Return line filter
Filter to be installed into the return line of a system. The housing is designed for pressures of around 20 to 30 bar. Return line filters – regardless of the size of the pump flow rate – must be sele
Nominal pressure
Pressure used to describe or identify a device or system. It is less than or equal to the calculated pressure , DIN 24 312. The nominal pressure corresponds to the nominal value as per DIN 40 200. The
Internal gear pump
Pump with two gear wheels in most cases whose outer (ring gear) has teeth on the inside. The inner sprocket is smaller. The fluid is conveyed in the spaces between the gaps in the teeth of the two gea
Error limits of a measuring instrument
Agreed maximum magnitudes for positive or negative deviations on the indication (output) from measuring devices . Error limits are pre-defined essentially in relation to systematic deviations from the
Input inductance
Value of the electrical inductance for the input signal under defined conditions (frequency, armature position, type of circuit) (E DIN 24 311).
Flow rate amplification
States the percentage-based relationship between the electrical input signal and the hydraulic (here flow rate ) at zero load pressure in the range of the primarily linear characteristic (cf. transfer
Slider
Another term for the control piston (control spool) of a valve. The expression is also used for directional valves with valve control spools ().
Pipe rupture protection
Valve which protects the lines to a cylinder secured so that it can no longer make any undesired or hazardous movement in the event that the supply line breaks.Burst pipe protection is mainly used in
Bleeding
In hydraulic fluid removal of the air carried and separated out. This must take place at the highest point with the aid of bleed screws or bleed valves.
Volume (bulk) filters
Filter, which separates contaminations primarily on the inside (bulk) of the filtering material. Filter elements with several layers are used for this and are made of metal powder (sintered filer or f