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1 definition by Alphonso d'Morte

 
1.
A dampner is a hydraulic device used to reduce pulsations in a hydraulic system.
This differs from a damper which is a hydraulic device used to damp vibrations in a physical system that the hydraulics are connected to.
A Pulsation Dampner is used in a piping system, generally adjacent to the source of the flow or pressure disturbance, which is typically a modulating element like a pump or a flow control valve.
by Alphonso d'Morte April 03, 2013