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Pulsation Dampeners Installation for Vane Pumps

Pulsation Dampeners for Vane Pumps Pulsation Dampener Size Selection Tables for Pipe Systems where the Flow is Coming from a Vane Pump

Pulsation Dampeners for Vane Pumps "Quieting pipe noise in Vane Pump systems Most efficient, lowest costs, "Pulse" Muffler method selection. The pump is only a "plectron" but the system is your "mandolin" - amplifier!" "PUMPS make FLOW, SYSTEMS cause Pressure, pressure pulsation is a system response AND a system responsibility, NOT a pump  manufacturers liability." "THE PROBLEM IS HIGH FREQUENCY PRESSURE PULSATION, "ACOUSTIC" NOT FLOW FLUCTUATION" "WaveGuard can completely eliminate audible evidence of the 223 Hz frequency, for less than 40% of the cost of treating it as flow fluctuation." "The worst and most inexcusable error in pipe system design is to treat pressure transfer as the same as rate of mass transfer & assume that liquid is incompressible. (or that speed of sound = infinity)"

Curing resonant pipe "whine" in vane pump systems at:
1. Low frequency
2. Medium frequencies
3. High frequencies
If you must have the higher cost of a single connection “dampener” then at least go to the original PipeGuard series, it is far less expensive than any of its copies.

Vane Pump Pulsation Dampener Information The source of the disturbance that is magnified into audible pulsation by the pipe system is from "X". As the vane passes over the end of the port slot, there is a pressure peak from liquid trying to escape.

Vane Pump Pulsation DampenersPulsation Dampener for Vane Pumps

FlexOrber: for systems requiring cleanliness, LDi “FlexFlon” or DuPont Teflon, plus polished 316ss and flow through flushability in place. Piping: “Texas style” – longhorns. A quieter pump would have 7 or 11 vanes. PTFE cushion separators for the process liquid are “stiff” and generally only respond up to a maximum frequency of 30Hz. Check your pulse frequency before selecting Teflon. Unlike “volumetric flow fluctuation” accumulation, or protection from “acceleration head loss or acceleration head generation” on the discharge of a reciprocating machine, preventing the pressure response of a system from feeding back to a pump and amplifying the input signal, requires the interception of pressure waves. Pressure travels at thousands of MPH, so an in line flow through device is a bare minimum requirement.

Vane Pump Pulsation DampenersPulsation Dampener for Vane Pumps

PipeHugger: for up to 150Hz. For medium frequencies and with EPDM, Buna Nitrile, Hypalon, or Fluoro elastomers, etc. bladders. Piping: “Louisiana style” – one out of it and one coming at you. The higher the frequency, the less important the volume of Nitrogen or air cushion becomes. Conversely, the most important it is that:-
A). There is a good volume of liquid to deaden the pressure activity.
B). There is nothing close to the inlet, for a transient pressure spike to bounce back from.
C). As a pressure spike explodes through an orifice into a large chamber, it dies away exponentially with distance traveled, so the diameter of the vessel is of prime importance, and should be preferably 8+ times the diameter of the exit hole.
For all the above reasons, our original 1965 gas bag accumulator, PipeGuard, copied by so many, is totally unsuitable in its single connection form. * * *

Pulsation dampeners with no moving parts, no foam to degrade or clog

"Maintenance free dampeners" An admission that pulsation is acoustic not volumetric.

Vane Pump Pulsation DampenersPulsation Dampener for Vane PumpsPressure Pulsation Dampeners

WaveGuard: for high, medium, and low frequency pressure pulsation. The answer to high frequency low volumetric pulsation, for clean liquids. Note: A dominant frequency of say 300 Hz, may mean nothing more than, that there is a major pipe node that is 15ft. Long, i.e. Frequency depends on distance. Please see the other WaveGuard range types designed for contaminated systems. For high efficiency “acoustic” dampeners where some delta P is acceptable, please refer to Wag/HO series.

Pulsation dampener with no moving parts TheAcoustic Pulsation Dampeners Ball path Disperser Guards against pressure waves propagation. By causing the pressure waves to travel down many paths of different lengths, through the ball pack, the instant at which they emerge from the other end of the WaveGuard, is spread over time. Spreading the time base, decreases the pressure height of the pulsation.


Select fluid control pulsation dampeners for your system only after you know how to connect them
When you see pulsation dampeners, reciprocating pumps, rotary pump, or other hardware type of interest, request literature dedicated to that dampening subject ( 1-888-DAMPERS )

Pulsation dampeners are designed to address pressure pulsation, which is caused by the resistance of the system to flow. Therefore, our pulsation dampeners focus on the system related responsibility and are less related to pump liability.
PUMPS make FLOW, SYSTEMS cause PRESSURE, pressure pulsation is a system response, AND a system responsibility NOT a pump manufacturers liability.

Select fluid control pulsation dampeners for your system only after you know how to connect them
When you see pulsation dampeners, reciprocating pumps, rotary pump, or other hardware type of interest, request literature dedicated to that dampening subject ( 1-888-DAMPERS )

Pulsation dampeners are designed to address pressure pulsation, which is caused by the resistance of the system to flow. Therefore, our pulsation dampeners focus on the system related responsibility and are less related to pump liability.
PUMPS make FLOW, SYSTEMS cause PRESSURE, pressure pulsation is a system response, AND a system responsibility NOT a pump manufacturers liability.

Selection by Pump Type:
AODD
Dosing

Gear
Hose
Lobe
Metering
Packed Plunger
Multiplex Power
Progressive Cavity
Screw
Vane

Installation by Pump Type:
AODD
Centrifugal
Dosing
Gear
Hose
Intensifier / Injection
Lobe
Metering
Packed Plunger
Multiplex Power

Progressive Cavity
Screw
Vane


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Index | Selection / Quotation (What do you need?) | Contact Information

Click on the picture of the damper below to see how it works and is assembled, animated.
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