PulseGuard
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 FREQUENCY & Medium H.F. PUMPS and PULSEGUARD Dampers
VANE, GEAR & LOBE

Low Pressure High Frequency, Number of Displacers x RPM / 60 = Hertz
TECHNICAL & INSTALLATIONS

Even these, THE SMOOTHEST of all POSITIVE DISPLACEMENT PUMPS have pressure disturbance,
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 piping design, is from HERE:
GO TO Vane Pump Page - color schematic connected to a no moving parts, no bladder to gas up, for foam to degrade, WaveGuard Cer.
Complimentary pages
GO TO Gear Pump Page - color schematic connected to a no moving parts, no bladder to gas up, for foam to degrade, WaveGuard H.O.
Complimentary pages
GO TO Lobe Pump Page - color schematic connected to a no moving parts, no bladder to gas up, for foam to degrade, WaveGuard H.O.
Complimentary pages
The very last point, at the end of the port slot, as the vane sweeps over it, a high pressure "blip" occurs.
The final full "meshing" of the gear tooth tries to compress some almost totally trapped liquid, to a very high pressure. The decompression escapes back through the gear tolerance gap, that makes a pressure spike
Lobes nest into each other so finely that each makes a squirt from the valley between the lobes. The squirt may be measured as a "soft" shock.
Pipeline Surge Arrestors and Alleviators For Start-up Surge & Shut Down Reflux Shock GO TO ShockGuard
Hydraulic Accumulators For Fluid Power Accumulators GO TO Hydrotrole

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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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