Table of Contents
Advertisement
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
of the pump. The system feeds back
1
via port X
the control power of the valve into the pump;
3
the valve adjusts the pump back to V
of the sequence valve and T
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
to the reservoir.
1
▶ 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)
Bosch Rexroth AG, RE 92202/02.2015
. Note that ports T
g min
of the pump are returned to
1
▼ Characteristic curve DRG
max
315
50
min
q
flow q
V min
▼ Schematic DRG
U
R
1
V
g min
V
g max
R
2
[l/min]
q
V
V max
1
2
P
A
A
1
X
3
T
1
S
M
1
A
T
Hide quick links:
Advertisement
Table of Contents
