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  1. WissamH

    ANSI/HI Pump Station Design

    Hello, I am reading through the ANSI/HI 9.8 standard to be able to properly design a wastewater liftstation. I noticed that the standard uses D (bell outside diamter of the pump) to size the pump sump. While I know what D means when using dry wells, I am confused how to deterimine D when using...
  2. WissamH

    Pump Selection

    Artisi, Thank you for your comment.
  3. WissamH

    Pump Selection

    pierreuck and swazimatt, thank you for your kind responses. I am going to switch to another vendor where I can find more options,
  4. WissamH

    Pump Selection

    pierreik, thank you for your kind response and support. 80-250 appears to work. But it would be working too far away from its BEP. Don't you think so? Please see the attached image.https://files.engineering.com/getfile.aspx?folder=46aab44a-dce0-442d-88a3-6c03e0333f63&file=Untitled.jpg
  5. WissamH

    Pump Selection

    Dear Pierreik and LittleInch, apologies for my poor explanation. Yes, the 105 m is the TDH. Pierreik, which booklet you are referring to? I would appreciate it if you can provide a link.
  6. WissamH

    Pump Selection

    Pierreick, The information in brackets (Q = 75.6 m3/hr, H = 105 m) is my system operating point.
  7. WissamH

    Pump Selection

    As a follow-up to my previous post, the pump is supposed to be installed in a pumping station and transport water for water supply.
  8. WissamH

    Pump Selection

    Dear shvet, I used the KSB Easy Select tool using the link you provided. However, when I entered my required Q = 75.6 m3/hr and H = 105 m, the tool didn't select any of the products for me. I looked at the performance curves available in the catalog, I could not find any of the pumps with a...
  9. WissamH

    Pump Selection

    Pierreick and GD2, thank you so much for your support.
  10. WissamH

    Pump Selection

    pierreick, thank you so much. I will take a look.
  11. WissamH

    Pump Selection

    shvet, thak you so much for your kind response. I will take a look and let you know how it goes.
  12. WissamH

    Pump Selection

    Dear LittleInch, I did not mean to write an email. The analysis I did revealed that I will need a pump that can supply a flow rate of Q = 21 liters/sec at a pressure head H = 105 m. Now I need to select a pump that can give me the required conditions mentioned. I plan to select a pump from KSB...
  13. WissamH

    Pump Selection

    Dear All, I need to pump 21 L/s at 105 m of head into a water network. The pump I plan to purchase is going to be from KSB. Can you please help select a suitable pump based on the design values I mentioned? Kind regards,
  14. WissamH

    Guidelines for Selecting the Freeboard in Ground Storage Tanks

    Dear fel3, Thank you so much for sharing the document. It is super useful.
  15. WissamH

    Guidelines for Selecting the Freeboard in Ground Storage Tanks

    Hi JStephen, Thank you so much. This looks to have the answer. Unfortunately, I don't have access to the document.
  16. WissamH

    Guidelines for Selecting the Freeboard in Ground Storage Tanks

    Dear fel3, I sincerely appreciate the time you dedicated to providing me with such a thorough response. Your insights have proven to be immensely valuable and have greatly aided me in my current situation. Thank you for your invaluable assistance. Warm wishes,
  17. WissamH

    Design of ventilation of potable water ground storage tank

    Dear bimr, thank you for your kind response. Dear fel3, this is exactly the approach I have used before. The only difference is that I used 100 mm pipes, so I came up with a larger number of pipes. Your response has boosted my confidence in the validity of my approach. Thank you.
  18. WissamH

    Guidelines for Selecting the Freeboard in Ground Storage Tanks

    LittleInch, thank you for your help posting the tank dimensions and material type.
  19. WissamH

    Guidelines for Selecting the Freeboard in Ground Storage Tanks

    Dear fel3, the storage tanks I am working on are reinforced concrete tanks. I would appreciate it if you could refer me to any AWWA guidelines for concrete storage tanks.
  20. WissamH

    Design of ventilation of potable water ground storage tank

    Dear LittleInch, I have a 50 cm of freeboard maintained above the water surface.

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