Bosch Rexroth A7VO 63 Series - DRG - Remotely Controlled Pressure Controller; Characteristic Curve DRG; Schematic DRG

Bosch Rexroth AG, RE 92202/02.2015
16 A7VO Series 63 | Axial piston variable pump
DR – Pressure controller
DRG – Pressure controller, remotely controlled
A separate sequence valve with port plate provides the
pressure control function. The valve is arranged separate
from the pump; in this connection, you should not exceed
the single line length of 5m. The valve is supplied with high
pressure from port A
1
of the pump. The system feeds back
via port X
3
the control power of the valve into the pump;
the valve adjusts the pump back to V
gmin
. Note that ports T
of the sequence valve and T
1
of the pump are returned to
the reservoir (cooler).
▶ Setting range of pressure control 50to315bar
When ordering, state the setting in plain text.
Notes
▶ For versions with controller DRG, a drain line is
needed from port T
1
to the reservoir.
▶ Any pressure-relief valve included in the system to limit
the max. pressure must be set to a cracking pressure
at least 20bar above the controller setting.
You must order the sequence valve and the port plate
separately.
▶ Sequence valve (1): DZ5DP2-1X/315YMSO21
(Material number R900495604)
▶ Port plate (2): G 115/1
(Material number R900424379)
▼ Characteristic curve DRG
50
315
max
max. 10 bar
min
q
V min
flow q
V
[l/min] q
V max
Operating pressure p
B
[bar]
▼ Schematic DRG
R
2
U
R
1
V
g min
V
g max
T
1
X
3
A
A
1
M
1
S
P A T
1
2