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Flow rate/pressure characteristic

Test conditions

Are functional effects of any cause that result in behaviour of the control that is not suitable for the task. A differentiation is made between: Active errors : Errors that trigger control functions

Assembly option for hydraulic control valves whereby a valve is assembled in each case on a mounting subplate containing up to five ducts and it is possible to bolt them together as required. It ends

Device which generates a linear movement directly. This is the hydraulic cylinder as hydraulic linear motor and the solenoid or electric linear motor in electric drives.

4/3 directional valve with three annular channels in the housing for the three ports A, B and P (Figure D 42) . The 4th port T is to the spring chambers F1 and F2 that are connected together via a con

On continuously adjustable directional valves : Dependency of the load pressure on the input signal with closed working lines around the hydraulic zero (Figure D 73 a) . On continuously adjustable pre

Pressure-limiting valves limit the inlet pressure by opening the outlet to the tank via the function element (which is closed at rest) on reaching the set pressure. This action occurs by opening again

Electro-mechanical , in which an electromagnetic armature moves in the magnetic field of two permanent magnets ( Figure T 14 ). If one side is activated, the magnet rotates in this field, which is tra

In several areas of hydraulic systems, the flammability of the mineral oil constitutes a high risk. The group of flame-resistant hydraulic fluids is comprised of water-bearing emulsions ( HFA and HFB