Liquid Dynamics
Pulsation Analysis, Diagnostics, Prediction by Software
Pipeline and Pump user Problem -
Pulsation Analysis, Diagnostics, Prediction by Software
LIQUID DYNAMICS Ltd. offer Pulsation / Vibraton and Shock - Analysis & Diagnostics + Software Models
Please call toll free USA 1-888-326-7377 WE HAVE PEOPLE - Not voice mail. --44-161-480-9625 UK
 
 
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EXPRESSIONS
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Suction acceleration head losses / how much discharge Head loss, surge
pressure
Viscous Drag, Scrubbing Action, Rotary Flow, Reynolds Effect Friction losses
Allow for overlap of one displacement to the next Volume inefficiency
Check amplitude of highly excitational pressure spikes Velocity jump shock
Prevent pipe shake fatigue fracture Nomogram
Frequency vs. Pipe ID

Pulsation Analysis PDF Catalog - Liquid Dynamics PDF CATALOG
LDi Pulsation Analysis Contact Page CONTACT US

At a minimum check below, that system pipe A.H. + pipe friction + lack of "overlap" from system liquid compressibility; is not producing greater system pressure pulsation than allowed, to prevent pipe shake fatigue fracture (per API 674 etc).

prevent pipe shake fatigue fracture

When your system pipe and fittings plus liquid cP, SG and compressibility pulsation, has been checked against the above nomogram - please review the other necessary pressure smoothness and frequency criteria for your instruments, meters, etc.

 
Frequency of the pulsation, f, how many peaks (and valleys) per second called Hertz “Hz” Beware some specifications refer to “peak to peak”. As time is normally the horizontal axis, this could mean time lapse or Hz. Internal diameter of pipe in inches Maximum allowable peak to valley pressure variation PSI
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www.Liquid-Dynamics.com
Phone USA 910.270.2737
PO Box 506 Hampstead, NC 28443 USA
UK (for EC) --44(0)161-480-9625
PO Box 47, Stockport, UK SK3-OLH
 

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
  Shock-Guard.com and ShockGuard.co.uk to find large gas bag vessels, jumbo bladders, float separator / big bellows type pipeline shock attenuators and expansion / contraction volume compensators, surge alleviators, and shock alleviators.
Shock-Guard.com - Surge Alleviators
ShockGuard.co.uk - Shock Alleviators
  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