PulseGuard Pulsation Dampers
PulseGuard: Guarding Against Pulsation
Pump Pulsation Dampers
Fluid Flow Control Animations

Pulsation Damper Information PDF Pulsation Damper PDF PG33 Printable Version

Pulsation Dampers - Building a Software Model With LDi PulseView Program

INPUT DATA REQUIRED TO PREDICT AND ADDRESS SYSTEM PRESSURE PULSATION RESPONSE, TO EXCITATION FROM A RECIPROCATING PUMP.

1. PARAMETERS OF YOUR SYSTEM LIQUID
___(a) density of the liquid:________________________________________________________________grams/cc
___(b) compressibility of the liquid and any absorbed gas:________________________________________litres/bar
___(c) effective vapor pressure at pump inlet temperature:______________________________________°C
2. PARAMETERS OF THE PIPE SYSTEM
(i) Supply to the suction of the pump.
___(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) The pipe from the discharge of the pump, to the end of the system
___(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:_________________________________________________________________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:_________________________________________________________________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

ADDITIONAL INFORMATION: REQUIREMENTS FOR THE MATERIALS OF CONSTRUCTION:
___A. Metal:_________________B.Membrane/Seal Material____________________
___C. Liquid(s) Description:______________________________________________
___D. Operating/Design Temperature: ___________F_________________________
___E. Specified Design Pressure:_______________M.D.M.T.___________________
___G. Connection Type, Size & Rating: Suction:______________________________
                                                    Discharge:______________________________
___H. Any other information that you believe may be relevant:
CUSTOMER:_________________________
CUSTOMER REF:_____________________
ENGINEER NAME: ____________________
QUANTITY:___________________________
Q No.:_______________________________
ISSUED BY:__________________________
CHECKED BY:________________________
ISSUE DATE:_day/month/year___________
FILE REF: PV-WRD01.VLM/15-MAR-00
SCALE: NA ALL DIMENSIONS ARE MM EXCEPT AS STATED
REF. NO.
SHEET 1 of 1 REV. 0
Liquid Dynamics International
Pay for run time
TECHNICAL SERVICES
call USA (910) 270-2737 & --44(0)161-480-9625
Your contact: M. Martin Packer (Patents, Designs, and Tech Support)
TITLE: Liquid Dynamics International SOFTWARE
Use frequency response for mechanical vibration analysis
APPLICATION: to comply with ASME VIII UG22
DETERMINE THE LEVEL OF SYSTEM RESPONSE PRESSURE PULSATION FROM THE FORCING EXCITATION OF A RECIPROCATING PUMP PLUS DAMPER

 



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