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!

Hydraulic Accumulators
Hydrotrole U.S.
Div.

Fluid Power
Accumulators
in the Americas
Shock and Surge Alleviators
ShockGuard
US Div.

Pipeline shock/surge Alleviation
in the Americas
System Pulsation and Vibration Analysis
Liquid Dynamics
Intl. Inc.

Data Capture, Analysis,
Diagnostic Computer,
Modeling, & Software
in the Americas
Pulsation Dampeners
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
to such folders arrowlineto such folders arrow
liquid_
dynamics
_com
line
 

to such folders arrow
select
_smooth
_perctg

to such folders arrow
select_
pump
_aplicat
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4_hot_cold
to such folders arrow
4_waste_water
to such folders arrow
4_food_drug

pulse_damper_types
to such folders arrow
 
line
to such folders arrow
flow_fluctuation
_or_pressure
_pulsation
to such folders arrow
to such folders arrow
no_moving_parts
to such folders arrow
bag_bladr_tube
to such folders arrowto such folders arrow to such folders arrow
liquid
_in_
bladr
gas
_in_
bag
flex
_tube
to such folders arrow
to such folders arrow
flexflon_ptfe_diaphragm
to such folders arrowto such folders arrow
low
_pressure
hp_with
_hazard_alert
 
to such folders arrow
lp_flow_thru
to such folders arrow
hp_flow_thru
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hp_all_ss
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lp_all_ss
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all_plastic
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find_pump_f
 
line
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Z
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Y
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X
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W
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V
line
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U
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T
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S
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calc
_damper
_volm
line
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centri-
fugal
to such folders arrow
multiplex
_a614
to such folders arrow
vane
_gear
_lobe
to such folders arrow
packd
_plungr
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presur
_pulse
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injection
_test
to such folders arrow
suction
_sys
to such folders arrow
aodd
_and_vlp
to such folders arrow
hose
_pumps
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lp_dosing
_ptfe
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hp_metrng
_1615
to such folders arrow
select
_pipe
_method
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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.

http://www.pulseguard.co.uk for further information about pulsation dampeners and pumping systems.
http://www.pulsation-dampers.co.uk for more about pulse dampers in pumping systems.
http://www.shock-alleviators.co.uk for more on pump start up surge, shut down back flow, & valve closure hammer.
http://www.accumulators.co.uk for information about energy saving in pumping systems, standby emergency power, and safety shutdown systems.
http://www.ldi.co.uk Liquid Dynamics International Site for help with system diagnostics, analysis, data capture, computer modeling and software for shock and pulsation.
http://www.liquid-dynamics.com Liquid Dynamics Inc Site for pipe system diagnostics, flow fluctuation and pressure disturbance analysis, data capture, compute modeling and software for shock and pulsation.
http://www.accumulators-hyd.com for more about energy saving in pumping systems, standby emergency power, and safety shutdown systems.
http://www.pulsation-shock.com for a quick view of how each different type of pulse dampener is matched to a pump installation. Pumps make flow, system resistance to flow is pressure, systems make pressure and pressure pulsation.
http://www.water-hammer.com for pump start up surge, shut down back flow shock, & valve closure water hammer.
http://www.shock-guard.com to find large gas bag vessels, jumbo bladders, float separator and big bellows type pipeline shock attenuators and expansion - contraction volume compensators
http://www.flow-guard.com to find protection against excess flow. Guard against toxic spills when pipes burst, guard against gushers and fluid loss when hoses split, Flow-Guard guards against excess flow floods.


"SITE MAP" "FOLDER"/DIRECTORY TREE, "NAVIGATION AID" aka TABLE OF CONTENTS

===================================================
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.
----------------------------------------------------------------------------
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

----------------------------------------------------------------------------
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.
PulseGuard Ltd. and Inc.The Smooth Flow People

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

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