Pulsation dampeners are your solution to longer lasting pumps and pipe systems. Vane pumps, need to be isolated from high frequency system response by the use of no moving parts WAVEGUARD dampers. For systems where the compatibility of FLEXLON PTFE is required, please see the flexorber range. Where the rpm is low, and an elastomer is known to be compatible, please consider the PIPEHUGGER LP damper range. Air Operated Double ended Diaphragm pump, AODD pumps can transfer liquid as smoothly as a turbine with the right damper. Where plastic is essential use the PIPEGUARD Plastic range. pulsation dampeners solve your pulsation probelems. Where Stainless steel and an elastomer can be used, choose from the PIPEGUARD LP models. For PTFE FLEXFLON compatibility please see the FLEXORBER LP inventory. Gear and lobe pumps work without a whine when connected through an in line muffler. At high frequency use the no moving parts WAVEGUARD.

Pulsation Dampeners are the Interface Between Pumps and Pipe Systems.

Low frequency either the PIPEHUGGERs with synthetic rubber bladder, or for DuPont Teflon the FLEXORBER ranges dampers are ideal. Hose pumps or tube pumps, sometimes called peristaltics, are low frequency devices, they lose their suction side positive spike from shoe or wheel impingement, when used with FLEXTUBE ClearFlow attenuators - See the PUMPGUARD range. For off line single connection Dampers, see PIPEGUARD which can be used to prevent discharge backflow from shoe lift off. Hermetically sealed multiplex sandwich diaphragm pumps are matched with double layer secondary containment sealing tell-tale alert dampeners. Whether for use with the single chamber sealed metering pump, top right, or the multiplex version at the bottom right, if a sealed hazard class pump is required, then a matching FLEXORBER hazard class damper should be chosen. Sealed pump safety, matched by pressure vessel damper safety of the FLEXORBER, for the system is the only safe choice.

ASSOCIATED COMPANIES See Pulsation-Dampeners.com, for your pulsation dampener needs!
Hydrotrole U.S. Div. Fluid Power Accumulators in the Americas	ShockGuard US Div. Pipeline shock/surge Alleviation in the Americas	Liquid Dynamics Intl. Inc. Data Capture, Analysis, Diagnostic Computer, Modeling, & Software in the Americas	PulseGuard Ltd. Quick overview, A Small PulseGuard site in Europe
Hydrotrole Ltd. Fluid Power Accumulators in Europe	ShockGuard Ltd. Pipeline shock/surge Alleviation in Europe	Liquid Dynamics Intl. Ltd. Data Capture, Analysis, Diagnostic Computer, Modeling, & Software in Europe	Flow-Guard Quick overview of Flow Fuses

SITE MAP OF PULSATION-SHOCK.COM/PULSATION_DAMPENING

The Below Visual Layout is simply to show the availability offered. There are 4,024 links.
Therefore we highly recommend that you print yourself out a site map PRINT OUT

accumul_hyd_com		shock_guard_ com	pulsation_damping			liquid_ dynamics _com
					select _smooth _perctg	select_ pump _aplicat
4_hot_cold	4_waste_water	4_food_drug	pulse_damper_types
					flow_fluctuation _or_pressure _pulsation
no_moving_parts	bag_bladr_tube liquid _in_ bladr gas _in_ bag flex _tube		flexflon_ptfe_diaphragm low _pressure hp_with _hazard_alert
	lp_flow_thru hp_flow_thru hp_all_ss lp_all_ss all_plastic				find_pump_f
	Z Y X W V		U T S		calc _damper _volm
centri- fugal multiplex _a614 vane _gear _lobe packd _plungr presur _pulse injection _test suction _sys aodd _and_vlp hose _pumps lp_dosing _ptfe hp_metrng _1615					select _pipe _method
					etc

Where secondary containment and multilayer FLEXFLON PTFE are not necessary, then for flow fluctuation removal and an elastomer membrane a link to the PIPEGUARD price and dimensions list is provided. Where the need is pressure pulsation reduction and flow fluctuation smoothness then the elastomer bladder flow through HIPEHUGGER is your choice. Injection systems have the decompression shock removed by flow through interceptors, link to the duplex (2205, F-51, UNS S31803) and super duplex (2507, S32750) all stainless PIPEGUARD high pressure and super pressure range price and dimension page. Quintuplex and septuplex pumps, bottom left, use a no foam, no gas bag, no moving parts, spherical flow through damper. The flow fluctuation volume is small, the frequency is high. Pressure wave interception is what you need more than volume compensation. Dosing pumps use in place flushable dampfners. A print out of the site map will show you all your options and which one to take. Liquid in the bladder, cushion gas in the shell. Large diameter ratio to connection diameter kills the pressure waves. Low pressure and flow through types too, stop suction side negative pressure waves from breaking the supply column into slugs. No moving parts pressure pulse interceptors, cause the pressure transients to have to take multiple flow paths. A pulsation dampener will help with your pulsation dampening, cause pulsation dampeners, or pulsation dampers, deter pump pulsation, flow fluctuation, pressure pulsation, flow smoothing. Pulsation damping with a pulsation damper have a pulse damping or pulse dampening way of using any of the following: a pulse damper, pulse dampener, pulse dampeners, cavitation damper, cavitation dampers, cavitation dampener, cavitation dampeners, flow fluctuation reduction, flow fluctuation reducers, acoustic attenuators, pulsation attenuators, pulse attenuation, pulse attenuators, reduce acceleration head loss, acceleration head loss preventors, acceleration head loss reduction, cavitation damper. The transients have their base time stretched and the pressure amplitude falls . Prevent amplification and resonance. Dampers with Flexflon modified PTFE diaphragms have 4 times the permeability life of prior designs and cost half the price. Gas in the bag type flow fluctuation reducers act as an accumulator of the peak flow and deliver their stored volume back to the system when the flow velocity otherwise falls. All stainless 316 or duplex stainless & superduplex models available to 30,000psi. Clearflow flextube type for slurries Centrifugal pumps need protection against pipe system startup surge generation. Use your PulseGuard, pulsation dampener.

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An ascii outline of where to go with html links:
1. PULSATION_DAMPING
SELECT_SMOOTH goto 2. to find the size you need
PULSE_DAMPER_TYPES goto A. to find the type you need
SELECT_PUMP_APLICAT goto B. to find your pump characteristics
--------------------------------
2. RESIDUAL FLUCTUATION ALLOWED depends on your system, don't over specify.
goto FLOW_FLUCTUATION_OR_PRESSURE_PULSATION
goto 3. FIND_PUMP_F
goto 4. CALC_DAMPER_VOLUME
goto 5. SELECT_PIPE_METHOD
Start damper type selection goto A.
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A. FLOW THROUGH PRESSURE PULSATION INTERCEPTORS & FLOW FLUCTUATION SMOOTHERS
-------------------------------
6. FLEXFLON_PTFE_DIAPHRAGM pulse damping with Virgin PTFE or MTFE

goto HP_WITH_HAZARD_ALERT "FLO"
2 layer diaphragm & 2ndry containment
FLEXORBER HP

-OR- goto LOW_PRESSURE "SOG"
4x life at 50% cost, 8 fold better
FLEXORBER LP
--------------------------------
7. BAG_BLADR_TUBE elastomer part dampers EP, Buna N, Fluoro

goto LIQUID_IN_BLADR "HUG"
Liquid in the bladder N2 in the shell
PIPEHUGGER

-OR- goto GAS_IN_BAG "PIG"
N2 in the balloon liquid contacts shell
PIPEGUARD

-OR- goto FLEX_TUBE "PUG"
for slurries and above 2" suction sys.
PUMPGUARD
--------------------------------
8. NO_MOVING_PARTS "Solid State" pressure pulsation dampers

gofor WAG_CER WAG
ceramic balls disperse the pressure transients
WAVEGUARD CERAMIC

gofor WAG_HO WAG
multi orifice and multi chamber + delt P & liquid compressibility
WAVEGUARD HELMHOLTZ

gofor CAG CAVGD
vertical column to provide head, with bubble collector tube
CAVGUARD

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B. A DOZEN DIFFERENT PUMP SYSTEMS, different volumetric and frequency needs
--------------------------------

goto Hz.
calculate the base cyclic forcing frequency

goto FLOW
calculate the flow fluctuation volume

goto Hz_Vol
determine whether Dampener will be Solid State or Volumetric
-----------------------------------------

THEN GO BELOW FOR EXAMPLES AND TYPICAL INSTALLATIONS,
OR GO back TO "A"
-----------------------------------------

goto SUCTION_SYS for suction systems
Preventing cavitation and acceleration head loss, suction pulses

goto PRESUR_PULSE for discharge systems
Intercepting pressure pulsation waves (traveling at 3000 mph)

goto CENTRIFUGAL for resonance & shaft shake
Start up surge, shutdown back flow shock & hammer, resonant pulsation

goto VANE_GEAR_LOBE smooth flow but high Hz.
Small displacement per vane, tooth, lobe, but high frequency pulsation

goto MULTIPLEX_A614
Triplex, quintuplex, septuplex reciprocating pump acoustic pulsation

goto PACKD_PLUNGR accurate metering
The highest efficiency pumps least lost volume easiest to dampen

goto AODD_&_VLP LP flow fluctuation smoothing
The volume of the pulse with an AODD depends on how quickly the
return stroke begins, critical need is a large air supply

goto HOSE_PUMPS low pressure and large pipe
For sludge and slurry, catch the pulse spike from shoe hitting tube
on discharge back fill the void from shoe or roller lift off.

goto LP_DOSING_PTFE lost motion flow control
Solenoid, cam, back stroke volume limiting, the flow begins
with a squirt and the highest pressure pulse in the cycle

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.
The Smooth Flow People

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