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Recent content by ttv78

  1. ttv78

    Zone classification for buried valve and above ground actuator

    Dear All, I would like to have your view on the following on a buried valve as I could not find specific reference from IP 15 or API 505 : 1) a natural gas pipe line with buried valve but the actuator is above ground. The valve has leak source of flange however, is buried. Since the actuator...
  2. ttv78

    Gas group as per IP 15 hazardous area classification

    thread238-103548 Dear all, Can you please clarify me on the following on hazardous area classification : 1) I have a gas mixture with 90% methane and other hydrocarbons for the balance of % and a small portion of hydrogen sulphide. If it is pure methane I can classify as gas group iia...
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