Directs the higher LS pressure through the control block/control
block segment.
Information
optional
optional
and the threaded
, working port is plugged with
: Controls the valve-internal inlet flow of the
: Control is realized at port
: The thermal pressure relief
via CAN
.