Level Adjustable Air Suspension Valve - BPW ECO Tronic EBS Operating And Installation Instructions

5 Installation and Operating Instructions
5.2 Air suspension
5.2.2 Air suspension valve with height limitation
– dimensions and connections
Identification mark
for the lever
mounting position
Fig. 121
Application
The air suspension valve with height limitation controls the
pressure in the bellows for vehicles with air suspension and limits
the raising procedure in connection with a raising and lowering
mechanism (COLAS®+) when a maximum permitted body
height has been reached, in order to protect other components
from being damaged.
Operation of the height limitation function
The raise/lower valve is fed via the levelling valve from port 12
to port 23.
If maximum body height is reached during the lifting action, the
twisting of the shaft and the associated downward motion of
the pipe cause the valve plate to sit on the valve seat, which
interrupts the supply from port 12 to port 23 and so ends the
lifting action.
68
max. 320
min. 80
63
50
25 20
40
SW 27
Charging
Discharging
12
Ø 3.3
23 23
3
18
Ø 36
61
67
44
20
4
23
4
SW 13
Technical Data
Operating pressure, dyn.:
Permitted dyn. bellow pressure:
Operating temperature:
Operating range (charging - and exhausting): 45°
Nominal diameter/type: 1.3
Side of control: on the left and on the right
Dead angle at 7 - 8 bars: 2°
Connection:
1, 21, 22 = M 12 x 1.5
12, 23 = M 16 x 1.5
Tightening torques of the connection
1, 21, 22 12 to 15 Nm
12, 23 20 to 25 Nm
Connection designation:
1/12 1./2. Energy fl ow
21/22/23 1./2./3. Energy release
3 Venting
88
20
Adjusting screw
Exhaust valve
pe max. 13 bar
pe max. 20 bar
- 40°C to + 80°C