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Recent content by SJEC

  1. SJEC

    Sea water lift pump

    Hi Artisi The number has not been finalized. The preliminary numbers are listed below. The flow will be 1000m3/h, and DP will be 1400 kPag. At this stage, we already talked with several European suppliers. However,the project is located in NA, and we prefer to find some local suppliers. Hi...
  2. SJEC

    Sea water lift pump

    Thanks for your help EdStainless It does not have to be a Hydraulic pump. I actually prefer to have a 90 degree gear operated drive. I already talked with Sulzer. They can provide the pump but they will not package it. I will talk with peerless later. Thanks
  3. SJEC

    Sea water lift pump

    Hi I am looking for a diesel drive seawater lift pump package which including pump, diesel engine, piping, instrument etc. similar to the one in the following link https://www.framo.com/globalassets/pdf-files/Hydraulic-firewater-pumps.pdf Could you give me some vendor's name or website in...
  4. SJEC

    Take account corrosión allowance in flange thickness? in a bolted semiconfined gasket conection.

    Considering CA on Flange thickness typically is not required. Reason: 1. your flange both sides are not directly contact with the liquid. so there is no corrosion. 2. Flange design is typically rigid design. a local corrosion (such as inter corner of flange) will not affect integrity of flange.
  5. SJEC

    the vendor for field erected spherical vessels/tanks?

    I know CBI can do this Job. If there is anybody else who can field erect large spherical vessel in north american? Please give me name or website. Thanks
  6. SJEC

    Tank overturning design criteria.

    some background info from API meeting about why and how the change happen in 12th version API 650. 1) Open top tanks are subjected to no roof wind uplift. Under current rules, controlling formulas see 60% of the design horizontal wind in the empty condition. This results in overturning that...
  7. SJEC

    Tank overturning design criteria.

    I am working on a tank which is required non-anchorage design due to civil reason. the tank is equipped with supported cone roof ( roof is supported by structure column from tank floor and beam). The 12th edition API 650 is giving two criteria for us to choose. Unanchored tanks shall meet the...
  8. SJEC

    If fatigue pressure vessel has to be designed per ASME VIII div 2?

    I am working on a fatigue pressure vessel (Based on Div 2 critiria). The question is that if the vessel can be designed, fabricated and registrated as per div 1 vessel and only add div 2 fatigue calculation on top of this? or the whole vessel has to be designed, fabricated and tested as per...
  9. SJEC

    a ring at pump inlet to improve the NPSH?

    Artisi 1 pump type OH2 2 YES, both meet requirement now.(after adding the ring) 3 on test loop. the pump is still in manufactory's shop. 4 The curve is availabe. but I am sorrym, can not post the test curve here. Thanks
  10. SJEC

    a ring at pump inlet to improve the NPSH?

    Thanks for all of above advice. the pump have been tested, yes, the NPSHr became lower than requirement after installation of the ring ( I even do not know how to call it). However, the power efficiency became lower than expacted number. Right now, we do not have any other choice. Since the...
  11. SJEC

    a ring at pump inlet to improve the NPSH?

    We have ordered a large liquid centrifigul pump (over 500HP) . After running the test, the NPSH can not meet the requirment. So the vendor offer two options to us. 1. add a inducer which I can understand but is not allowed by the client's spec. 2. install a fixed ring at inlet of pump. It will...
  12. SJEC

    How to change the wizard to SI unit?

    attachementhttp://files.engineering.com/getfile.aspx?folder=136025bc-eba2-44c9-b6b0-e9bd148e2812&file=error.JPG
  13. SJEC

    How to change the wizard to SI unit?

    MattHeilandt Which window are you talking about? Could you kindly check my attachement? Please note, the right bottom the unit has been setup to SI. Thanks
  14. SJEC

    How to change the wizard to SI unit?

    I try F7 to mode options. It does not work for me.
  15. SJEC

    How to change the wizard to SI unit?

    I am working on a new project which are using SI unit. However, the wizard always use US unit as default when I creat a new vessel. Yes, I can change all of them to SI unit after the wizard. However, Tom, Do you know how to change unit during the wizard? It will make my life easy. Thanks
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