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Filter element , which is replaced by a new element after a certain operating time or at a given flow resistance. The contaminated filter element must be disposed of in an environmentally-friendly man

Influencing a prescribed setpoint to improve the pilot control behaviour in . Example: Measures to limit the acceleration of a system or attach a preliminary filter.

All measures which a manufacturer of hydraulic pumps can take to keep the amount of noise generated as low as possible. Alternative: secondary noise reduction measures

Energy stored in a pressure fluid compressed at the pressure p. The storage of energy within a volume of gas or fluid as a result of pressure is comparable to the storage of energy when a mechanical s

Feature on hydraulic pumps of piston and vane design that changes the delivery flow in accordance with an input variable. On the pump this is a distance s that can be specified in various ways (Figure

For the control movements of a pilot-controlled valve the necessary pressure fluid is drawn from the same circuit. For this reason a separate control oil circuit is not necessary. As a rule, however,

Difference between the opening and closing pressure for pressure-limiting valves (Figure S 15). It is created by the mechanical friction of the closing element, flow forces and the spring. It means th

Position assumed by the moving parts of a valve when the actuation energy is switched off ( centre position ).

Refers to the power produced by a flow rate Q at a pressure difference Δp: The theoretical hydrostatic power at the output side ignores any volumetric losses and hydromechanical losses. The effective

If the measured result is a function of one or more measured values , then the error on the measured result can be determined based on the law of error propagation . It describes the propagation of th