{"id":2892,"date":"2024-03-07T09:16:04","date_gmt":"2024-03-07T08:16:04","guid":{"rendered":"https:\/\/www.bf-hydraulik.com\/encyclopedia\/hydraulic-control-valve\/"},"modified":"2026-04-15T11:54:06","modified_gmt":"2026-04-15T09:54:06","slug":"hydraulic-control-valve","status":"publish","type":"encyclopedia","link":"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-control-valve\/","title":{"rendered":"Hydraulic control valve"},"content":{"rendered":"\t\t
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Hydraulic control valve for function actuation<\/h1>

A hydraulic control valve<\/a> is used in hydraulic systems<\/a> to trigger specific actions and functions. There are automatic and manual control valves<\/a>. Control valves are generally self-returning. <\/p>

Hydraulic systems with controllable actuators<\/h2>

A hydraulic system<\/a> consists of a pump, lines, and actuators that trigger a specific function. Typical actuators are linear motors or hydraulic cylinders, or radial motors. However, a change in pressure or a diversion of the volumetric flow can also result in additional functions. A typical example is triggering pressure valves, closing flaps, etc. <\/p>

The control valve is used to divert the volumetric flow in a targeted manner and route it to a specific point in the hydraulic system<\/a>. <\/p>

Hydraulic control valve: design<\/h3>

A hydraulic control valve<\/a> consists of a hydraulic block with an internal spool or rotary shut-off element, as well as an external actuator. In manual control valves<\/a>, this actuator is designed as a lever. <\/p>

Electromechanical control valves use a spool or a servo motor for this purpose. Both can be integrated easily into a control system of any complexity. From local push-button actuation to remote control via the Internet, all functional options are available today. <\/p>

The complexity and functional scope of control valves are available in a wide range. The spectrum ranges from simple on\/off valves to multi-acting control modules that can direct a volumetric flow in very different directions. <\/p>

A distinction is made between single-acting and multi-acting control valves. Double-acting control valves are particularly widespread. They can be combined into control blocks of any length, enabling a correspondingly wide range of functions in the hydraulic system<\/a>. <\/p>

Hydraulic control valve: applications<\/h3>

Control valves are found in virtually all hydraulic system<\/a>s in which certain areas are to be addressed only in a targeted manner. The commonly used double-acting valves can trigger a function and, through a counter-movement, retract it again. Manually controlled hydraulic cylinders are generally operated in this way: pushing the control lever forward extends the cylinder; pulling it back retracts it again. When the lever is released, an internal spring returns the lever to the center and blocks the volumetric flow. <\/p>

Control valves are often used, for example, in construction machinery. The operation of excavators, tracked vehicles, or dumpers is generally carried out with the aid of control valves. Here, 4-way valves are frequently used due to their compact design and wide functional scope. <\/p>

In addition to forward and backward movement, these valves also enable hydraulic actuators to be controlled via a lateral movement. Furthermore, 4-way valves can trigger two functions simultaneously through diagonal actuation. The 4-way valves in construction vehicles are often supplemented by electrical push-buttons and switches. This provides the operator with a particularly wide range of functions without having to take their hands off the control levers. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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