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  • Users: Mozzie
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  1. Mozzie

    Pilot Operated Pressure Safety Valves

    Hello All, we recently detected a hydrocarbon gas leak on our facility due to pilot valve o-ring failure on a gas compression PSV. The pilot valve spring housing is designed with a weep hole. The idea is that in the event that the internal pilot valve o-rings at the top of the stem fail, the...
  2. Mozzie

    Duplex to Carbon Steel Pipe Destec Hub Connections

    Hello All, We operate an offshore FPSO and are modifying some of our topsides production pipework (high pressure hydrocarbon). Unfortunately the pipework has been designed with a spec break - Duplex to Carbon Steel. The pipe connection at the spec break is in the form of a Destec Hub. P&IDs...

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