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  • Users: IFRs
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  1. IFRs

    AutoCAD file conversion from inch to mm.........................

    DIK has it right. You can also enable alternate units and have both imperial and SI displayed. Type DDIM and edit the dimstyle you are using. You can also create a new DimStyle with the factors you want and apply that to your dimensions
  2. IFRs

    DIY radiant heat system

    floor radiant heat does not penetrate carpet well, your feet might like carpet better anyway
  3. IFRs

    Double Wall Tank

    API 650 petroleum storage double wall tanks are typical where real estate is not available and the exterior tank serves as containment in lieu of a bund or dike area. For instance for gasoline or jet fuel storage in cities fed by pipeline and emptied by trucks. These tank systems are both...
  4. IFRs

    Double Wall Tank

    Both should be atmospheric if they were built to API 650
  5. IFRs

    wheel time hole sizes

    One of my older cars had hub centric wheels but the studs were still a relatively slose fit, nothing like the gaps the OP has noted.
  6. IFRs

    Low suction nozzle

    Can you inject a cutting agent to make the mixture flow easily? In any case your low suction nozzle elevation will be based on the pump used and it's ability to work with viscous materials.
  7. IFRs

    ASCE 7-16 vs 7-22... use higher Sds?

    I would certainly make the client aware, and get in writing that they chose one over the other
  8. IFRs

    NORMAL PENTANE STORAGE TANK

    Pentane is gennerally not corrosive to the steels used in API 650 type aboveground storage tanks. However, I'd add 1/16" minimum becasue the tank inside will be exposed to air as you fill and empty, and most air contains some moisture content which can condense on the tank and fixed roof. If...
  9. IFRs

    Storage tank conversion from EFVRT to CRVT

    API 653 and API 650, but you'll need to get your own copies.
  10. IFRs

    Storage tank conversion from EFVRT to CRVT

    There are possibly commercial and or regulatory advantages to having a smaller tank rather than saying you are limiting the liquid level. The methodology is basically remove 3 meters off the top, add an API suppored cone roof. It's not rocket science, just basic tank work. Get three bids from...
  11. IFRs

    storae tank

    Add the specified corrosion allowance to everything that will get wet with product - things like the inside of the tank shell, all sides of the fixed roof support columns, shell nozzle pipes, the underside of the floating roof, etc.
  12. IFRs

    Checkered Plate On Metal Deck in Penthouse Floor

    Stainless steel self drilling screws are often SS 410 and will rust. This will look badly as well as not doing their job. If you drill holes, you can find SS self tapping screws that are austenitic SS and are much less apt to rust. Neither will hold well in the 18 gauge substrate, perhaps...
  13. IFRs

    How is pressure under tank bottom plate distributed?

    Yuu can include a small ring of liquid pressure into your ringwall design, it will add some moment, more if the ringwall is side inside. Don't forget that as the soils are compressed vertically, they try to expand horizontally, inducing tension in the ringwall.
  14. IFRs

    How is pressure under tank bottom plate distributed?

    Have you looked at API 650 Annex B? Did you account for the hoop stres sin the ringwall?
  15. IFRs

    Please what's the exactly meaning in the Annotaion note of drawing?

    9.5Z12 is a "Z" shape 9 1/2" tall made from 12 gauge material try this URL for a cut sheet 31.8 15/16 I think is 31'-8 15/16" long The abbriviations are more of a mystery but a girt manufacturer might know or they may be clarified on the drawing I'm sure others in this forum will help much...
  16. IFRs

    Import a part in a selected view.....

    If you are in Model Space, rotate it using the rotate command. If you want to rotate it ouf of the plane of the current UCS: on the command line UCSFOLLOW 1, then use the UCS command like UCS X 90 to change what you see, then rotate the object. use UCS W to change your perepctive to the default...
  17. IFRs

    Import a part in a selected view.....

    If you are using XRef that is, you normall get whatever is in model space, which is why only the object goes in model space and not dimensions, titleblock, notes, etc
  18. IFRs

    Import a part in a selected view.....

    You import the part. You get the part, not the orientation. It comes in as it was originally drawn. Once you have it, you can rotate it in Model space to the desired orientation or manipulate the viewport's UCS to show what you want.
  19. IFRs

    AutoCAD: How do I stop OSnap defaults from overriding @(relative x, y) coordinates?

    On the command line, type "OSNAPCOORD" and type in what you want it to be
  20. IFRs

    Feedability of MIG wire

    I second the notion of oversized Teflon liners

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