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ShockView schematic

ShockView plots A, B, C

Input data for shock modeling

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7 ocillographic plots

Necess. program input data

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Ldi PULSEVIEW PROGRAM INPUT DATA.
ANALYSIS AND PREVENTION OF PUMP PULSATION AND CAVITATION.

1. Liquid Parameters.
___(a) density of the liquid:_____________________________________________________________grams/cc
___(b) compressibility pf the liquid and any absorbed gas:____________________________________litres/bar
___(c) effective vapor pressure at pump inlet temperature:____________________________________°C
2 Pipe Parameters
(i) Suction Side
___(a) expected theoretical steady state suction pressure:___________________________________BarA
___(b) length of pipe from supply to suction acceleration head loss preventer inlet:________________meters
___(c) inside diameter of pipe from supply to preventer inlet:__________________________________mm
___(d) length of pipe from preventer to pump suction inlet:____________________________________meters
___(e) inside diameter of pipe from preventer to pump suction inlet:____________________________mm
(ii) Discharge Side
___(a) discharge pressure against which the pump must deliver:______________________________BarA
___(b) length of pipe from pump discharge check valve to discharge acceleration head preventer inlet:__meters
___(c) inside diameter of pipe from pump discharge to preventer inlet:__________________________mm
___(d) length of pipe from preventer discharge to final resistance: _____________________________meters
___(e) inside diameter of pipe from preventer discharge to final resistance:______________________mm
Pump Parameters
(i) Pumping Mechanism
___(a) connecting rod length:__________________________________________________________meters
___(b) crank shaft radius - i.e. half the piston stroke:_______________________________________meters
___(c) piston diameter:_______________________________________________________________meters
___(d) effective dead volume of pump chamber:____________________________________________litres
___(e) number of strokes of one displacer per minute:______________________________________
(ii) Suction Check Valves
___(a) valve seat diameter:______________________________________ID_____OD_____________mm
___(b) valve stroke:___________________________________________________________________mm
___(c) valve mass, plus half the weight of one valve spring:___________________________________Kg
___(d) starting resistance to compression of spring:________________________________________Kg
___(e) string rate:____________________________________________________________________Kg/mm
(iii) Discharge Check Valves
___(a) valve seat diameter:______________________________________ID_____OD_____________mm
___(b) valve stroke:___________________________________________________________________mm
___(c) valve mass, plus half the weight of one valve spring:___________________________________Kg
___(d) starting resistance to compression of spring:_________________________________________Kg
___(e) spring rate:____________________________________________________________________Kg/mm

*Include pressure wave speed (acoustic velocity):_________________________________________m/s

 

ADDITIONAL INFORMATION: REQUIREMENTS FOR THE MATERIALS OF CONSTRUCTION:
___A. Metal:_________________B.Membrane/Seal Material____________________
___C. Liquid(s) Description:______________________________________________
___D. Operating/Design Temperature: _____________________________________
___E. Specified Design Pressure:_______PSI___°F____M.D.M.T._______°F_____
___G. Connection Type, Size & Rating: Suction:____________________________
                                                    Discharge:____________________________
CUSTOMER:_________________________
CUSTOMER REF:_____________________
ENGINEER NAME: ____________________
QUANTITY:___________________________
Q No.:_______________________________
ISSUED BY:__________________________
CHECKED BY:________________________
ISSUE DATE:_day/month/year___________
___H. Any other information that you believe may be relevant:

 

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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




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