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  1. Neel.mech

    NFPA 20 : Low suction pressure & flow at fire pump

    LittleInch, what do you mean by random data, thats the hydrant test flow data( canada) & Pump. Its clear that 4" doesnt work, its on NFPA 20 Table 4.28 .tested as per NFPA 291, to understnd static and dynamic & hydrant testing. its a design problem, i have a new consultant working on it, just...
  2. Neel.mech

    NFPA 20 : Low suction pressure & flow at fire pump

    @ cdafd - thank you for replying. option 2 , sharing incoming underground .
  3. Neel.mech

    NFPA 20 : Low suction pressure & flow at fire pump

    @ skdesigner -thank you for clarifying, appreciate the answer, i will start chasing the designer. Have a great day!
  4. Neel.mech

    NFPA 20 : Low suction pressure & flow at fire pump

    hello all, some more additional info , see pump data attached https://files.engineering.com/getfile.aspx?folder=e651b96f-09b3-44f6-99b8-114c2be0710b&file=FP.PNGhttps://files.engineering.com/getfile.aspx?folder=e651b96f-09b3-44f6-99b8-114c2be0710b&file=FP.PNG
  5. Neel.mech

    NFPA 20 : Low suction pressure & flow at fire pump

    Good day, @ LittleInch : thank you, appreciate your answer, sorry I have tried attaching hydrant test data , I have done it again but if it cant be access use the link below, https://files.engineering.com/getfile.aspx?folder=e2f24e37-302d-472e-913e-66f3f7f05478&file=619.PNG @ skdesigner ...
  6. Neel.mech

    NFPA 20 : Low suction pressure & flow at fire pump

    i will , appreciate it . thank you.
  7. Neel.mech

    NFPA 20 : Low suction pressure & flow at fire pump

    yea, there was. you have helped me out on that one. Please don't mention the building name and location because there is security requirements i have to follow, I appreciate that.
  8. Neel.mech

    NFPA 20 : Low suction pressure & flow at fire pump

    Thank you Guys. Just to clarify the 300 m run has a lot of elbows both horizontal and vertical, there are elevation changes within the building approx sum it up to 30 ft. Also, another thing i have noted is that about 20 ft before entering the fire pump room, they have down sized the pipe to...
  9. Neel.mech

    NFPA 20 : Low suction pressure & flow at fire pump

    hello all, I working on a weird project, we have a dedicated fire pump ( 750 gpm @ 60 psi) for a foam system which is tapped off from sprinkler tree. Distance b/w fire pump & sprinkler room is about 300 meters. we are getting only 170 gpm and about 5 psi at suction and fire pump didn't kick...
  10. Neel.mech

    water supply booster pump

    thank you very much guys ....
  11. Neel.mech

    water supply booster pump

    Thank you , Every one for all your replies. . Bimr , my project is in Saudi Arabia , there we have reverse osmosis plant installed for water supply .In Saudi , all standards are same as american standards. so this is an industrial area, for a petroleum refinery . so all these are...
  12. Neel.mech

    water supply booster pump

    thanks everybody for all your advises, i appreciate u all . so it should be safe to go for 40- 50 gpm pump ? so i can go for a smaller pump with by ignoring the other methods.
  13. Neel.mech

    water supply booster pump

    Dear all , thanks for all your comments. But when i try to add each villa of 9 gpm at least, i have around 40 villas , that gives me a even bigger value of 360 gpm. can guys please you suggest me a method so that i can submit calculations .how can i calculate demand for each villa ? as fixture...
  14. Neel.mech

    water supply booster pump

    please find the attachment.http://files.engineering.com/getfile.aspx?folder=e858b6ba-8631-4443-b6da-d7ee16e72e4b&file=S-00-TAA-L-03-006-012_Water_Supply_Layout.pdf
  15. Neel.mech

    water supply booster pump

    hello everyone , i have been trying to find the booster pump discharge for a township of villas , i have tried using Hunters method in IPC . the capacity says to be 208 gpm .Now consultancy is not satisfied with the pump size , they are recommending to recalculate as it is very high as per...
  16. Neel.mech

    fire pump calculations

    thank you MortenA...
  17. Neel.mech

    fire pump calculations

    ProcessHVAC , THANK YOU VERY MUCH...
  18. Neel.mech

    fire pump calculations

    thanks for your reply ProcessHVAC. As i am just starting my career , do you have any idea what is the normal discharge pressure at the hydrants..
  19. Neel.mech

    fire pump calculations

    hello everyone , i need some help regarding calculating residual and static pressures in a fire water system.i am working on a closed loop pipe network system , with a fire demand of 2500 gpm for 2 hours . i have calculated frictional losses using longest run method ,i could find the...
  20. Neel.mech

    water and fire networks

    thank you Big Inch ...

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