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
with Various PULSEGUARD Dampers

Constant pressure and flow with packed plunger pumps

The high volumetric efficiency of the packed plunger pump, with minimum dead volume in the pump head,
(unlike diaphragm head pumps) the level of pulsation is already small, and lack of lost motion reduces
pressure shock generation, small flow through dampers kill what remains
When applying plunger pumps at 1,000psi to 15,000psi, pressure pulsation interception is advisable.

Dampeners: all items shown are lowest cost, standard off the shelf inventory items.
All: In place flushable, constant temperature, non sedimenting.
PipeHugger With liquid in the elastomer bladder, and stainless wetted parts.
(2) Flexorber LDi Flexflon, PTFE, or EIDP Teflon diaphragms, & stainless liquid chamber.
(3) PipeGuard Gas in the bag, and an all stainless pressure vessel.

Recommended Comparisons, To COSTS of Packed Plunger Pumps with Pulsation Dampers

photo of schematic
GOTO:- (1) PipeHugger
A small damper close to a pump is far better than a large damper installed remotely.
The general rule is not more than 12 pipe diameters from damper to pump, and always a straight line, or not tighter than a 45 degreesL or a 5D bend.
schematic of plunger pump with HP and LP PipeHuggers
The larger diameter of PipeHugger ensures pressure pulsation dissipation.
Liquid in bladder, gas in drive bonnet enables low cost construction.
HP Flexorber long horn style
"Long Horns" aka TEXAS style connection configuration
Flanged, Hubbed or Screwed
(2) GOTO:- Flexorber Pt Nbr. Flo/HP/TW/--
Available with separate piping base blocks to preserve system integrity during service, and or with heating or cooling jackets.

PTFE compatibility diaphragms are offered in two forms:-
"LDi" FLEXFLON or DuPont virgin Teflon backed with elastomer.
The FLEXFLON appears to have 4 times the life at 50% the cost.
schematic of plnger with HP and LP Flexorbers
HP PipeGuard long horn style
"Long Horns" AKA TEXAS style connection configuration
(3) GOTO:- PipeGuard Pt Nbr. Flo/HP/TW/--
For corrosive environments the complete pressure vessel is manufactured from stainless steel in accordance with ASME VIII code.
The tall slim configuration enables volume at lower cost.
The sacrifice of diameter, is a loss of pressure pulsation damping efficiency.
For other installation options, please see piping configuration page.

"90" New England Style

photo of jacketed pipehugger
(1) Pt. Nbr. Jkt/Peg/TW/-
(2) above may also be Jacketed.

Typically, Jacketed dampers are purchased with system pipes radiating from a separate base block, from which the damper capsule is released by removing 4 bolts, for minimum down time.

jacketed Pipehugger
(1) GOTO:- JACKETED PipeHugger LP
The ability to cool the suction & so reduce the vapor pressure at the same time as removing suction acceleration head loss enables pump to prime, that would otherwise not be able to run at all.


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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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