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Difference between two pressures p 1 and p 2 : If the pressure difference is the measured variable it is called the differential pressure p 1,2 (DIN 24 312).

Location in a device at which the flow cross-section is constricted and therefore a throttle effect (increase in resistance) occurs.

Measure of the decay of an oscillation in a delay element of second order. D = 0 signifies an undamped continuous oscillation and D = 1 an aperiodic oscillation (Figure D 5). For reasons related to co

The European Committee for Oil Hydraulics and Pneumatics was founded in 1962. Over 700 businesses from 13 European countries are represented in CETOP by the national fluid technology associations. The

Workflow control with step enabling conditions that are only dependent on signals from the controlled system (process) (DIN 19 237). The process-dependent workflow control – previously known as "seque

General : A part of a program which can be delimited in terms of its allotted task or structure. A control : Consequence associated with control instructions for a self-contained application-based fun

Refers to the shift, expressed as the angle φ, between two sinusoidal variables or signals with the same angular frequency ω such as the input and for a transfer element . The phase shift is described

Air bubbles rising up from the oil in the container may form a surface foam which can have a disruptive effect within the hydraulic system. Since surface foam causes cavitation in pumps, it must not b

Deviates from the normal sequence of functions for an operating unit or machine by switching it to a safe state via the shortest possible route. This may mean a sudden stoppage, but may also include s

1. Subsequent heat treatment (tempering) of certain elastomers whereby optimal characteristics do not emerge until the associated final linking occurs. 2. Unwelcome additional linking under the influe