Pilottipainetta

Pilottipainetta is a Finnish term that translates to "pilot pressure" or "pilot control pressure." It refers to a type of hydraulic control system where a small, low-pressure hydraulic signal is used to operate a larger, higher-pressure valve or actuator. This pilot pressure is generated by a pilot valve, which is typically a manually operated spool valve or a solenoid-operated valve.

In a pilottipainetta system, the pilot valve directs the low-pressure hydraulic fluid to either one side of a main control valve or the other. This action shifts the main control valve, which in turn controls the flow of high-pressure fluid to a hydraulic cylinder or motor. The advantage of this system is that it allows for precise control of heavy-duty hydraulic components with minimal effort from the operator or control system.

Pilottipainetta systems are commonly found in heavy machinery, such as excavators, cranes, and agricultural equipment, as well as in industrial hydraulic applications. They enable smooth and responsive operation of powerful hydraulic functions. The pilot system can be designed to be open-center (where fluid flows back to the tank when no pilot pressure is applied) or closed-center (where the main valve remains in position when pilot pressure is removed). The selection depends on the specific application requirements for control and efficiency.