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  • Users: Eabrar
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  1. Eabrar

    Steel structure

    Hi, We require some structure material urgently, but the material available in the market is not of AISC standard. The structural material quoted by the vendor have web thickness lower and have flange thickness larger then that stated in AISC. Vendor have also quoted that the moment of inertia...
  2. Eabrar

    Pump capacity is outside prefered opertaing range

    Big Inch..... The ranges given are proposed by the Vendor. We only provided normal and rated capacity. NORMAL CAPACITY - 60.9 m3/hr RATED CAPACITY - 70 m3/hr Please also note that this pump has a minimum flow line. And minimum stable continuous flow is 40 m3/hr. And as far as acceptance is...
  3. Eabrar

    Flexible or Rigid Coupling

    Thanks guys. The information provided is very helpful and surely help me out in my decision. I would go for flexible coupling design. I have also come across with a design in which there is an intermediate bearing housing between pump and the motor. This design involves two set of coupling, one...
  4. Eabrar

    Pump capacity is outside prefered opertaing range

    For 25362.... The vendor is offering performance and mechanical tests but the same will be done at the end when we have a machine built up. At that time if the vibrations are high then i think there will be very limited options. This is the right time to stop him and make as per requirements...
  5. Eabrar

    Pump capacity is outside prefered opertaing range

    Thanks Artisi for the post. In my case there is a little problem. We have hired a contractor to do correspondense with different vendors for miscelleneous procurements. What happened was, the contractor selected a vendor to do the job and ordered the equipment. When i noticed the discrepency i...
  6. Eabrar

    Flexible or Rigid Coupling

    Thanks for the replies guys. I have also considered the same but a senior machinery engineer told me that you also have to see the fluid which you are pumping. Mechanical seals have very fine clearances between the seal faces and donot encourage the axial movement to be acted on them in vertical...
  7. Eabrar

    Flexible or Rigid Coupling

    Thanks for the reply Artisi. At the time pump type and motor configurations are not final. The Situation is in requisition stage. If the configuration is known then it will be quite straight to finalize the coupling, for e.g if the vendor is giving the thrust bearing in motor then the whole of...
  8. Eabrar

    Pump capacity is outside prefered opertaing range

    Hi to all; There is a problem facing to me during selecting a high pressure ammonia pump. the characteristics are as follows; Service - Ammonia Type - Centrifugal (Horizontal) Pressure discharge - 156 kg/cm2 Speed - 6500 rpm capacity - 60.9 m3/hr Prefered Range - 78.2 to 134 m3/hr Allowable...
  9. Eabrar

    Flexible or Rigid Coupling

    I am going to select a pump which is of following characteristics; TYPE - Vertical Fluid - Steam condensate Capacity - 50 m3/hr Temp - 98 deg C (max) Seal - Mechanical type Now my question is "Which type of coupling whould be better for this vertical condensate pump". My experience is that...
  10. Eabrar

    Insulating joints

    1. I need some literature about bell and spigot type insulating joints (natural gas lines cathodic protection system). 2. I need names of few reputed (european, american) manufacturers of insulating joints. Regards,
  11. Eabrar

    acoustic analysis book

    Please advise me book(s) on reciprocating compressor piping design and containing practical examples (problems)using acoustic analysis. Regards,
  12. Eabrar

    Strucutre analysis Book

    Hello, Please advise me book(s) of structure designing using staad pro software. The book(s) should contain different examples (solved problems) using staad pro. Regards,
  13. Eabrar

    Saline water for Concrete Mix

    Hi, I have some questions regarding quality of water suitable for concrete mixing: 1. Which standard define quality of water (i.e TDS, Electric conductivity, sulphates, cholrides etc) suitable for concrete mixing? 2. Can water with high value of total dissolved salts used for mixing of...
  14. Eabrar

    Tekla Xsteel

    Hi I just want to have some know how about Tekla Xsteel. Do anybody knows about any site which provide tutorials or help for Tekla Xsteel? Best regards, Abrar
  15. Eabrar

    Galvanized anchor bolts

    Thanks for ur prompt replies.
  16. Eabrar

    Galvanized anchor bolts

    Can embrittlement be a concern in diameters (42mm and 36 mm in my case)?
  17. Eabrar

    Galvanized anchor bolts

    Hello We are converting the CO2 Removal Section at our Ammonia Plant from conventional Benfield system to Benfield LoHeat System. Anchor bolts of material ASTM A307 will be installed on heavy steel structure, carrying a load of 350 tons. The supplier has offered hot dip galvanized anchor...
  18. Eabrar

    Galvanized anchor bolts

    Hello We are converting the CO2 Removal Section at our Ammonia Plant from conventional Benfield system to Benfield LoHeat System. Anchor bolts of material ASTM A307 will be installed on heavy steel structure, carrying a load of 350 tons. The supplier has offered hot dip galvanized anchor...
  19. Eabrar

    Galvanized anchor bolts and embrittlement

    Thanks Rob for ur valuable reply. If u can search more information, it will be a great help!
  20. Eabrar

    Galvanized anchor bolts and embrittlement

    Hi dears! Currently i m involved in a project of steel structure with pile foundations. Total load on foundations is 350 Tons. Anchor bolts of material ASTM A307 are to be fixed in concerete fundations. These bolts are ugently requirement of my project otherwise whole project may delay. Zinc...

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