PulseGuard Ltd. and Inc.
PulseGuard Ltd. offers pulsation dampers | Please phone 44(0) 161-480-9625
We have people not voicemail | Call toll free UK 08080-567-7423
Fluid Flow Control Animations
Fluid Flow Control Animations

MULTIPLEX DIAPHRAGM PUMP multiplex diaphragm 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


for Diaphragm Metering Pumps GO HEREforward arrow
to Calculate your VOLUMETRIC & FREQUENCY NEEDS GO HEREforward arrow
to complimenting Flexorber LP - SoG GO HEREforward arrow

Click on the picture or below for complimentary Dampers:
Flexorber LP SoG Low Pressure "Flexflon" Damper

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

sketch multiplex diaphragm with SoG

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 = 0.6

multiplex diaphragm pump cross sectional view
Triplex Quad and Quin versions of this type of pump, particularly when used at pressures above 100bar (1500psi), have a phenomenal tendency to create huge pressure disturbances, and high frequencies from interaction within the manifold. The F factor of 0.5 is stated to cause additional damper size to allow for the greater level of pulsation that might not be expected. Special OCTOPUSSY replacements for the pump manufacturers interconnection manifold are available.

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

Return to the top
Return to More Pumps to more pumps

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.

Fluid Flow Control Fluid-Flow-Control.com The Fluid Flow Control Source Pumps Accumulators Filters Dampers Heat Exchangers Valves Mixers P.I. / Pressure Indicators Controls Meters Vessels