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As almost all measured variables in fluid technology change in an analogue manner, they must first be divided up into equal size sections (steps) for digital measured value acquisition. This action can

friction, to change the flow rate inside a pipe. It is based on the mass inertia associated with the fluid. The following equation can be written for the change in flow rate dQ/dt, based on a given pressure

device or a system (DIN 24 312). Self-priming pumps generate a negative pressure during priming if the fluid feed height is not positive. Min. and max. inlet pressure are dependent on the type of pump. On h

Mechanical connection between the moving parts of a fluid power control device and the moving part of the device to be controlled for the purpose of . Example: Two stage servo valve with flapper-nozzle

Cylinder in which the fluid pressure for the forward stroke only acts in one and the same direction ( ISO 1219-1 ). The piston can be returned by a spring, the inherent weight of the piston or external

generally higher pressures (of around 100 bar and above). Given the relatively low compressibility of the fluid and the low weight of a piston, hydraulic cylinders offer high dynamic performance (generally >600 [...] Hydraulic cylinder with piston : The mechanical force is generated by the action of the hydraulic fluid on a piston. With this approach, a single cylinder is able to apply forces ranging from just a few

perpendicular to the drive axis. They can be subjected to pressure from the inside or outside by pressure fluid and are, amongst other things, suitable for high constant pressures . Pressurised from the inside [...] The pistons in the fixed cylinder block are moved by an eccenter on the drive shaft. The hydraulic fluid flow is generally controlled by suction and pressure control valves ( Figure R 5 ). Another concept

the compressive force will be balanced out by the opposing force from the internal friction of the fluid resulting from its viscosity . The relationship between flow rate and pressure difference is a linear

HWBF hydraulic fluid where any elements to be mixed into the medium in order, for example, to improve lubricity and increase corrosion protection are added as very small droplets. Micro-emulsions are

Viscosity of a hydraulic fluid at a defined temperature. This used to be +50°C according to DIN 51 502 and has been +40°C for a number of years now according to ISO 3448 (DIN 51 519). It is essential therefore