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Pulsation Dampeners for Amplitude of Pressure Wave Spikes

Check the amplitude of any highly excitational pressure spikes in pump literature aka "Velocity Jump" causing "Joukowsky shock"

You can reduce Velocity Jump / Joukowsky shock to a generally insignificant figure in 4 steps:
1. Select pulsation dampeners with an ID 12 times the diameter of the inlet connection.
2. Have an outlet 1/2 the area of the inlet.
3. Increase the volume by 3 x the in-efficiency.
4. Decrease the cushion pre-fill pressure proportionately to the volume increase, from 80% of system pressure to as low as 50%.

pressure wave spikes

Liquid Dynamics Pulsation Dampeners Information For more information about this and other pressure pulsation related topics go to the Liquid Dynamics web site.

Pulsation Dampeners - Snubbing, Surge Suppression and Shock Absorbing
Hydropneumatic Device for Acceleration Head Pulsation Prevention
No Moving Parts and Hydropneumatic Pulsation Filters
Flow Fluctuation / Suction Systems - Negative Pressure Pulsation / Supply Lines
Pressure Pulsation Pulse Signatures
Pressure Pulsation Dampeners for Transients and their Interception
Pulsation Dampeners for Amplitude of Pressure Wave Spikes
Pulsation Dampeners and Pump Vendor Responsibilities
Acceleration Head / Pressure that a System Could Create
Pulsation Dampening - Flow Smoothness Requirements
Pulsation Dampener Quick Release Manifolds / Flow Divider Manifolds



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