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  • Users: Doove117
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  1. Doove117

    Bolted fastener vibration loosening and spring washers

    Hi we supply skid mounted process plant for marine and oil and gas sector. All 2" lines or less. Ambient temp, <10barg. Seawater with some chenical. One line has bubble entrained gas flowing to a degas tank (atmospheric). There is a small fan and a small pump on the skid. Our designers put...
  2. Doove117

    Explosive Atmospheres - Static - incendive discharge - hydrogen - pipe earthing and bonding

    Having some differences of opinion with a client and a supplier (...I can hear you grinning from here...) IEC 60079-14 paragraph 6.4 In the design of electrical systems, steps shall be taken to reduce to a safe level the effects of static electricity. I have 5% HCl acid line (PTFE lined...
  3. Doove117

    Vibration Induced Fatigue, Small Bore Instrument Tees, Incompressible Flow

    Hi I am a draftsman who is studying to become an engineer so please excuse my ignorance. We have a job and have subcontracted out pipe stress analysis, including an assessment to EI guide on vibration induced fatigue. It is 4" titanium pipe with a 4" to 2" reducing tee then a little downstream...

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