CB - Counterbalance Valves
Counterbalance Valves Catalog
CB - 8
11141716 • Rev AC • April 2014
OPERATION
APPLICATIONS
SPECIFICATIONS
PERFORMANCE
SCHEMATIC
1
2
3
CB10-HV : Counterbalance valve, 10-size, hydraulic vent.
This valve is 3-ported, externally piloted and low leakage.
The check section allows free flow from the directional valve
(port 2) to the load (port 1), while normally blocking flow
from port 1 to port 2. Reverse flow is blocked until pilot
pressure is applied at port 3. When the load pressure at port
1 rises above the pressure setting, the intergral relief valve is
activated and pressure is relieved from port 1 to port 2.
Rated pressure 350 bar [5075 psi]*
Rated flow at
22 bar (319 psi
60 l/min [16 US gal/min]
Leakage 10 drops/min @ 70% of
crack pressure
Weight 0.22 kg [0.47 lb]
Pilot ratio 3:1, 4.5:1, 10:1
Cavity SDC10-3S
* 350 bar with steel housing
210 bar with aluminum housing
CB10-HV
Hydraulic Vent
Single counterbalance valves are normally used when the load is unidirectional, such as aerial lifts, cranes, or winches.
In load holding applications, they can be used as hose-break valves when installed near or within an actuator. Dual
valves can be used for controlling loads bi-directionally in motor applications, or for cylinders going over center.
100
200
300
10 20 30 40 50 60
l/min
5
10
15
20
25
bar
15
US gal/min
psi
0
12
963
26 cSt [121 SUS] hyd.oil at 50°C [122°F]
Pilot open
Free flow
CB10-HV
CB - Counterbalance Valves
Counterbalance Valves Catalog
CB - 9
mm [in]
11141716 • Rev AC • April 2014
DIMENSIONS
EXAMPLE CIRCUITS
ORDERING INFORMATION
Load Holding -
Single Actuator
Counterbalance-
Double
Actuator
CB10-HVCB10-HV
CB10-HV
CB10-HV
46.3
[1.82]
36.4
[1.43]
4
[0.16]
Ø21.2
[Ø0.83]
2
1
3
7/8-14 UNF-2A
27mm
17mm
16 - 20 Nm [12-15 lbf*ft]
45 - 50 Nm [33-37 lbf*ft]
Type F:Tamper Resistant
Type E: External Adjustment
4mm
Turn ccw to increase
pressure setting
Turn cw to reduce
pressure setting
Hydraulic Vent
CB10-HV
