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Valve that can shut-off the flow in both directions. In fluid technology this valve is implemented in the form of a seated valve or ball valve . The valve is actuated manually, magnetically or using a

hardness. However, it is also affected by the temperature and the degree of exposure to the hydraulic fluid (swelling or shrinkage).

reduce the speed of a piston before the end of its stroke. The damping can be mechanical or using a fluid; a choice can be made between fixed or adjustable ( Damping of cylinder motion ).

Material removal that occurs in hydraulic devices at the points where the hydraulic fluid impacts at high speed. Erosion wear comprises cavitation erosion and particle jet erosion and is material dependent

Device for removing undissolved air (gas) that may be carried in the hydraulic fluid in a hydraulic system . The valve must be fitted at the highest point in the system and can trigger automatically or

The self-tuning of controllers is intended to accelerate difficult and arduous initial settings of fluid technological regulations and thereby reduce a significant disadvantage compared with electrical

Line to feed the hydraulic fluid back to the container after the energy has been transferred. As with the Return line filter it must be designed according to the largest flow rate and not according to

Flow rate , which builds up beneath a seal or guide ring as the fluid sticks on the moved metal surface by adhesion. The drag flow is responsible for the drag flow pressure , but also for leaks in intact

The column of fluid in pipes is elastic and affected by both weight and friction. These characteristics are described in terms of the pipe capacity , the pipe inductance and the flow resistance (effective [...] (effective resistance). The column of fluid represents a homogeneous oscillating system as opposed to a discrete mechanical one. In a system of this kind, variable pressure and flow rate are dependent on both

general, the hydraulic fluid transfers power, energy or force/torque from the prime mover (pump) to the working unit (cylinder or hydraulic motor). Introducing pressurised fluid into cylinders causes the [...] requirements of the working unit. The transferred power results from the factors of pressure and fluid flow. The following are generally used as hydraulic fluids: Hydraulic fluids based on mineral oil