Danfoss DCB20-HV Technical Information
Counterbalance Valves Technical Information
Dual Counterbalance - Hydraulic Vent
DCB20-HV
OPERATION
DCB20-HV: Dual counterbalance HIC, 20-size, hydraulic vent. This HIC is low leakage and internally piloted. The DCB20-HV uses 2 CB20-HV 20-size cartridges and allows free flow from the V port to the C ports and blocks flow in the reverse direction until the relief setting is reached, or until adequate pilot pressure has been applied to the opposite V port.
APPLICATIONS
Use dual counterbalance HIC’s for controlling loads in bidirectional motion such as wheel motor applications or for cylinders going over center. They are also suitable for use on the boom and dipper cylinder on an excavator.
SPECIFICATIONS |
SCHEMATIC |
|
Rated pressure |
350 bar [5075psi]* |
|
Rated flow at |
266 l/min [70 US gal/min] |
|
22 bar (319 psi ) |
|
|
Leakage |
10 drops/min @ at 70% of |
|
|
crack pressure |
|
Weight |
Aluminum 5.59 kg [12.59 lb] |
|
|
Ductile |
10.68 kg [23.55 lb] |
Pilot ratio |
3.0:1, 4.5:1, 10.0:1 |
|
Cavity |
CIB |
|
*350 bar with steel housing
210 bar with aluminum housing
PERFORMANCE
BC332375678109en-000101 • February 2020 |
CB - 33 |
Counterbalance Valves Technical Information
Dual Counterbalance - Hydraulic Vent
DCB20-HV
DIMENSIONS mm [in]
turn ccw to increase presure setting
turn cw to decrease pressure setting
EXAMPLE CIRCUITS
Bi-directional
Counterbalance DCB20-HV
Counterbalance
with Pressure DCB20-HV
Limiting
ORDERING INFORMATION
BC332375678109en-000101 • February 2020
CB - 34
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