Liquid Dynamics - Pulsation Analysis, Diagnostics, and Software Models

From 30 years experience:
Reading oscillograph pulsation "signature", to identify the causes.
Recognizing normal activity, and deciding how smooth it needs to be.

Graphics, interpreting pressure over time oscillograph traces,
to identify the sources of shock and pulsation.

1. Suction starvation time lag.
2. Foot valve oscillation.
3. Typical acoustic response, tells nothing more than the length of the supply pipe.
4. Channel "cavitation", from high velocity and 4:1 delta P.
5. Vortex frequencies - meter disturbance inaccuracy.
6. Normal pump start-up.

Ultra stable circuits with gear pump. Typical packed plunger systems.

Acceptable stabilities by various components and design purpose.

Dosing and mixing system fluctuations. The horror of compressible liquids, high pressure, & pipe response to love volumetric efficiency.

Triplex reciprocating plunger pump - analysis of motion, valve action mass oscillation, velocity jump, membrane response, and all and all.

Centrifugal system startup surge wave, backflow bang, valve deceleration hammer. A Typical "power" pump / API 674 system design.

CATALOG PAGES in PDF
PUBLICATION 2
Go to Entire Catalog

Page 13 - Oscillograph pulsation "signatures" cover	PDF p13
Page 14 - Examples 1, 2, 3.	PDF p14
Page 15 - Examples 4, 5, 6.	PDF p15
Page 16 - Gear & Packed Plunger Sys., Accept. Max.	PDF p16
Page 17 - Dosing, Air Op. & "Metering" Sys., Accept. Max.	PDF p17
Page 18 - Plunger & Valve Motions	PDF p18
Page 19 - Multi Plunger & Centrifugal Systems	PDF p19
Page 20 - Synopsis, overview	PDF p20

	Liquid Dynamics International provides pipeline and pump user problem analysis, diagnostics, prediction by software, pulsation analysis, piping system analysis, and piping system simulation. For water hammer and shock solutions pulsation dampening and shock alleviating devices can be obtained from our associate websites:
	PulseGuard Inc., and Ltd. for further information about pulsation dampeners / pulsation dampers. PulseGuard.com - Pulsation Dampeners Pulsation-Dampeners.com - Pulsation Dampener PulseGuard.co.uk - Pulsation Dampers PulseGuard für Deutschland - Pulsationsdämpfer
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	Accumulators-Hyd.com and Accumulators.co.uk for information about energy saving in pumping systems, standby emergency power, safety shutdown systems, hydraulic accumulators, and hydropneumatic accumulators. Accumulators-hyd.com - Hydraulic Accumulators Accumulators.co.uk - Hydropneumatic Accumulators Hydraulic and Control Engineering since 1963; See also: Hydrotrole.co.uk Services for Hydraulic and Pneumatic Equipment Recertification and HydroTrole Limited Accumulator Types
	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 with flow fuses and breather bags Flow-Guard - Flow Fuses and Breather Bags