Hakuteksti "*".

This covers in terms of hydraulics the range from around 60 to 250 bar.

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

Control system on which the setpoint remains unchanged over an extended period apart from occasional adjustments (according to DIN 19 226). The primary task of such a feedback control is to regulate o

On continuously adjustable directional valves : The flow depends on the magnitude of the pressure drop assumed at the control edges as well as the magnitude of the opening cross-section and with it th

with auxiliary energy, which amplifies the power. Example: Pneumatic pressure amplifier, electrical amplifier, for example with a signal voltage at the input and a signal current at the output with a

Characterises the transient response of a linear system in the frequency range. It is independent on the type of system excitation, i.e. it is irrelevant whether a system is excited by a periodic or t

Valve behaviour