Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Selecting the right pump for the application

5,178 views

Published on

Selecting the right pump for the application -- what to consider

Published in: Engineering
  • Be the first to comment

Selecting the right pump for the application

  1. 1. Selecting the Right Pump Brian Gongol DJ Gongol & Associates, Inc. April 10, 2017 Iowa AWWA Short Course Ankeny, Iowa
  2. 2. ** The obvious questions **
  3. 3. What are we pumping?
  4. 4. What are the flow and head conditions?
  5. 5. Is this a replacement or a blank-sheet job?
  6. 6. Are there site constraints?
  7. 7. Are there statutory constraints?
  8. 8. ** Solids/no solids **
  9. 9. No solids
  10. 10. Minor/incidental solids
  11. 11. Reducible solids
  12. 12. Passable solids
  13. 13. Stringy solids
  14. 14. ** Suitability to purpose **
  15. 15. One condition forever?
  16. 16. Future conditions?
  17. 17. Relocation/portability?
  18. 18. Specialty fluids?
  19. 19. Trying to do one thing well?
  20. 20. Trying to do many things not so well?
  21. 21. Example: Risks with grinder pumps
  22. 22. Example: Duty and backwash w/same pumps
  23. 23. ** Flexibility **
  24. 24. Future conditions
  25. 25. New construction/industry
  26. 26. Pipe friction changes
  27. 27. Friction losses aren't just theoretical
  28. 28. ** Maintainability **
  29. 29. Can it be opened?
  30. 30. On-site, in-situ?
  31. 31. Requires a service shop?
  32. 32. Modifications to piping for removal?
  33. 33. ** Do you get advance warning of trouble? **
  34. 34. Visible indicators
  35. 35. Oil sight glasses
  36. 36. Seal failure warnings
  37. 37. ** Wearing concerns **
  38. 38. Chemicals
  39. 39. Inorganic solids
  40. 40. Corrosion
  41. 41. Cavitation
  42. 42. ** Four types of curves **
  43. 43. Steep system, steep pump
  44. 44. Steep system, flat pump
  45. 45. Flat system, steep pump
  46. 46. Flat system, flat pump
  47. 47. ** Systemic questions **
  48. 48. Duty only
  49. 49. Duty and jockey
  50. 50. Paced flow
  51. 51. Hydro-pneumatic tanks
  52. 52. Staged/series
  53. 53. Parallel
  54. 54. Parallel/series
  55. 55. ** Total life-cycle cost **
  56. 56. Hydraulic efficiency
  57. 57. Energy use
  58. 58. Maintenance efficiency
  59. 59. Expected useful life
  60. 60. Cost of downtime
  61. 61. ** Total system efficiency ** A much larger question than simple hydraulic efficiency
  62. 62. ** Hydraulic efficiency **
  63. 63. Clearances
  64. 64. Vanes
  65. 65. Coatings
  66. 66. Straight pipe
  67. 67. Suction diffusers
  68. 68. ** Maintenance efficiency **
  69. 69. Preventive/predictive maintenance
  70. 70. Knowledge-building through maintenance
  71. 71. Interchangeability of parts
  72. 72. Special tools to maintain
  73. 73. Special training to operate or maintain
  74. 74. Maintenance-friendly site layout
  75. 75. ** Durability/longevity **
  76. 76. How long will it last?
  77. 77. Longevity with maintenance
  78. 78. Longevity without maintenance
  79. 79. Can the system survive periods of neglect?
  80. 80. ** Backup operations **
  81. 81. Backup power
  82. 82. Backup pumps (on the shelf)
  83. 83. Backup parts
  84. 84. Backup parts kits (seals, rotating assemblies)
  85. 85. ** Examples **
  86. 86. Recessed lift station (140 gpm @ 50' tdh)
  87. 87. WWTP process (325 gpm @ 13' tdh) - sludge
  88. 88. Booster pump (14,000 gpm @ 130' tdh)
  89. 89. RDT wash booster pump (50 gpm @ 75' tdh)
  90. 90. Snow-making application  160 gpm @ 800' tdh  240 gpm @ 825' tdh  320 gpm @ 870' tdh
  91. 91. Brine waste (900 gpm @ 99')
  92. 92. Low-flow booster station (28,240' of pipe)  31 gpm @ 142' tdh  48 gpm @ 178' tdh
  93. 93. Portable (1000 gpm @ 20' tdh) - stormwater
  94. 94. Sewage lift station (300 gpm @ 50' tdh)
  95. 95. Combined sewer/high I&I  2,000 gpm @ 50' tdh  5,000 gpm @ 75' tdh
  96. 96. Questions?  Thank you for your time!  Brian Gongol  DJ Gongol & Associates  515-223-4144  www.gongol.net  info@gongol.net  @djgongol on Twitter  facebook.com/djgongol

×