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Device which converts the electrical charge associated with a measuring instrument into a voltage signal and amplifies it in accordance with the piezoelectric effect.

Seal type for sealing rotating areas based on a gap seal whereby the pressure energy is dissipated when a suitable surface is formed in the interplay between vortex formation and flow resistance ( Fig

Seal type for sealing rotating areas based on a gap seal whereby the gap length is increased by the contour of the gap assuming a meandering or zigzag pattern ( Figure L 1 ). Labyrinth seals — mainly

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 (

Relationship between the respective (actual) velocity V and the following velocity error Δs (= control deviation ) during positioning. Kv is a measure therefore of velocity amplification in the statio

Cylinders whose stroke is significantly shorter than the piston diameter ( Figure K 41 ). Short stroke cylinders are used in hydraulics for things like tensioning or closing processes.

Ball seated valve : Directional or check valve with a freely moving ball as the blocking element. Excellent in terms of keeping designs simple, but is only suitable for small valve sizes. 2/2-way ball

Oil cooler

Amplification in the and therefore the product of the amplification factors (proportional coefficients) associated with the individual elements (, controlled subsystem , measuring device) in the open

Adjustment equipment for hydraulic pumps which, for a drive with constant rotation speed (e.g. electric motor), restricts the power P as a product of the flow rate Q and pressure p to a maximum value,