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  • Users: Indyvidual
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  1. Indyvidual

    Static electricity on storage tanks - standards

    Hi, I have a certain issue that I have not been able to deal with lately. It's about the specific resistance values that must be met by components that, according to API 650 or in Europe EN 14015, should be made anti-static. It is about floating roof seals. Is it specified in any standard how...
  2. Indyvidual

    Storage tank rim seal life-time - standards

    Hello, I have a question, is there a condition in any tank standard that the rim seal or components like rubber must be replaced every X years? I have searched standards like API 650, 653, RP 575 and there is only mention of possible replacement during service, but the only condition is that...
  3. Indyvidual

    High temperature bolt material

    My question is: What material should the bolts be of for a pressure vessel with the following specifications: Pdesign = 68 bar Tdesign = 415 °C V = 8 dm3 Flanges: 2" and 3" 1500 RTJ. Pressure vessel according to EN 13445. Will 25CrMo4 be a suitable material? What bolts are suitable for these...
  4. Indyvidual

    Hermetic roof on the tank - are there any regulations specifying whether it can be used or not?

    Hello, I have a question, is there any rule in a standard such as API 650 specifying the conditions under which the use of an airtight roof on a tank (in this case for gasoline) is allowed? Some companies use internal floating roofs + dome roofs, but I have also come across cases where the...

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