[LDi] Liquid Dynamics International Liquid Dynamics International Inc. Click here to: Contact Liquid Dynamics Liquid Dynamics offers pulsation, vibration, and shock analysis, diagnostics, and software models. Fluid Flow Control Animations
Animations

INTERPRETING
OSCILLOGRAPHS
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6 examples

Gear & Packed Plunger Systems

Dosing, Air Op. &"Metering" Systems

Plunger & Valve Motions

Multi Plunger & Centrifugal Systems

Acceptable Maximums

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LDi Catalog Printable PDF16, 17

LDi Pulsation Analysis - target image Acceptable stabilities by various components and design purpose.

Before analyzing system pressure amplitude at frequency and causes, determine acceptable maximums. Below are suggestions.

Percentages are of theoretical steady state condition.

Maximums Maximums
Maximums

 

60% shaft deflection Spray blobs have atomization , 5% Constant streams in fully mixed out First in first out bad static mixing without continuous flow, 3.5% to 4% Bobbin in tapered transparent tube, 4% 6% set frquency pulsed magnetic field "Mag Meter" 3.0% paddle wheel meter Turbine meter, 1.5% Coriolis vibrating tubes meter, 1% “Delta P” orifice meter, 1 psi max Vortex shedding, .75% Spinnerette heads. 0.1% DQ Denier checked by laser beam precisely Film thickness control, 0.2% Web coating
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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. USA: Pulsation Dampeners | Pulsation-Dampeners.com: Pulsation Dampeners
PulseGuard Limited: Pulsation Dampers | PulseGuard für Deutschland: Pulsationsdämpfer

Large pressure vessels, jumbo bladders, float separator / big bellows type pipeline surge attenuators and
expansion / contraction volume compensators, surge alleviators, and shock alleviators.

Shock-Guard. USA: Surge Alleviators | Water-Hammer.com: Water Hammer
ShockGuard.co.uk: Shock Alleviators | Suction-Stabilizers: Suction Stabilizers

Information about energy saving in pumping systems, standby emergency power, safety shutdown systems,
hydraulic accumulators, and hydropneumatic accumulators.

Accumulators-Hyd: Hydraulic Accumulators
Accumulators.co.uk: Hydropneumatic Accumulators | HydroTrole: Hydraulic and Control Engineering

Protection against excess flow. Protect against toxic spills when pipes burst, guard against gushers and fluid
loss when hoses split. Flow-Guard against excess flow floods with flow fuses and breather bags.

FlowGuard: Flow-Guard - Flow Fuses and Breather Bags




Fluid Flow Control Fluid-Flow-Control.com The Fluid Flow Control Source Pumps Accumulators Filters Dampers Heat Exchangers Valves Mixers P.I. / Pressure Indicators Controls Meters Vessels