Overcenter valve for vbcd 3 4 de a 100l 350bar ohm

HYDRAULIC VALVE OVERCENTER 'LOCK' VBCD 3/4' DE-ADO DOUBLE-ACTING CYLINDER Production:

Original Italian product of the Oleodinamica Marchesini brand, symbol: VBCD 3/4' DE-A, 1.35.18.120

Application:

It is widely used in hydraulic systems in agriculture, horticulture, forestry, construction and broadly understood industry.

Principle of operation:

Valve ' overcenter' is a combination of a typical actuator lock (VBPSE) with an overflow valve (VMP). It is used to block the movement of the actuator piston rod in both directions. The movement of the actuator in the opposite direction is not secured. It ensures stabilization of the position of the piston rod when we do not control the distributor and large forces act on the actuator.

The valve lock stops working when we start controlling the hydraulic distributor or when the forces acting on the actuator are too high and, consequently, , the pressure set on the valve will be exceeded.

The valve can be used as a brake and blocking the rotation of the hydraulic motor. When we stop controlling the engine, the valve, without exposing the engine and the distributor to damage, will gradually brake the engine and then protect it against free rotation. The valve is able to brake and secure only one direction of rotation.

Connection:

Connect V1 and V2 to the supply lines, e.g. sections in a hydraulic distributor. Connect C1 and C2 to the receiver, e.g. a double-acting actuator.

The flow from V1 to C1 and from V2 to C2 is completely blocked when there is no pressure on V1 and V2. The flow from V1 to C1 and from V2 to C2 opens when pressure is applied to V1 or V2.

Technical data:

Maximum flow: 100 l/min

Number of hydraulic holes in the body: 4

Internal threads in the body: 3/4'' [BSP]

Body material: galvanized steel

Permissible maximum pressure: 350 bar

Standard setting of overflow valves: 320 bar

Weight: 3,800 kg

Temperature range and oil type:

Permissible ambient temperature : -40 C to +60 C

Permissible oil temperature: -15 C to +80 C

Oil type: Mineral oil-based hydraulic oil

Diagram hydraulic valve VBCD DE-A (photo):