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Graphically represented mutual dependency between two operating variables, with one or more variable parameters being used as parameters. This kind of performance map can provide a complete overview o

Increasing a value by 1, i.e. counting up to higher values in individual steps.

Non-standardised short term used for hydraulic oils with additives designed to provide protection against ageing, corrosion and wear, as well as an additive with emulsifying (dispersing) and detergent

The control element is a flat plate that moves in the housing. Valves with flat slider are primarily used as directional valves.

Throttle valve that due to suitable formation of the control edge (e.g. by means of notches) has very good resolution in the low flow range.

Flow rate coming from the pump, which a hydraulic motor takes on, depending on its displacement volume (geometric displacement). It is calculated as the product of the displacement and the rotation sp

Describes the increase in viscosity of mineral oils given increasing pressure . This increase gets bigger as the nominal viscosity increases (= viscosity/pressure characteristic at +50°C or recently +

Change of the over time during the switching process. In addition to the design, the switching behaviour of devices depends primarily on the method of operation of the switching element . In the case

Hysteresis for pressure valves resulting from springs, the mechanical friction associated with the piston and flow forces. It ensures the closing pressure for a pressure valve is always lower than the

Valve actuation is performed by means of a control impulse. Here, the switching time depends on whether direct or indirect actuation is involved, with switching being far shorter for the latter (a few