PulseGuard Ltd. and Inc.
PulseGuard Ltd. offers pulsation dampers | Please phone 44(0) 161-480-9625
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Fluid Flow Control Animations
Fluid Flow Control Animations

High RPM VANE PUMPS vane symbol

Make a note of this pump's F number, also known as its Flow Fluctuation Figure. Use the F number with the % residual fluctuation required figure from the smoothness shown for each type of application. These two figures, the F figure and the % figure, applied to the size selection formula give you the smallest practicable damper size.
See below for figures

Even these, THE SMOOTHEST of all POSITIVE DISPLACEMENT PUMPS have pressure disturbances, which are normally not important, but when they are connected to piping systems that were not designed, will cause pulsation

The source of the disturbance, that is magnified into pulsation by poor, or no pipe design is, from "X"

Pulsation dampers with no moving parts, and no foam to degrade or clog
The answer, to high frequency low volumetric pulsation, for clean liquids.
The WAVEGUARD, Ball path Disperser
By causing the pressure waves to travel down many paths of different length, the timebase of a transient peak is spread, and so its height is removed.


Go Here to Calculate your VOLUMETRIC & FREQUENCY NEEDS GO HEREforward arrow
Application Story
Power pump with complimenting WaveGuard - WaG
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Click on the picture or below for complimentary Dampers:
WAVEGUARD WaG No Moving Parts Damper

Need a Hand? Take this Step by Step Process to help you choose your perfect fitting damper Start Hereforward arrow

Find the "F" Valve of Your Pump - "F" is a correction Factor on the square of number of displacers.
Example, Centrifugals are intrinsically good - have a high F, Sandwich diaphragm metering pumps have a low F.

F = 3.0

vane pump cross sectional view
A vane pump with 23 vanes, driven at 2,900 rpm, pumps 380 barrels per day
40 Liters x 1000 cm3 per Liter / 23 vanes x 2900 rpm = 0.6 ml displacement
@ 111 Hz.

Find your % residual fluctuation required figure
from the smoothness shown for each type of application.
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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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