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. Abhi1712

    Pressure drop across pump discharge valve.

    I would like to mention about pipe size at discharge side: 1)My discharge line upto 2nd pressure gauge is 2 inch nominal size. (as shown in figure 1 of provided document) all of my PG1, PG2, Flowmeter, valve on that line. 2) Then I connected hosepipe of 3 inch nominal size upto tank (as shown in...
  2. Abhi1712

    Pressure drop across pump discharge valve.

    To PUMPyour help.SONLY & CVG: I have solved the problem. It was because of increaseing pipe diameter in discharge side. Initially there is 2" pipe after second PG there is 3" pipe dia. This is root cause of problem. Thank you for help.
  3. Abhi1712

    Pressure drop across pump discharge valve.

    To QUARK: Black hose before meter is a priming point. I prime pump by closing discharge valve and move air from that hose. To PUMPSONLY: PG#2 was before flow meter PG1 & PG2 are in PSI. by varying discharge gate valve from fully open to fully closed I got following readings. The flow meter dP...
  4. Abhi1712

    Pressure drop across pump discharge valve.

    Dear PUMPONLY, I really appreciate your guidance. I have changed taping point for pressure gauge. As you stated, I require digital pressure gauge to measure minor losses. Am I right? But 60 PSI pressure drop is too much. This might be majorly because of Turbine meter. Right? Any more...
  5. Abhi1712

    Pressure drop across pump discharge valve.

    Thank you for ur reply. To IONE: yes discharge goes to atmospheric tank. You are right I did not get anything in that condition. I was varing conditions. To PUMPSONLY: They have not indicated Pressure gauge location in HI 1.6 standard. Can you please suggest how much distance should be between...
  6. Abhi1712

    Pressure drop across pump discharge valve.

    Hello everybody, Centrifugal Pump performance test (ANSI / HI 1.6 standards) Gate valve: full open; Water Flowrate: 260 GPM(+/-1); Discharge pressure before gate valve 60 PSI; Discharge pressure after gate valve 0 PSI. Why there is 60 psi pressure drop across the valve? I have tried...
  7. Abhi1712

    Hydrotesting of centrifugal pump.

    Sorry...i was asking for performance testing....
  8. Abhi1712

    Hydrotesting of centrifugal pump.

    Hello Everybody, I am associated with new pump manufacturer. For me, it is understood that hydrotesting is required to generate (centrifugal) Pump curve and NPSHR calculation. Will you please tell me which factors should be consider during hydrotesting of pump? like tests the pump with water at...
  9. Abhi1712

    Difference between API 610 & ANSI B73.1 Crude oil transfer pump.

    Hello Everybody, What is technical Difference between API 610 and ANSI B73.1 Crude oil transfer pump? I understand API 610 pumps are more costly compare to ANSI B73.1 pump. Can we add ANSI B73.1 in crude oil refinery system where other pumps are API610? Which factors should we consider for...
  10. Abhi1712

    Time required to transfer crude from De-salter to distillation tower

    To mbeychok, Thank you for your reply. I am looking for average crude oil velocity. In fact I am looking for particular xyz refinery example in operation. If you or anybody working with refinery, can share practical experience.
  11. Abhi1712

    Time required to transfer crude from De-salter to distillation tower

    To 1gibson, Thank you for your reply. I am looking for crude oil velocity instead of volumetric flow rate. In fact I am looking for particular xyz refinery example in operation. If you or anybody working with refinery, can share practical experience.
  12. Abhi1712

    Difference between API 610 and ANSI B73.1 Crude oil transfer pump.

    Hello Everybody, What is technical Difference between API 610 and ANSI B73.1 Crude oil transfer pump? I understand API 610 pumps are more costly compare to ANSI B73.1 pump. Can we add ANSI B73.1 in crude oil refinery system where other pumps are API610? Please find attached document.
  13. Abhi1712

    Difference between API 610 and ANSI B73.1 Crude oil transfer pump.

    Hello Everybody, What is technical Difference between API 610 and ANSI B73.1 Crude oil transfer pump? I understand API 610 pumps are more costly compare to ANSI B73.1 pump. Can we add ANSI B73.1 in crude oil refinery system where other pumps are API610? Please find attached document.
  14. Abhi1712

    Time required to transfer crude from De-salter to distillation tower

    Hello Everybody, I am working on project to calculate average time required for crude oil to transfer between initial unit operations such as crude oil storage tank, desalter, crude oil furnace and distillation tower. I know it is continuous process. Will you please tell me how much (average)...
  15. Abhi1712

    Time required to transfer crude from De-salter to distillation tower

    Hello Everybody, I am working on project to calculate average time required for crude oil to transfer between initial unit operations such as crude oil storage tank, desalter, crude oil furnace and distillation tower. I know it is continuous process. Will you please tell me how much (average)...
  16. Abhi1712

    Installation of valves at suction and discharge side of pump.

    Hello everybody, Can you please tell me what kind of valves should be installed at suction and discharge side of centrifugal pump in general practice?(by considering friction losses) Pump details: Crude oil transfer from tank1 to tank2, Suction side pressure-10 psig with 4" nominal size pipe...
  17. Abhi1712

    What should be a minimum tank level to operate pump?

    To rmw, Thank you for your reply. This centrifugal pump will be use for crude oil transfer. We just developed pump and I think we have to prepare performance/characteristics curve and NPSHR curve for pump. But since it is going to be used for crude oil i am doubtful to do testing with WATER...
  18. Abhi1712

    What should be a minimum tank level to operate pump?

    To BigInch, Thank you for your reply. Will you please explain in detail how to define tank level (suction side). I have to instruct operators for installing pump at various locations. Also if tank level is below required then we have to provide "Booster pump" to maintain suction pressure 8 psia.
  19. Abhi1712

    What should be a minimum tank level to operate pump?

    To VPL: Thank you for your reply. We are the Pump manufacturer. Can you please explain in detail how to calculate NPSHR? or any useful link to calculate NPSHR? We are not designing the system. We are going to install pumps at various refineries.
  20. Abhi1712

    What should be a minimum tank level to operate pump?

    I am working with a small pump company. (Company is newly started). I am having centrifugal pump of maximum capacity of 132 GPM(crude oil transfer). Minimum suction pressure required at pump is 8 psi. I have no data available for NPSHR. So I have to consider crude oil tank level where the pump...

Part and Inventory Search

Back
Top