Bosch Rexroth A2FM series - Dimensions; Ports; Mounting of the counterbalance valve

Bosch Rexroth AG, RE 91001-01-X-B2/01.2016
26 A2FM for explosive areas | Axial piston fixed motor
Counterbalance valve BVD
Dimensions [mm]
Dimensions
Y
A,B
M
B
T
B3
B2
B1
B4
B7
B6 B5
A
B
S
G
ext
View Y
A2FM Counterbalance valve
NG Type Ports Dimensions
A, B B1 B2 B3 B4 (S) B4 (L) B5 B6 B7
28, 32 BVD20..16 3/4 in 209 175 174 142 147 139 98 66
45 BVD20..16 3/4 in 222 196 187 142 147 139 98 66
56, 63 BVD20..17 3/4 in 250 197 208 142 147 139 98 75
80, 90 BVD20..27 1 in 271 207 229 142 147 139 98 75
107, 125 BVD20..28 1 in 298 238 251 142 147 139 98 84
107, 125 BVD25..38 1 1/4 in 298 239 251 158 163 175 120.5 84
160, 180 BVD25..38 1 1/4 in 332 260 285 158 163 175 120.5 84
Ports Version Standard Size
1)
p
maxzul
[bar]
2)
State
4)
A, B Working line SAE J518 see table above 420 O
S Infeed BVD20 DIN 3852
3)
M22×1.5;14deep 30 X
BVD25 DIN 3852
3)
M27x 2; 16deep 30 X
Br Brake release, reduced high
pressure
L DIN 3852
3)
M12×1.5; 12.5 deep 30 O
DIN 3852
3)
M12×1.5; 12 deep 30 O
G
ext
Brake release, high pressure S DIN 3852
3)
M12×1.5; 12.5 deep 420 X
M
A
, M
B
Pressure measurement
Aand B
ISO 6149
3)
M12×1.5; 12 deep 420 X
Mounting of the counterbalance valve
When delivered, the counterbalance valve is mounted to the
motor with two tacking screws (transport protection). The
tacking screws may not be removed while mounting the work‑
ing lines! If the counterbalance valve and motor are delivered
separately, the counterbalance valve must first be mounted to
the motor port plate using the provided tacking screws.
The counterbalance valve is finally mounted to the motor by
screwing on the SAE flange
The screws to be used and the instructions for fitting can
be found in the instruction manual.
1) For notes on tightening torques, see the instruction manual
2) Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
3) The spot face can be deeper than as specified in the standard
4) O= Must be connected (plugged on delivery)
X= Plugged (in normal operation)