Searched for "fluid's".

which work according to the hydrodynamic principle, i.e. in which the velocity element of the flowing fluid is decisive. For pumps, these are the centrifugal pumps and the turbines, hydrodynamic (Foettinger)

Biologically degradable, i.e. environmentally-friendly hydraulic fluid. based on natural base oils. Besides the desired environmentally-friendly properties, rapeseed oil displays properties such as poor

until the pressure in the chamber has dropped to a specific value (see Energy content of hydraulic fluid ).

The operating pressure corresponds to the actual pressure (DIN 24 312). See also pressure ranges in fluid technology.

Volume counter (not a flow rate counter !) based on two oval rotors with special teeth which cause the fluid flow to rotate ( Figure O 12 ). The flow sensor with oval rotor assembly operates with great precision

seal of a double acting hydraulic cylinder, in the case of a poorly designed piston seal, pressure fluid can flow from one side of the piston to another in a short time, normally if very rapid pressure changes

Resistance, which a fluid subject to friction must overcome when flowing through and valves . It is noticeable in the form of a pressure drop ( pressure loss ). The flow resistance comprises frictional

The pressure stages to be used in fluid technology are defined in DIN 24 312. They are taken from the preferred figure series R5 or R10 (Table D 3) . From these pressures a selection is defined in DIN

will occur. The intake height is dependent on the type of pump and the viscosity of the hydraulic fluid.

rolled (piston) pumps, opens due to the vacuum cased by the reverse pistons and allows hydraulic fluid to flow through afterwards. In the lower reversal point of the piston, the suction valve is once again