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Fluid Flow Control Animations
Fluid Flow Control Animations


2. You then need to calculate your Fluctuation

Take Note:Calculate - Flow per Second / Hz.

= (Pulse x Pulse) / Square of Displacers (e.g. # of Displacers x # of Displacers)

= Fluctuation

3. GO ON to find your Hertz Volume GO TOgo on to calculating your Hertz Volume
Right your answer down.it is important to keep track of your answer


1 = simplex

(Single piston or plunger - may also be pushing oil to move a diaphragm)
2 = duplex (Two plungers etc. - the flow will still come to a halt as one changes over to another)
4 = triplex (Three, now there will be continuous flow, provided the volumetric efficiency is high enough)
6.5 = quadraplex (Four, sounds better. But the problem is that such a low & even number maximizes the chances of resonance, so flow through interception becomes a necessity)
9 = quintuplex (5, Good - overlap even at low volumetric efficiencies)
18 = septuplex (7, Also good, BUT now the number of pulses per second is becoming high. High frequencies may easily match the high frequency of short pipe nodes. If this occurs what ever level of residual forcing pulsation you go down to, the system stands a good chance of amplifying the residual pulsation to a high level.

Return to calculating Hz. to the pumps menu
Return to the beginning of PulseGuard, pulsation dampeners

Selecting Pulsation Dampeners for Different Pump Systems.
Flow through pulsation dampers are at least 3 times more efficient than T off line accumulators.
Dampeners that do, flow goes through, but pressure pulsation does not.
PulseGuard Pulsation DampersThe Smooth Flow People

Call Toll Free 1-888-DAMPERS (326-7377) / See also: Pulsation-Dampeners.com for a pulsation dampener.

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