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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

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

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

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

Flow in m3/h of water at +5 to +30°C passing through a device (valve) in a given direction based on a pressure drop of 1 bar and an upstream pressure of 6 bar. The practical benefits of the Kv value (

Recording and acquiring or saving measured results using digital devices. As almost all measured variables change in an analogue manner, it is necessary to divide them up into equal size sections also

Relationship between the piston area A K of a differential piston and the annular area A{P} R (Figure K 15):

Pressure which results when an external force acts on the cylinder/motor.

Resistance of pressure hoses to pressure impulses. This is used — based on the max. permissible operating pressure — to determine the number of impulses required before the hose fails.

Short term for hydraulic oils with additives designed to provide protection against ageing, corrosion and wear and with viscosity improvement additives (Figure H 10) ; viscosity index: type 1: 125 to