Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. Bultum

    Mechanical Seal

    Hi All, Thank you for the response. #littleinch - That is definitely one option. I will look further into that. #JJpellin are you saying if we go with mechanical seals, flushing would need to be provided for all the pumps simultaneously? is that the case for pumps on your surface condenser...
  2. Bultum

    Mechanical Seal

    Hi, We have a situation where we operate three horizontally split case centrifugal pumps that are connected to the same suction line and discharge line. When operating under suction mode, the gland packing are known to leak air into the system. Usually it's one pump duty and two of the pumps...
  3. Bultum

    Counter weight on the foot valve

    HI, I am currently working on a pump station that is struggling when the water level is below the pumps centre line. It has been suggested the foot valve located on the suction side is causing too much head loss since its fitted with a counter weight. My understanding is the purpose of the...
  4. Bultum

    Operating Pumps in paralle even thoough they are not originally designed for that purpose

    One last question looking at the comment @georgeverghese made, i believe he is talking about formation of Vortex. is there like an anti-vortex device that can installed on the inlet pipe? i have looked online, but besides a lot of theory, i couldn't find any product on the market.
  5. Bultum

    Operating Pumps in paralle even thoough they are not originally designed for that purpose

    Thank you to everyone who has given me ideas. I have located the lantern ring, i will work on renewing the packing glad and investigate how supply pressurised water to the packing gland.
  6. Bultum

    Operating Pumps in paralle even thoough they are not originally designed for that purpose

    By the way Thank you to everyone who has shown interest in my query. Thank you LittleInch, Artisi, goergeverghese, 1gibson.
  7. Bultum

    Operating Pumps in paralle even thoough they are not originally designed for that purpose

    @georgeverghese, i haven't thought about the air getting in through intake nozel at the tank. is that possible, given that the tank is 4m deep below the pump intake nozel. The suction line is connected to the bottom of the tank. The tank gets its water from a WTP. If for any reason there is a...
  8. Bultum

    Operating Pumps in paralle even thoough they are not originally designed for that purpose

    I have the pump curves, but the system curves are old. i'm not sure how to make one. These pumps maintain pressure in town. We have numerous valves, PRVs along the way and i'm not sure how to incorporate those onto my system curve. Graduate engineer problem @LittleInch i am not sure what you...
  9. Bultum

    Operating Pumps in paralle even thoough they are not originally designed for that purpose

    @littleinch, yes running like that might not work well. But they operate under this condition maybe two or max three times a year. Other times, The water level is always higher than the pump so as long as there is positive pressure going in, they work perfectly fine. My main aim is to prevent...
  10. Bultum

    Operating Pumps in paralle even thoough they are not originally designed for that purpose

    Please refer to the following diagram for more clarity. Ask question whatever is not clear. https://files.engineering.com/getfile.aspx?folder=540f6565-dc94-4b66-aff6-6f9a1ee548ff&file=IMG_0008_(003).jpg
  11. Bultum

    Operating Pumps in paralle even thoough they are not originally designed for that purpose

    HI, I am currently working on rectifying anissues at a pump station. In short I have three pumps connected to one suction line and one discharge line. The pumps are designed to operate individually, one duty and 2 stand by. The pumps work perfectly fine as long as there is a positive pressure...

Part and Inventory Search

Back
Top