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Uses the velocity of the flowing medium to rotate a paddle wheel when the flow is in an axial direction ( Figure M 21 ). The turbine rotation speed in such cases is used to measure the passing flow ra

Operating mode whereby a machine is controlled using manually operated valves. These days, the only area where manual operation is still predominant is mobile hydraulics . In addition, the term manual

Describes the state whereby the relationship between two adjustable variables remains constant.

Internal power split ; external power split .

Graphical representation of the load curve for a given load (e.g. a cylinder) over time. The force-time diagram is used when deciding the dimensions for the pump ( Figure K 36 ).

Outline shape of a contact seal . Corresponding to the wide-ranging requirements there are numerous profile shapes that almost all have a sealing edge as a common feature. (Exception, e.g., sealing ri

Value actually associated with a variable at the time under consideration (DIN 19 226).

Pressure within a system or its parts (DIN 24 312).

Also called the apparent dirt holding capacity. Dirt holding capacity is the quantity of test dirt that must be added before a defined differential pressure Δp is reached. In addition to the α-value,

Area of hydraulics in which the devices are controlled electrically (as a rule by means of solenoids, in some circumstances also by control motors). This statement includes in the signal area also ele