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  1. 092961

    Total Deadhead Pressure of Pumps Operating in Series

    I have two pumps operating in series to achieve a higher overall discharge pressure. If a valve on the discharge line is closed, both pumps will deadhead. My question is whether the net pressure in the piping downstream of the pumps (upstream of valve obviously) will be the sum of the deadhead...
  2. 092961

    ASME Section X - Metal Reinforced Vessel?

    I am looking at using a metal strap reinforced FRP pipe in a pressure vessel application but need to qualify the vessel to ASME Section X code. Although as an FRP vessel I feel it should fall under the "jurisdiction" of Section X, the pipe has ductile metal (steel) straps imbedded in the FRP...
  3. 092961

    Part Quantities When Using "Stacked" Balloons

    When using stacked balloons that apply to multiple locations of parts on an assembly, is it more "accepted" to place the "2X" beside the first balloon with the assumption that the fabricator will understand that the quantity applies to all balloons in the stack OR place the "2X" beside every...
  4. 092961

    Piping Heat Loss in Closed Loop System

    I've got a system with a 7000 gal 316SS tank in a closed loop with 120 feet of 12 inch diameter 316SS piping. The system is located inside with ambient air temperature of 60 F. The water is heated in a separate heating tank to 110 F. The process cycle involves filling the 7000 gal tank with...

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