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Pressure transducer that can measure the absolute pressure . For this purpose the side opposite the pressure to be measured is hermetically sealed as a reference chamber (e.g. with a glass plate or gl

Device that indicates the absolute pressure at a measuring point in a hydraulic fluid, referred to a perfect vacuum.

Characteristic of a hydraulic fluid to separate from contamination by means of rising (air) or sinking (solids). Air separation capability: Characterises the ability of a hydraulic fluid to separate o

Device for separating small particles of dirt from the hydraulic fluid based on other particle characteristics apart from the particle size.

The cumulative efficiency of a filter describes how effective a filter is in retaining solid particles. According to ISO 4572 it is defined by ε x = filter cumulative efficiency for particles larger t

Pressure valve that opens the drain if the pilot pressure exceeds a value defined by the adjusting spring. An unloading valve can also be used as a pump idle circulation valve .

Intermittent duty is one of the other Nominal mode of operation denoted in the international standard IEC 60034-1. Hydraulic power packs work in intermittent operation if they are switched on and off

Resistance of a seal material to mechanical abrasion. The abrasion resistance depends largely on the material and its hardness. However, it is also affected by the temperature and the degree of exposu

Time that a variable pump requires to adjust from the max. flow rate Q max to a flow rate of zero. In general this time is shorter than the on-stroke time .

Signal, which transfers a certain result of a processing unit to another processing unit. It is a case of: parallel transmission if the transfer signals are passed on simultaneously and parallel to th