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flow path in a device to which pipes for the transport of the hydraulic fluid to or from the device can be connected. As the type of port has a major effect on how the installation is assembled, ports on

with a pre-defined rate of change on the input signal. To depict this situation the output signal xa can be plotted in relation to the rate of rise of the input signal xe (Figure A 22). (DIN 19 226)

temperature difference with the expansion coefficient βT. For hydraulic oil, the expansion coefficient can be assumed to be 0.7*10-3 1/K. Calculate the volume increase on temperature rise directly and easily

linking of independent input information with machine functions. For this reason functional controls can be very simple or very complex depending on the task.

Friction that is produced when two surfaces rub against each other. Friction can vary very significantly in fluid technology, depending on Which seal material is used, Which seal shape is used, The magnitude

electrically. For electrical position switches a differentiation is made between contact switches that can be actuated mechanically or contactlessly (e.g. reed switches) and contactless position sensors that

integrated in a device with a standard electrical with zero and end point comparison elements, which can be adjusted externally and issues a standard output signal from 0 to 20 mA (or 0.2 to 1 bar standard

desired value. ( Figure T 6 ). Flow dividers based on displacement units (e.g. piston or gear motors) can be used to produce higher indexing accuracies than valves.

condition for the upstream load, the term sequence control is used. The sequence control of actuators can be controlled hydraulically with sequential valves or electrically with process-dependent signal elements

progression is assigned to an equivalent, step-shaped progression. The resolution of the representation can never be as fine as the variable e (Figure D 30) .