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  • The performance of centrifugal pumps when pumping ultra-viscous

    Significant advances have been made in the design of centrifugal slurry pumps that are used for pumping high-density viscous and paste slurries This paper presents the results of a series of centrifugal pump performance tests that were conducted using an FLSmidth 6 x 4 Krebs millMAX centrifugal pump The pump was

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  • Centrifugal Pump Model 83PB - Oberdorfer Pumps

    The temperature limit for bronze pumps is 212o F, higher temperatures are possible with fluoroelastomer or Chemlon seals If in doubt, consult with factory Because centrifugal pumps are more efficient at higher shaft speeds, pumping of viscous or thick liquids is difficult It is possible to lose as much as 40 pump

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  • A numerical study on special duties centrifugal pumps: sensitivity

    Special duties rotordynamic pumps operates with non-water fluids They have many advantages over volumetric pumps (like wider range of operative flow rates, less friction problems, etc) so they could find a wide approval in low viscosity non-Newtonian fluid applications High viscous and non-Newtonian fluids are

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  • Why Rotary Positive Displacement Screw Pumps Are an - CIRCOR

    Pumps & Systems December 2009 article submission Page 4 Efficiency of Rotary Positive Displacement Screw Pumps Used for High-Viscosity Crude Oil Centrifugal and rotary positive displacement screw pumps are both options for transporting crude oil However, a rotary screw pump handles high-viscosity crude oil

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  • When to Use a Positive Displacement Pump vs Centrifugal (pdf)

    Positive Centrifugal Flow rate versus viscosity Another major difference between the pump types is the effect viscosity has on the capacity of the pump You will notice in the flow r loses flow as the viscosity goes up but the PD pump's flow actually increases This is because the higher viscosity liquids fill the clearances of

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  • High Viscosity Pumps - Pumps for Viscous Fluids Page 1 Castle

    Applications involving the pumping of high viscosity fluids, for example viscous chemicals, adhesives, pastes and slurries, require specific types of pumps able to handle them As the liquid passing through the pump internals is thick, certain technologies such as centrifugal pumps struggle due to frictional losses inside the

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  • Study on centrifugal pump for high viscosity liquids (Effect

    Download citation Study on centrifugal When centrifugal pumps are used for pumping high viscosity liquid, it is a problem that pump efficiency decreases as the viscosity of pumped liquid is higher As the cause, the change of influence on the efficiency of various losses (for example, dis

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  • Performance correction chart of centrifugal oil pump for handling

    Its work pressure is high enough to avoid vaporization We change the viscosity of test fluids by using different ratio of 120BS base oil and diesel 2 2 Calculation method of correction factor The flow-head curve and flow - efficiency curve of centrifugal oil pump for pumping viscous fluids are generally corrected based on the

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  • Viscosity corrections to pump curve Mc Nally Institute

    Feb 18, 2018 Viscosity corrections to the pump curve 14-04 Viscosity means resistance to pouring The higher the viscosity the thicker the fluid If you are not familiar with the term viscous fluid please refer to my paper Volume 7 , Number 8 Here is what is going to change when you pump viscous fluids with a centrifugal

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  • What type of pump is used for highly viscous fluid and Why? - Quora

    The first consideration in any application is pumping conditions Usually the need for a PD pump is already determined, such as a requirement for a given amount of flow regardless of differential pressure, viscosity too high for a centrifugal pump, need for high differential pressure, or other factors Inlet conditions, required

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  • Equations correct centrifugal pump curves for viscosity - Oil & Gas

    Equations that replace diagrams can correct centrifugal-pump performance curves for highly viscous liquid The Paciga method, on the other hand, enables one to establish complete performance curves, but its viscosity range is inappropriate for the high-viscosity oils and liquids commonly encountered in the petroleum

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  • Fluid Viscosity Effects on Centrifugal Pumps - Warren Pumps

    we are interested in pumping has a viscosity that is less than or equal to that of water However, in some cases-certain crude oils, for example-this is not the case Heavy crude oils can have viscosities high enough to increase the friction drag on a pump's impellers significantly The addi- tional horsepower required to

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  • Positive Displacement Pumps or Centrifugal Pumps - Delta T Systems

    As the curve on the right shows, the centrifugal pump's flow rate will decrease as the viscosity increases Conversely, PD pumps deliver a higher flow as the viscosity increases There is less slip in the pump This is due to the fact that fluids with higher viscosity require more energy to move The PD pump actually performs

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  • Fluid viscosity and density: A pump user's guide Grundfos

    Viscosity is essentially resistance to flow and this has implications for pumps, says Søren Mortensen If you have a high-viscosity, sticky fluid on your hands, it clings and it's much harder to remove than a low-viscosity fluid It is the same in a pump, where you have impellers to move the fluid If you are pumping fluids like

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  • Useful information on centrifugal pumps - Michael Smith Engineers

    There are two main families of pumps: centrifugal and positive displacement pumps In comparison to the latter, centrifugal pumps are usually specified for higher flows and for pumping lower viscosity liquids, down to 0 1 cP In some chemical plants, 90 of the pumps in use will be centrifugal pumps However, there are a

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  • Viscosity KSB

    1 Pulp pumping All other curves denote non-NEWTONian liquids handled in pulp pumping applications, whose effects on the operation of centrifugal pumps cannot easily 4 Viscosity: Diagram for conversion of characteristic curves of centrifugal pumps with radial impellers for pumping higher-viscosity liquids (from: KSB)

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  • Centrifugal Pump Viscous Fluids - Pump World

    The performance of centrifugal pumps is affected when pumping viscous liquids A dramatic increase in Brake Horsepower and a reduction of Flow and Head occurs To determine the affects of pumping viscous fluids using a centrifugal pump use the Performance Correction Chart below: CH = Head Correction CQ = Flow

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  • ISO/TR 17766:2005(en), Centrifugal pumps handling viscous liquids

    ANSI/HI 1 1-1 6 2 , Constance, John D , "Using Centrifugal Pumps for High Viscosity Liquids", Plant Engineering, Sept 16, 1976, pp 163-166 3 , Daugherty, Robert L , "Investigation of the Performance of Centrifugal Pumps When Pumping Oils", Bulletin 126, The Goulds Manufacturing Company, Seneca Falls, N Y , 1925

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  • The Effect of Viscosity on Performance of a Low Specific Speed

    May 29, 2016 Several methods and correlations have been developed to predict reduction rate in centrifugal pump performance when handling viscous fluids, but their results are Ippen 2 indicates that the expected efficiency, even for large pumps, for a Reynolds number of 5000 would be on the order of 30 percent

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  • What a Drag: Effects of Fluid Viscosity on Centrifugal Pumps (Page 2)

    Nov 15, 2017 A frequently stated expression around the pump industry is that viscosity is the Kryptonite of centrifugal pumps Pardon the allusion to Mercury has a high SG (13), but a low viscosity and many lube oils have a low SG (lower than water or less than 1 0) but have a high viscosity SG is ratio of the density of

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  • Centrifugal Pumps and Influence from Viscosity - Engineering ToolBox

    When a liquid flow through a pump, hydrodynamic losses depends on fluid viscosity

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  • The Influence of Pump Viscosity on Performance Centrifugal

    Viscosity on '-' Performance PAPER NO A-45-57 Centrifugal 1 199 / By ARTHUR T IPPEN' SUMMARY THE wide use of centrifugal pumps in 1{he oil industry dc- ~ands t~at viscosity on the performance of centrifugal pumps is to be recog- nized in torque for the high speed exceeded the dynamometer capacity

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  • The performance of centrifugal pumps when pumping ultra - CiteSeerX

    compared to the high flow rates for the high viscosity slurry, which is in line with the findings of Walker and Goulas (1984) This paper demonstrates that it is possible to pump very viscous, high yield stress slurries with limited head and efficiency de-rating using centrifugal pumps, provided that positive suction conditions are

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  • High Viscosity Test of a Crude Oil Pump - OAKTrust

    The test results provide valuable insight on the effects of high viscosity on centrifugal pump performance curves, allowing a more accurate rating and possibly a better optimization of the process equipment, e g electrical motor, valves, cooling system, by improving the flow characteristics predictions INTRODUCTION

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  • cfd study on special duty centrifugal pumps operating with viscous

    claudio verga@unife it ABSTRACT Centrifugal pump design operating with special fluids (high viscosity, non-Newtonian, solid handling) is usually performed by considering water as the working fluid and then by applying empirical correction to the performance according to the fluid processed CFD techniques allow the

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  • High Viscosity Pumps - Pumps for Viscous Fluids Page 1 Castle

    Applications involving the pumping of high viscosity fluids, for example viscous chemicals, adhesives, pastes and slurries, require specific types of pumps able to handle them As the liquid passing through the pump internals is thick, certain technologies such as centrifugal pumps struggle due to frictional losses inside the

    More +
  • Pumping highly viscous fluids with centrifugal pumps Part 1

    When a fluid of high viscosity such as heavy oil is pumped by a centrifugal pump the performance is impaired in comparison to service with water due to increased losses Usually the performance reduction is estimated by means of correction factors for flow, head and efficiency, by which the data measured with water

    More +
  • Centrifugal Pump Viscous Fluids - Pump World

    The performance of centrifugal pumps is affected when pumping viscous liquids A dramatic increase in Brake Horsepower and a reduction of Flow and Head occurs To determine the affects of pumping viscous fluids using a centrifugal pump use the Performance Correction Chart below: CH = Head Correction CQ = Flow

    More +
  • What a Drag: Effects of Fluid Viscosity on Centrifugal Pumps (Page 2)

    Nov 15, 2017 A frequently stated expression around the pump industry is that viscosity is the Kryptonite of centrifugal pumps Pardon the allusion to Mercury has a high SG (13), but a low viscosity and many lube oils have a low SG (lower than water or less than 1 0) but have a high viscosity SG is ratio of the density of

    More +
  • Centrifugal Pumps and Influence from Viscosity - Engineering ToolBox

    When a liquid flow through a pump, hydrodynamic losses depends on fluid viscosity

    More +
  • Fluid viscosity and density: A pump user's guide Grundfos

    Viscosity is essentially resistance to flow and this has implications for pumps, says Søren Mortensen If you have a high-viscosity, sticky fluid on your hands, it clings and it's much harder to remove than a low-viscosity fluid It is the same in a pump, where you have impellers to move the fluid If you are pumping fluids like

    More +
  • What type of pump is used for highly viscous fluid and Why? - Quora

    The first consideration in any application is pumping conditions Usually the need for a PD pump is already determined, such as a requirement for a given amount of flow regardless of differential pressure, viscosity too high for a centrifugal pump, need for high differential pressure, or other factors Inlet conditions, required

    More +
  • Why Viscous Fluid Is The Centrifugal Pump's Kryptonite

    Jan 29, 2015 Generally speaking, centrifugal pumps are most suitable for low viscosity fluids, since the pumping action generates high liquid shear As viscosity increases, pump performance diminishes due to friction loss Viscous drag imparts on the impeller, the pump's head and flow are reduced, and the horsepower

    More +
  • Fluid Viscosity Effects on Centrifugal Pumps - Warren Pumps

    we are interested in pumping has a viscosity that is less than or equal to that of water However, in some cases-certain crude oils, for example-this is not the case Heavy crude oils can have viscosities high enough to increase the friction drag on a pump's impellers significantly The addi- tional horsepower required to

    More +
  • Why Viscous Fluid Is The Centrifugal Pump's Kryptonite

    Jan 29, 2015 Generally speaking, centrifugal pumps are most suitable for low viscosity fluids, since the pumping action generates high liquid shear As viscosity increases, pump performance diminishes due to friction loss Viscous drag imparts on the impeller, the pump's head and flow are reduced, and the horsepower

    More +
  • Pumping highly viscous fluids with centrifugal pumps Part 1

    When a fluid of high viscosity such as heavy oil is pumped by a centrifugal pump the performance is impaired in comparison to service with water due to increased losses Usually the performance reduction is estimated by means of correction factors for flow, head and efficiency, by which the data measured with water

    More +
  • Pump Types Guide - Find the right pump for the job - PumpScout

    All sorts of liquids can be pumps with centrifugal pumps Highest flow rates of all pump types Handles clean or dirty liquids, and liquids with low viscosity Liquid should not contain air or vapors Water and relatively thin liquids (won't pump thicker oils) Can pump liquids with or without solids if proper impeller type is chosen

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  • Centrifugal Pumps How Does a Centrifugal Pump Work & More

    Centrifugal pumps are unique because they can provide high or very high flowrates (much higher than most positive displacement pumps) and because their flowrate varies considerably with changes in the Centrifugal pumps are designed for liquids with relatively low viscosity that pour like water or like a very light oil

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  • Study on centrifugal pump for high viscosity liquids (Effect

    Download citation Study on centrifugal When centrifugal pumps are used for pumping high viscosity liquid, it is a problem that pump efficiency decreases as the viscosity of pumped liquid is higher As the cause, the change of influence on the efficiency of various losses (for example, dis

    More +
  • Pumping crude oil by centrifugal impeller having different blade

    Centrifugal pumps are extensively used in the oil and gas industries and the pump performance drops with higher viscosity and higher surface roughness of the pump impeller, and the impeller design

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