VBCD SE A Series Single Overcenter Valves

Port sizes: From BSP 1/4’’ to BSP 1’’
Max. flow: From 25 liter/min up to 150 liter/min
Max. pressure: 350 bar

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Overcenter valves have great importance in hydraulic systems and have following features:

Load holding: The overcenter valve prevents the movement of a load when the directional valve is in the neutral position, permitting the use of open center directional valves and negating leakage past the spool of closed center directional valves.

Load control: The overcenter valve prevents the actuator running ahead of the pump due to the load-induced energy, thereby eliminating cavitation in the actuator and loss of control.

Load safety: In the case of hose failure, an overcenter valve mounted onto or into a cylinder will prevent uncontrolled movement of the load. When a cylinder is used in a boom, as in a crane, then hose failure protection is vital as the loss of load control could cause damage to people or property.

These valves are used where there is vital importance in the system.

VBCD SE A series are used to control actuator’s movement and block in one direction. Pressure is adjustable and sensitive. They can be used on crane booms.

Code Type Pilot ratio Max. flow
Max. pressure
V0382 VBCD 1/4” SE A 1:4.5 25 350
V0392 VBCD 3/8” SE A 1:4.5 40 350
V0412 VBCD 1/2” SE A 1:4.5 60 350
V0419 VBCD 3/4” SE A 1:5.5 100 350
V0417 VBCD 1” SE A 1:5.5 150 350
* Standard setting is 320 bar

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