Hydraulic Accumulators

Surge, Diaphragm, Piston, and Bladder Types

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Offshore Oil & Gas Applications Surge Accumulators Pulsation Dampers Bladder Accumulators



Pulsation Dampers / Chemical Process Metering

Thru Flow Discharge Pulsation Preventor           Thru Flow Diaphragm Accumulator           Thru Flow Pressure Pulse Stabilizer           Flow Tranquilizer / Pulsation Preventor with Thru Flow


Intercept instrument destabilizing high frequency, prevent resonance, stop acoustic waves, address
acceleration head forms of pulsation. All with flush in place and constant temperature pulsation damper features.

FlexOrber HP   |   FlexOrber LP   |   PipeHugger HP   |   PipeHugger LP   |   PipeGuard - All Stainless






Pulsation Dampers: Allow for "Overlap" of One Displacement to the Next 1 Liter Triplex Pump 1 Liter Duplex Pump 1 Liter Simplex Pump Liquid Dynamics International Ltd. Compare Simplex, Duplex, Triplex and matching dampers. Note :- "liquid only" filled dampers may be 600 times these sizes. ALL GRAPHICS ARE TO THE SAME SCALE TRIPLEX PUMP FLOW FLUCTUATION 1 Liter Triplex Pump PLUNGER DIAMETER 10mm PLUNGER STROKE 2025mm VOLUME PER PLUNGER PER STROKE 1589 cm3 CRANKSHAFT RPM 210 FLOW RATE 1 Liter/Minute (60 in3) See Animation: 1 Litre/Minute Triplex See Also: Triplex Motion LDi DUPLEX PUMP FLOW FLUCTUATION 1 Liter Duplex Pump PLUNGER DIAMETER 12.25mm PLUNGER STROKE 2.025mm VOLUME PER PLUNGER PER STROKE 2.386641 cm3 CRANKSHAFT RPM 210 FLOW RATE 1 Litre/Minute (60 in3) See Animation: 1 Litre/Minute Duplex Note: Pressure pulsation is a square law to flow fluctuation SIMPLEX PUMP FLOW FLUCTUATION High Pressure Pulsation DISCHARGE FLOW VELOCITY ZERO FLOW ACCUMULATE TO FILL HERE 1 Liter Simplex Pump See Animation: 1 Liter Simplex Pump PLUNGER DIAMETER 17.33mm PLUNGER STROKE 2.025mm VOLUME PER PLUNGER PER STROKE 4.777 cm3 CRANKSHAFT RPM 210 FLOW RATE 1 Liter/Minute (60 in3) Pulsation Dampers: Allow for "Overlap" of One Displacement to the Next ROLLING DIAPHRAGM TYPE PULSATION DAMPENERS PG Size"1" VOL 1 Cost Factor 750 "ELASTIC DAMPER" PG Size "3" VOL 8 Cost Factor 3000 "ELASTIC" DAMPER ROLLING DIAPHRAGM PG Size "11" VOL 27 Cost Factor 8500 "ELASTIC DAMPER"
THEORETICAL vs ACTUAL TRIPLEX CHARACTERISTICS THEORETICAL vs ACTUAL TRIPLEX CHARACTERISTICS VOLUME AND MASS FLOW FLUCTUATION TRIPLEX RECIPROCATION PLUNGER AND PISTON PUMP MOTION WHEN DISPLACERS PHASED AT 120 DEGREES THEORETICAL FLOW VELOCITY CHANGE WHEN CONNECTION ROD IS 4 x CRANKSHAFT RADIUS DEGREES OF ROTATION SUCTION DISCHARGE IT IS RARELY MORE THAN 16% OF THE FLOW THAT HAS TO RECIPROCATE IN AND OUT OF A DAMPER THEREFORE IF THE VISCOSITY, AND THE SPECIFIC GRAVITY ARE LOW THEN A SINGLE CONNECTION DAMPER CAN BE DEPLOYED. Please refer to the factory for selection. Piston "A" Piston "B" Piston "C" Discharge THERE ARE 6 PULSES PER REVOLUTION BECAUSE OF THE 60 DEGREE OVERLAP Pump oscillograph type plots generally represent FLOW. The relationship between flow and pressure is a square law. Pressure plots are therefore more "exagerated". Damper "before and after" plots often do not come from data capture at KHz. PRESSURE PULSATION VELOCITY JUMP SHOCK VELOCITY JUMP SHOCK PEAK PRESSURE depends on tha amount of lost motion caused by fluid compressibility and volumetric efficiency. THEORETICAL PRESSURE CHANGE WHEN CONNECTION ROD IS 4 x CRANKSHAFT RADIUS ACTUAL NORMAL PRESSURE CHANGE BECAUSE LIQUIDS ARE COMPRESSIBLE CAUSING A FALL IN VOLUMETRIC EFFICIENCY DISCHARGE PRESSURE DISCHARGE PRESSURE To intercept transient pressure spikes at x y and z a "flow through" damper WILL BE ESSENTIAL.




Pulsation Damper / Thru Flow Discharge Pulsation Preventor

For benzenes, bromines, -ides, -chloros + nitric permeation, and hazardous substances.



See also: Pulsation Damper Line Drawing

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Thru Flow Diaphragm Accumulator / Pulsation Preventor

The Flexorber LP series is an adaptation with plastomeric membrane diaphragms for process control industry pulsation dampening.



See Also: Diaphragm Accummulator Line Drawing

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Thru Flow Pressure Pulse Stabilizer / Pulsation Preventor

These stabilizers, for pressures up to 30000 psi, remove fluctuations and make your systems controllable whilst protecting instrument accuracy.



See also: Pressure Pulse Stabilizer Line Drawing

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Flow Tranquilizer / Pulsation Preventor with Thru Flow

A flow tranquilizer quietens the disruptions in discharge velocity; pressure losses are minimized and overall efficiency is increased.



See also: Flow Tranquilizer Line Drawing

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PipeGuard All Stainless Pulsation Dampener

Typical "Pig ss" Series Pulsation Dampener, & options. 316L, wetted metal parts + EP, Nitrile, Hypalon, Fluorel etc gas bags.


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Offshore Oil & Gas Applications Surge Accumulators Pulsation Dampeners Bladder Accumulators

Hydraulic Accumulators & More

Surge, Diaphragm, Piston, and Bladder Types

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