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Recent content by NGiLuzzu

  1. NGiLuzzu

    Painting procedures & reports generation SOFTWARE TOOL

    3DDave, when I say “data”, I mean all the information to be specified on: ▪ the documents which prescribe what to do (procedures, working instructions, etc.), and ▪ the forms to be filled in to record what has been done (reports, certificates, etc.), like (but not limited to)...
  2. NGiLuzzu

    ASME design standard for SG iron globe valves

    Perhaps also AWWA standards may help (if you're in the waterworks business): https://www.awwa.org/Publications
  3. NGiLuzzu

    Painting procedures & reports generation SOFTWARE TOOL

    Every day we find ourselves to issue numerous procedures, instructions, reports and painting certificates, by manually entering the same data more than once in different MS Word or Excel files. I feel the need for a tool in which I can enter the data set of each single supply once and for...
  4. NGiLuzzu

    Expired Fire test certificate

    I agree with the above posts: as far as I know, since they simply certify that a certain test was performed on a certain date with certain results, fire test certificates themselves DO NOT EXPIRE. Maybe the resulting product range qualification could change, if the relevant rules of...
  5. NGiLuzzu

    Shell DEP 39.01.10.12-Gen. latest edition?

    The February 2015 edition of the Shell DEP 39.01.10.12-Gen. specification still amends and supplements ISO 15156:2009 standard, which in the meantime has been superseded by ANSI / NACE MR0175 / ISO 15156:2015. (See also thread338-420050 for more background on previous editions). Is Anyone...
  6. NGiLuzzu

    lug butterfly valve piping replacement

    Alfred Philips, how long are the piping sections? Some Manufacturers may supply double-flanged triple-offset valves with extended, even customized, face-to-face dimensions (usually intended to replace existing gate valves): perhaps they may replace your "Piping section>>Lug butterfly...
  7. NGiLuzzu

    Application share of types of butterfly valves.

    Bharti_, in addition to the great post from Danlap above, maybe you’ll find some more information by reading these old discussions (yeah, some references should be updated… especially about website links and Company names; but the concepts are still valid, I guess) and new videos: •...
  8. NGiLuzzu

    Cryo ball valve for LNG -FIRE SAFE CONCEPT

    Tori, maybe you'll find some more information trying to read some of these old posts: - thread408-388739 - thread408-299055 - thread408-229575 - thread408-392566 - thread408-64692 :-) Regards, [i]/'NGL[i]
  9. NGiLuzzu

    Nickel Aluminium Bronze B148 C95800 - Design Standard (Axial Check Valve)

    I guess C95800 material grade is sometimes selected for naval or off-shore services (mainly salt water and/or fire-fighting systems) because it is specified by MIL-B-24480A (1991) and other military standards. This grade has also been added for the first time in the 2017 edition of ASME...
  10. NGiLuzzu

    Wafer type butterfly valve

    See also, for instance: • thread408-435592 within this Forum; • https://youtu.be/0tnFqy-lOaM Of course, as long as the face-to-face dimension is sufficient to realize the desired valve trim design, the valve body ends style (wafer, lug, butt-weld or double flanged) has nothing or little...
  11. NGiLuzzu

    Dynamic behaviour testing of check valves

    I once saw a DN 250 testing loop at a control (ball) valves Manufacturer’s facility right out of Milan (Italy), where they worked in collaboration with the Engineering Department of the local “Politecnico” University. Always in Northern Italy, a similar size may be tested also by SIET...
  12. NGiLuzzu

    Table A.2 of NACE MR0175 / ISO 15156, Part 3: 2016 edition (Austenitic SS’s in “sour” services)

    Thank You again, Steve! I got your points, they sound consistent and result useful to me; but, sorry, I have to disagree about typographical readability: I remain convinced that it would be clearer if the proper cells were merged into one… more or less like in the attached cutout...
  13. NGiLuzzu

    Table A.2 of NACE MR0175 / ISO 15156, Part 3: 2016 edition (Austenitic SS’s in “sour” services)

    Thank you Steve, thank you Ed!! I’m not looking for more corrosion resistant alloys, I’m only trying to understand the limits for austenitic stainless steels and, as I said before, the graphical format of the table (especially the solid border lines of each and every cell) doesn’t help...
  14. NGiLuzzu

    Table A.2 of NACE MR0175 / ISO 15156, Part 3: 2016 edition (Austenitic SS’s in “sour” services)

    I’m not sure on how the table in object should be read. Do both the 2nd and the 3rd rows refer to “Austenitic stainless steel from materials type described in A.2”? So those materials should be used for service fluids with: - chlorides concentrations ≤ 50 mg/l or - H2S partial...
  15. NGiLuzzu

    Steam jackets

    Due to the very short face-to-face dimension of triple-offset valves, the valve body walls may result well heated by the surrounding (upstream and downstream) pipe and by the service fluid inside itself, hence the actual need for steam jacket all around the lug or wafer style valve bodies should...
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