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Installation
Port overview
R
X
1
X
T
Fig. 10: Port overview A21VG, EP control with boost pump
Table 10: Ports A21VG series 10
Ports
A, B
Working port
Drain port
T
R
Air bleed on pump 1
X
, X
Control pressure
1
2
(upstream of orifice, only HP, HW, EP, ET)
X
, X
Control pressure (HT)
1
2
Y
Pilot pressure, outlet
(only for DA control valve)
G
Boost pressure, inlet
Y
Brake release pressure
BR
P
Pilot pressure supply
S
(filtered internally)
Boost pressure, inlet
G
1
(only for DA control valve)
Bosch Rexroth Corporation, A21VG Series 10, RE 93223-01-B/09.2020
X
2
X
1
2
G
1)
Standard
ISO 11926
ISO 11926
ISO 11926
ISO 11926
ISO 11926
ISO 11926
ISO 11926
ISO 11926
ISO 11926
ISO 11926
1)
Thread according to ASME B1.1
2)
The spot face can be deeper than specified in the appropriate
standard.
3)
For notes on tightening torques, see instruction manual
4)
Momentary pressure spikes may occur depending on the
application. Keep this in mind when selecting measuring
devices and fittings.
5)
O = Must be connected (plugged on delivery)
X = Plugged (normal operation)
Port G (or G
on the version with DA control valve) must be charged with boost
1
pressure by the customer.
B
2)
3)
Size [in]
1 1/16-12 UN-2B; 20 deep
1 1/16-12 UN-2B; 20 deep
9/16-18 UNF-2B; 13 deep
9/16-18 UNF-2B; 13 deep
9/16-18 UNF-2B; 13 deep
9/16-18 UNF-2B; 13 deep
3/4-16 UNF-2B; 15 deep
9/16-18 UNF-2B; 13 deep
9/16-18 UNF-2B; 13 deep
9/16-18 UNF-2B; 13 deep
B
A
A
4)
p
[bar]
State
max abs
450
O
3
O
3
X
30
X
30
O
30
O
30
O
30
X
30
X
30
X
5)
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