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Fluids have the characteristic of dissolving certain amounts of gases. In mineral oil this ability increases linearly with pressure up to approx. 300 bar. Dalton's law states: V G = dissolved gas volu

Gas pressure that is applied to a fluid vessel with or without separator. On hydraulic accumulators the gas filling pressure corresponds to the precharge pressure. Example: hydropneumatic accumulator

Hydraulic accumulator that uses a gas as the medium for applying a load to the hydraulic fluid (air for accumulators for water hydraulics , nitrogen for oil accumulators). As a consequence of the gas

Types of mounting of cylinders

Links the function commands provided by the programmed control with the feedback from the sensors in accordance with the logical instructions for control signals. This means, e.g., the linking of inde

according to DIN 40 719 Problem-oriented depiction of the functions of the signal circuit in a control , independent of the type or equipment used, the line routing, the installation location and the

according to VDI 3260 Graphic description of the movement sequence of hydraulic systems from which the individual steps and their sequence for a switching cycle are defined, as can be seen in (Figure

Directional valve with a second tank connection. This design was very popular for a long time, as on the one hand it was possible to place different loads on the two connections and on the other hand

Directional valve with five annular channels in the housing for ports A, B, P and T. The spring chambers F 1 and F 2 remain outside the control area of the valve and can have a dedicated drain port (F

Piloted check valve that is used to fill the cylinder chamber behind a piston moving rapidly under its own weight or with a piston for rapid traverse with unpressurised oil from the tank. The high vel