Centrifugal Pumps Design and Application 2nd ed - Val S. Lobanoff, Robert R. Ross (Butterworth-Heinemann, 1992)

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Mechanical Seats 419 Figure 17-58. Three-inch diameter seal after approximately 220,000 hours of service in petroleum product, Table 17-6 Checklist for Identifying Causes for Seal Leakage SYMPTOM POSSIBLE CAUSES CORRECTIVE PROCEDURES SEAL SPITS AND SPUTTERS ("FACE POPPING"} IN OPERATION SEAL FLUID VAPORIZING 0 INCREASE COOLING OF SEAL FACES 0 ADD BY-PASS FLUSH LINE IF NOT IN USE 0 ENLARGE BY-PASS FLUSH LINE AND/OR ORIFICES IN GLANO PLATE 0 CHECK WITH SEAL MANUFACTURER FOR PROPER SEAL BALANCE 0 CHECK SEAL MANUFACTURER FOR ADDED COOLING BY USING HYDROPADS SEAL DRIPS STEADILY 0 FACES NOT FLAT 0 CARBON GRAPHITE FACES BLISTERED O SEAL FACES THERMALLY DISTORTED 0 CHECK FOR INCORRECT INSTALLATION DIMENSION 0 CHECK FOR IMPROPER MATERIALS OR SEAL DESIGN FOR APPLICATION 0 IMPROVE COOLING FLUSH LINES 0 CHECK FOR GLAND PLATE DISTORTION DUE TO OVER TOROUING GLANO BOLTS 0 CHECK GLANO GASKET FOR PROPER COMPRESSION 0 CLEAN OUT FOREIGN PARTICLES BETWEEN SEAL FACES i RELAP FACES 0 CHECK FOR CRACKS AND CHIPS AT SEAL FACESs REPLACE IF NECESSARY (table continued on next page)
420 Centrifugal Pumps: Design and Application Table 17-6 Continued Checklist for Identifying Causes for Seal Leakage SYMPTOM SEAL DRIPS STEADILY SEAL SQUEALS OWING OPERATION CARBON OUST ACCUMULATES ON OUTSIDE OF GLAND PLATE SEAL LEAKS SHORT SEAL LIFE POSSIBLE CAUSES 0 SECONDARY SEALS NICKED OR SCRATCHED DURING INSTALLATION 0 Q-RINGS OVERAGED 0 SECONDARY SEALS HARD AND BRITTLE FROM COMPRESSION SET 0 SECONDARY SEALS SOFT AND STICKY FROM CHCMCIAL ATTACK 0 SPRING FAILURE 0 HARDWARE DAMAGED BY EROSION 0 DRIVE MECHANISMS CORRODED 0 AMOUNT OF LIQUID INADEQUATE TO LUBRICATE SEAL FACES 0 AMOUNT OF LIQUID INADEQUATE TO LUBRICATE SEAL FACES O LIQUID FILM EVAPORATING BETWEEN SEAL FACES 0 NOTHING APPEARS TO BE WRONG 0 ABRASIVE FLUID CORRECTIVE PROCEDURES 0 REPLACE SECONDARY SEALS 0 CHECK FOR PROPER LEAD IN CHAMFER i REMOVE ANY BURRS 0 CHECK FOR PROPER SEALS WITH SEAL MANUFACTURER 0 CHECK WITH SEAL MANUFACTURER FOR OTHER MATERIALS 0 REPLACE PARTS 0 CHECK WITH SEAL MANUFACTURER FOR OTHER MATERIALS 0 ADO BY -PASS FLUSH LINE 0 ENLARGE BY -PASS LI 1C ANO/OR ORIFICES IN GLAND PLATE 0 ADO BY-PASS FLUSH LINE 0 ENLARGE BY -PASS FLUSH LINE ANO/OR ORIFICES IN GLAND PLATE 0 IF CHAMBER PRESSURE IS HIGH, CHECK SEAL DESIGN WITH SEAL MANUFACTURER 0 REFER TO LIST UNDER 'SEAL DRIPS STEADILY- 0 CHECK FOR SQUARENESS OF CHAMBER FACE TO SHAFT 0 PROPERLY ALIGN SHAFT, IMPELLER. GEARING ETC. TO PREVENT SHAFT VIBRATION ANO/OR DISTORTION AT GLAND PLATE ANO MATING RING 0 PREVENT ABRASIVES FROM ACCUMULATING AT SEAL FACES 0 ADO BY-PASS FLUSH LINE 0 USE ABRASIVE SEPARATOR 0 ABRASIVE MATERIALS BUILDING UP AT ATMOSPHERIC SIDE OF SEAL 0 ADD A LIQUID OR STEAM QUENCH 0 SEAL RUNNING TOO HOT 0 EOUIPMENT MECHANICALLY OUT-OF-LINE 0 INCREASE COOLING TO SEAL FACES 0 INCREASE BY-PASS FLUSH LINE FLOW 0 CHECK FOR OBSTRUCTED FLOW IN COOLING LINES 0 ALIGN— CHECK FOR RUBBING OF SEAL ON SHAFT
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CENTRIFIUGAL PUMPS Design & applica
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CENTRIFUGAL PUMPS Design & Applicat
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Contents Preface —..... —......
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ern Pumps, Mine Dewatering Pumps. W
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Stage Pumps. Single-Suction Single-
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Preface When Val and I decided to c
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CENTRIFUGAL PUMPS Design & applicat
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Part 1 Elements of Pump Design
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1 Introduction System Analysis for
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Introduction 5 Figure 1-2. The syst
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Introduction 7 mate responsibility
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Introduction 9 Figure 1-6. Maximum
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2 Specific Speed and Modeling Laws
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Specific Speed and Modeling Laws 13
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Figyre 2-7, New pump from model pum
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Impeller Design 29 Figure 3-1. Requ
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Impeller Design 31 Figure 3-4. Capa
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Impeller Design 33 Step 8: Estimate
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Impeller Design 35 Figure 3-7. Volu
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impeller Design 37 (2) 5 , as final
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Impeller Design 39 The vane develop
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Impeller Design 41 Figure 3-12. Are
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impeller Design 43 Figure 3-16. Inf
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4 General Pump Design It is not a d
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General Pump Design 4? Figure 4-1.
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General Pump Design 49 designed and
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Volute Design 51 Figure 5-1. Volute
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Volute Design 53 Figure 5-2. Radial
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Volute Design 55
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Volute Design 57 Figure 5-4. Effici
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Volute Design 59 Figure 5-5. Typica
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Volute Design 61 Figure 5-8. Univer
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Volute Design S3 Manufacturing Cons
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6 Design of Multi-Stage Casing Mult
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Design of Multi-Stage Casing 67 How
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Design of Multi-Stage Casing 69 Fig
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Design of Multi-Stage Casing 73 sec
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7 Double-Suction Pumps and Side-Suc
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Double-Suction Pumps 79 two. Experi
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Double-Suction Pumps 81 Figure 7-3.
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Double-Suction Pumps 83 LOCATION AR
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8 NPSH The expressions NPSHR and NP
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NPSH 87 Predicting NPSHR The other
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NPSH 89 Figure 8-4. Pressure loss b
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NPSH 91 SUCTION VELOCITY TRIANGLES
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NPSH 93 Figure 8-8. Performance cur
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NPSH 95 Figure 8-10. Leakage across
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NPSH 97 Figure 8-13. Plate inserts
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NPSH 99 Figure 8-17. Influence of p
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NPSH 101 Figure 8-19. Estimating K
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NPSH 103 Step 3: Determine KI* From
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Figure 8«22. Calculating NPSHA for
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NPSH 107 Figure 8-24. NPSHR cavitat
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NPSH 109 Notation KI Friction and a
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Part 2 Application
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9 by Erik B. Fiske BW/JP Internatio
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Vertical Pumps 115 Figure 9-2. Well
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Vertical Pumps 117 Figure 9-4. Subm
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Vertical Pumps 119 Figure 9-6. Inst
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Vertical Pumps 121 Figure 9-8. Barr
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Vertical Pumps 123 • Loading pump
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Vertical Pumps 125 Wet Pit Pumps Th
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Vertical Pumps 127 • Fresh water
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Vertical Pumps 129 Condensate and H
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Vertical Pumps 131 mally insulate w
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Vertical Pumps 133 Figure 9-15. Imp
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Vertical Pumps 135 checked for corr
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Vertical Pumps 137 crating paramete
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10 Pipeline Pipe line, Waterflood,
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Pipeline, Waterflood and CO 2 Pumps
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Pipeline, Waterfiood and CO 2 Pumps
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Figure 10-11. Performance change wi
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Figure 10-13. Seven-stage pump dest
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Pipeline, Waterflood and COa Pumps
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11 By Edward Gravelle Sundstrand Fl
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High Speed Pumps 175 History and De
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High Speed Pumps 177 Figure 11-2. (
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High Speed Pumps 179 some portion o
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High Speed Pumps 181 This is to say
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High Speed Pumps 183 This expressio
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High Speed Pumps 185 Figure 11-3. P
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High Speed Pumps 187 As an aside, p
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High Speed Pumps 189 Figure 11-5. I
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High Speed Pumps 191 Figure 11-7. I
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High Speed Pumps 193 Figure 11-9. R
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High Speed Pumps 195 Figure 11-10.
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High Speed Pumps 19? Figure 11-11.
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High Speed Pumps 199
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High Speed Pumps 201 Figure 11-13.
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High Speed Pumps 203 nal bearings a
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High Speed Pumps 205 Barske, U, M.,
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Double-Case Pumps 207 jected to ext
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Double-Case Pumps 209 Figure 12-3.
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Double-Case Pumps 213 ally by split
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Double-Case Pumps 215 The throttle
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Figure 12-11. pump for 4,000 psi In
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Double-Case Pumps 219 so that the t
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Doubte-Case Pumps 223 Volute Casing
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Double-Case Pumps 225 5. Survey of
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Slurry Pumps 227 An approximate com
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Slurry Pumps 229 Figure 13-2. Nomog
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Slurry Pumps 231 Table 13-2 Alloys
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Slurry Pumps 233 Figure 13-3. Class
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Figure 13-4, (A) (B) (C)
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Slurry Pumps 237 There is little to
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Figyre 13-7, (courtesy Pumps, Inc.)
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Flgyr« 13-8, with (courtesy Goulds
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Slurry Pumps 243 ing the pump speed
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Slurry Pumps 245 Where there exists
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Hydraulic Power Recovery Turbines 2
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Figure 14-14. Internally adjustable
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14-22, Flow of hydraulic recovery a
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15 by Frederic W. Buse Ingersolf-Ra
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Chemical Pumps Metallic and Nonmeta
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Driver Chemical Pumps Metallic and
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Part3 Mechanical Design
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16 Shaft Design and Axial Thrust Sh
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Shaft Design and Axial Thrust 335 S
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Shaft Design and Axial Thrust 337 W
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Shaft Design and Axial Thrust 339 T
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Shaft Design and Axial Thrust 341 b
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Shaft Design and Axial Thrust 343 K
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Double-Suction Single-Stage Pumps S
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Shaft Design and Axial Thrust 347 F
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D (with subscript) P D P s T T (wit
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Mechanical Seals 355 Figure 17-1. M
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Mechanical Seats 357 Figure 17-2B.
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Mechanical Seals 359 Figure 17-2D.
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Mechanical Seals 361 Figure 17-4. H
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Mechanical Seals 363 Pressure-Veloc
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Mechanical Seals 365 The temperatur
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Mechanical Seals 367 Figure 17-7. B
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Page 388 and 389: Mechanical Seals 373 Classification
Page 390 and 391: Mechanical Seals 375 Double seals m
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Page 396 and 397: Mechanical Seals 381 Table 17-4 Tem
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Page 410 and 411: Mechanical Seals 395 The measured l
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Page 436 and 437: Vibration and Noise in Pumps 421 Re
Page 438 and 439: Vibration and Noise in Pumps 423 me
Page 440 and 441: Vibration and Noise in Pumps 425 in
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Page 444 and 445: Vibration and Noise in Pumps 429 ot
Page 446 and 447: Vibration and Noise in Pumps 431 Fi
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Page 452 and 453: Vibration and Noise in Pumps 437 up
Page 456 and 457: Vibration and Noise in Pumps 441 na
Page 458 and 459: Vibration and Noise in Pumps 443 A
Page 468 and 469: Vibration and Noise in Pumps 453 Re
Page 472 and 473: Vibration and Noise in Pumps 457 Ac
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Vibration and Noise in Pumps 469 Be
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Vibration and Noise in Pumps 471 Fi
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Vibration and Noise in Pumps 475 Vi
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Vibration and Noise in Pumps 489 pe
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Vibration and Noise in Pumps 491 th
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Vibration and Noise in Pumps 4S3 fo
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Part 4 Extending Pump Life
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19 by Malcolm G. Murray, Jr. Murray
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Alignment 499 Figure 19-2. Pump dam
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Alignment 501 The best designs fail
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Table 19-1 Vertical Alignment Movem
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Table 19-2 Continued Horizontal Ali
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Alignment 507 bearing motors becaus
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Alignment 509 meet results. It shou
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Alignment 511 Determination of Tole
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Table 19-3 Continued Primary Alignm
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Alignment 515 Figure 19-3 A & B. Tw
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Table 19*4 Continued Methods of Cal
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Alignment 510 parallelism/perpendic
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Alignment 521 Table 19-5 continued
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Alignment 523 3. Essinger, J. N., B
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Rolling Element Bearings and Lubric
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Roiling Element Bearings and Lubric
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Roiling Element Bearings and Lubric
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Failure Analysis Mechanical Seal Re
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Table 21-2 Causes of Seal Failures
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Mechanical Seal Reliability 561 ^mi
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Mechanical Seal Reliability 563 Sea
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Mechanical Seal Reliability 565 run
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Reliability Mechanical Seal Reliabi
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Index A thermal growth, 519-522 ver
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Critical speed analysis. See also V
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Index 573 inlet angle, 37 classific
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Index 575 Shaft design, 333-343 ind
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double, 52-54 velocity ratio, 50-51
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Centrifugal Pumps Design and Application 2nd ed - Val S. Lobanoff, Robert R. Ross (Butterworth-Heinemann, 1992)

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