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  • Users: DanTh3Man
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  1. DanTh3Man

    Recip Pump - Falling Discharge Pressure with Increasing Suction Pressure

    Hello, I'm troubleshooting a pump system and am hoping the community here can provide some insight into what kind of issue I might be dealing with. First some background: System consists of two parallel centrifugal pumps feeding two parallel recip pumps Centrifugal pumps are on VFDs but have...
  2. DanTh3Man

    Redesign of existing 12F tank to comply with API 650

    Hello, I have been asked to look into whether or not it is possible to redesign/re-certify existing storage tanks that were designed and constructed to API 12F to be compliant with API 650. My initial feeling is that this will not be possible due to the more stringent examination requirements...
  3. DanTh3Man

    Required bolt loading for channel head to shell connection with fixed tubesheet in between

    Hello, I am trying to determine the bolt loading requirements for the channel head to vessel shell connection on one of our heat exchangers. There is a fixed tubesheet between the two flanges. Searching for an approach to calculate the bolt loading requirements for this type or arrangement...

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