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  1. nabeel3

    Jump over piping

    Dear all Thanks for your inputs. This was an enquiry we received from a petrochemical plant for a procurement and build work. I couldn't see any definition in the contract documents from the owner. Owner wants to change the service of a tank. Contractor has to install new piping from the pump...
  2. nabeel3

    Jump over piping

    Dear All what is a Jump over piping? Example:- Jump Over for Pump Suction line (16” size)
  3. nabeel3

    Tank Horizontal joints

    Thank you ,
  4. nabeel3

    Tank Horizontal joints

    Dear Experts Para 5.1.5.3 of 2020 Edition says "Unless otherwise specified, abutting shell plates at horizontal joints shall have a common vertical centerline". I am trying to understand it, but my relatively little experience in Tanks makes it difficult to understand. Any good Samaritan can...
  5. nabeel3

    ASME Sec 9, QW 451.1 and 451.2

    Dear Experts, In ASME Sec IX QW 451.1 is for the Transverse bend test and 451.2 longitudinal bend test. How can we decide when I have a specimen of thickness "t" which bend test is to be performed?
  6. nabeel3

    Pump Anchor Bolt

    Dear Our Pump Vendor provided this drawing and we proceeded with this. . Anchor Bolts and Levelling screw. Is this okay .
  7. nabeel3

    Pump Anchor Bolt

    Dear HTURKAK if there is no grout ,how the anchor bolt will stay fixed.
  8. nabeel3

    Pump Anchor Bolt

    Dear All This is a general detail for a Pump foundation anchor bolt. Is it required to fill concrete between pipe sleeve and anchor bolt in the below detail? This detail is from Hydraulic Institute standard HI-14.4
  9. nabeel3

    Multiple Electrodes in a WPS

    Dear All Can I mention multiple Electrodes in a Pre-Qualified WPS in accordance with AWS D1.1
  10. nabeel3

    GRE pipe for chilled water system.

    Moideen Have u tried CPVC Pipes?
  11. nabeel3

    GRE pipe for chilled water system.

    Dear Moideen Jointing of GRE piping is expensive compared to other non metallic piping. Why u decide to change ABS piping
  12. nabeel3

    Different BCD for Valve flange and Pipe

    Dear Joe591 Now i am planning to elarge the hole of GRE flange as a temporary solution. This is a running sea water pumping station.
  13. nabeel3

    Different BCD for Valve flange and Pipe

    Dear Joe591 It was directly attached to the Reducer. This is a GRE Piping work.
  14. nabeel3

    Different BCD for Valve flange and Pipe

    Below is the Existing pipe fitting upstream of the valve which has to be replaced. A strainer ,then this reducer after that 4 inch MOV that has to be replaced. That is the arrangement ,
  15. nabeel3

    Different BCD for Valve flange and Pipe

    Yes, its a GRE flat face flange for pipe. Our Engg team overlooked this. Today when we tried to change the valve after shut down of the plant we were shattered to see this.
  16. nabeel3

    Different BCD for Valve flange and Pipe

    Dear Little inch Yes mistake happened. You are correct the valve flange is of EN 1092. They offered us as in below, but we did not notice it. The valve lead time is about 4 or 5 months. can u please give more info about the conversion plate . That will be most helpful .
  17. nabeel3

    Different BCD for Valve flange and Pipe

    Dear All I have a situation as below in my work now. Replace an existing MOV (Gate Valve) size 4 inch with a new Super duplex MOV in a seawater line of 4 inch GRE piping. Bolt circle Dia of Pipe flange is 190.5 mm ,Rating Class 150 BCD of new Valve is 180 mm, Class 150. How to connect...
  18. nabeel3

    Submersible pump

    Dear Artisi 15-meter head and approximately 27 LPS flow
  19. nabeel3

    Submersible pump

    Dear Little inch I am in a situation now where i have to run 2-3 submersible pump in such a situation. i plan to install a float switch to solve this issue .
  20. nabeel3

    Submersible pump

    Dear All What are the possible mechanical damages for a centrifugal submersible pump operating in a condition with lesser than the minimum water level, daily 2 hours approximately possibly for two-three months continuously
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