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 MintJulep 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. jithin john

    flow serve pump q=100m3/h & head 50m but delivering only 35m3/h

    Thankyou everyone for your replies this is a replacement pump .There were 2 sets of KSB pumps with head 50m and 35m3/h flow for one pump. But the actual flow was around 24m3/h. So decided to replace with flow serve pump @50M and 100m3/h . pump sets are in parallel measuring flow using Siemens...
  2. jithin john

    flow serve pump q=100m3/h & head 50m but delivering only 35m3/h

    good evening friends , recently installed a new flow serve pump with flow=100m3/h and head 50m and is delivering only 35m3/h.please explain the possible reasons were we have gone wrong . Thank you all...
  3. jithin john

    Hole in Pipeline -Dl DN 600

    thank you every one for your replies , its a ductile iron pipe with cement lining .DN 600 pressure in pipe around 8-12 bar flow 500-600 m3/h the pipe was laid 3 meters below the ground service ; more than 10 years recently there was a leak .while trenching we found heavy rocks...
  4. jithin john

    Hole in Pipeline -Dl DN 600

    Can anybody tell me how this hole formed in this pipe line ? thank youhttps://files.engineering.com/getfile.aspx?folder=6eb6c957-8886-4227-9201-491acbcd3710&file=WhatsApp_Image_2020-02-02_at_9.25.46_PM.jpeg
  5. jithin john

    What type of coupling to use to connect dn 600 schedule 10mm and dn 600 schedule 15 mm di pipe

    thankyou every one for your responses is there any vjc coupling available for 635-640 od range
  6. jithin john

    What type of coupling to use to connect dn 600 schedule 10mm and dn 600 schedule 15 mm di pipe

    hello every one , What type of coupling can be used to connect dn 600 schedule 10mm and dn 600 schedule 15 mm di pipe. please also mention the od range . thank you
  7. jithin john

    Capacitor Bank C- Meaning ?

    Hello all , Can anyone explain what is it meant by this c- in the image attached Thank you https://files.engineering.com/getfile.aspx?folder=0bcd8bb6-28a6-43ad-a835-e3b690e62a98&file=WhatsApp_Image_2020-01-19_at_12.08.17_PM.jpeg
  8. jithin john

    Non return valve replace

    Hello every one, Please tell the difference between the flange /dimensions of a NRV of DN80 PN 16 & DN 80 PN25 I need to replace the NRV(Dn 80 Pn 16)of a pump.the delivery pressure of the pump is 16 bar ,so i was planning to replace the NRV with pn 25.so the dimensions ,bolt size of this DN...
  9. jithin john

    Surge vessel -Water line

    thank you for the reply .
  10. jithin john

    Surge vessel -Water line

    Thank you for the reply .we have Two surge vessels connected to the main discharge line of four pumps connected in parallel .The design pressure of the surge vessel is 9 bar whereas the discharge pressure of one pump is also around 9 bar .at a time 3 pumps will be operational.how will i know...
  11. jithin john

    Surge vessel -Water line

    Please tell what is the use of connecting 2 or more surge vessels in parallel to a pump discharge line ?
  12. jithin john

    pump motor tripping while stopping

    https://files.engineering.com/getfile.aspx?folder=99e0ef33-f5b1-4527-b429-86d32e710b2b&file=IMG_20191006_121537153.jpg https://files.engineering.com/getfile.aspx?folder=20ef6940-add3-421f-b499-c1346359f27a&file=IMG_20191006_121513635.jpg
  13. jithin john

    pump motor tripping while stopping

    Thank you every one for your replies. Itsmoked :this was not always the case .the problem arises before 5 to 6 months and our company just got the new maintenance contract this pump is operated through scada and a mov is also there after discharge and is always kept open waross: There is a...
  14. jithin john

    pump motor tripping while stopping

    A abb squirrel cage 3 phase induction motor 415V ,585A ,1455 rpm coupled to a kirloskar multi stage pump with h=320m,q=216m3/hr power 215kw ,rpm 1487 is tripping while stopping the pump. While stopping the motor the current reading is going high and motor is going to trip(please check video)...
  15. jithin john

    what are the reasons for a pump motor to get trip?

    A abb squirrel cage 3 phase induction motor 415V ,585A ,1455 rpm coupled to a kirloskar multi stage pump with h=320m,q=216m3/hr power 215kw ,rpm 1487 is tripping while starting the pump.does this problem occurs due to water hammering .
  16. jithin john

    SURGE VESSEL MAINTENANCE

    PLS SHARE INFORMATION ABOUT SURGE VESSEL OPERATION AND MAINTENANCE

Part and Inventory Search

Back
Top