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  • Users: raisie
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  1. raisie

    Annular Bottom Plate API 650

    Hi guys, Quick question about tank bottom annular plates. API 650 states (in section 5.5.1): "When the bottom shell course is designed using the allowable stress for materials in Group IV, IVA, V, or VI, butt-welded annular bottom plates shall be used (see 5.1.5.6). When the bottom shell...
  2. raisie

    Multiple pumps connected to a single source

    Hi everyone, I am calculating the pipeline size for connecting a pump to a tank. Currently, ther are already 2 pumps in parallel connected to that tank via 1 header. Now a third pump is to be connected to that tank via a pipeline connected to the same main header (refer to the attached drawing...
  3. raisie

    Pipeline sizing for fuel flow

    Hi guys. I have a situation I would appreciate some help on. There are two gasoline storage tanks (Tank 1 and Tank 2), two pumps (Pump 1 and Pump 2). Currently, Tank 1 and Tank 2 are connected to Pump 1 through a 4 inch pipeline. For future operation purposes, an additional connection will be...
  4. raisie

    Pressure of water spraying out of leaking tank

    Hi guys, I have aquestion regarding the spraying pressure of a water tank. Suppose I have a storage tank for water with the following parameters: Height: 10 m Capacity: 651900 liters There is a hole on the tank shell, almost at the bottom of the tank (assume that it is at the bottom) and the...
  5. raisie

    Sudden increase of flow at PD pump inlet

    Hey guys, I am studying a system which has a PRV at the discharge of a positive displacement pump. The discharge of the PRV is sent back to the suction line of the pump. The pump has no control whatsoever. I was wondering, if the PRV relieves flow to the suction while the pump keeps receiving...
  6. raisie

    Relieving Temperature for Pump PRV

    Hi all, I am a Junior Mechanical Engineer and have no experience in PRV sizing, apart from all the research I have done during the last few days. I am sizing a PRV for a PIG Launching System placed in the discharge line of Positive Displacement pump. The liquid is Crude Oil (16 deg API). I have...

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