Danfoss VCB12-CN-DL Technical Information

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
Rated pressure	350 bar [5075 psi]*
Rated flow at	140 l/min [37 US gal/min]
22 bar (319 psi )
Weight	2.92 kg [6.45 lb]
Pilot ratio	4.7:1, 5.9:1, 6.9:1
Cavity	CIB

* 350 bar with steel housing

210 bar with aluminum housing

PERFORMANCE	psi		bar						Pressure drop
						26 cSt [125 SUS] hyd.oil @ 20° C[68°F]
			20
	250
			15									3			2
	200
	150		10
	100		5
	50		0											2					3
	0
				l/min		35			70					105					140
			US gal/min
						10			20					30

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

	VCB12-CN-DL	VCB12-CN-DL
		Counterbalance -
Bi-directional
		Double
Motion Control
		Actuator

ORDERING INFORMATION

CB - 40

BC332375678109en-000101

• February 2020