Bosch Rexroth SB24/34 - Page 29

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RE 66170-B/2019-05-15, Control block SB24/34, Bosch Rexroth AG
Individual pressure compensator : Controls the valve-internal inlet flow of the
block-internal channel P.
Lifting spool valve axis
: Controls the inlet flow to working port or .
Lowering valve cartridge valve axis
: Controls the return flow via return flow
port
.
Non-return valve
: Prevents valve-internal return flow from working port or
.
Secondary pressure relief valve
: Secures the operating pressure in working
port
or .
Shuttle valve
: Directs the higher LS pressure through the control block/control
block segment.
It is operated via proportional solenoid coil of lifting solenoid
and lowering
solenoid
by means of PWM pilot signal.
Lifting solenoid and lowering solenoid optionally with manual auxiliary actuation.
Internal function
Operation / control
Fluid plan