Counterbalance Valves Technical Information
Dual Counterbalance - Atmospheric Vent
VCB12-CN-DL
OPERATION
The VCB12-CN-DL is a dual counterbalance HIC, 12-size metric, nose to nose design with atmoshperic vent. This catalog HIC allows free flow from the V ports 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
Atmospherically vented valves are applied when it is not practical to connect a separate vent line to the tank. Use dual counterbalance HIC’s for controlling loads in bidirectional motion such as wheel motor applications or for cylinders going over center.
SPECIFICATIONS |
SCHEMATIC |
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Rated pressure |
350 bar [5075 psi]* |
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Rated flow at |
140 l/min [37 US gal/min] |
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22 bar (319 psi ) |
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Weight |
2.92 kg [6.45 lb] |
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Pilot ratio |
4.7:1, 5.9:1, 6.9:1 |
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Cavity |
CIB |
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* 350 bar with steel housing
210 bar with aluminum housing
PERFORMANCE |
psi |
bar |
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Pressure drop |
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26 cSt [125 SUS] hyd.oil @ 20° C[68°F] |
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20 |
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250 |
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15 |
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3 |
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2 |
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200 |
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150 |
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10 |
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100 |
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5 |
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50 |
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0 |
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2 |
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l/min |
35 |
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70 |
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105 |
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140 |
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US gal/min |
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10 |
20 |
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30 |
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BC332375678109en-000101 • February 2020 |
CB - 39 |
Counterbalance Valves Technical Information
Dual Counterbalance - Atmospheric Vent
VCB12-CN-DL
DIMENSIONS mm [in]
turn cw to increase pressure setting turn ccw to decrease pressure setting
EXAMPLE CIRCUITS
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VCB12-CN-DL |
VCB12-CN-DL |
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Counterbalance - |
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Bi-directional |
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Double |
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Motion Control |
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Actuator |
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ORDERING INFORMATION
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CB - 40 |
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BC332375678109en-000101 |
• February 2020 |
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