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  • Users: Powerman81
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  1. Powerman81

    Convert Refrigerant tons to lbs

    Hi, I have chiller that has 752 tons capacity. How can I determine the mass of R12 refrigerant the chiller is charged with. Thanks
  2. Powerman81

    ASME Section III, Class 3 Valve W/ "N" Stamp

    Hi, I am working on a modification that requires the replacement of ASME Section III, Class 3 valve which requires the "N" stamp. The valve is needed for the upcoming outage that is 2 months from now. Unfortunately, the lead time for new valve is no less than 48 weeks. I am reaching out to...
  3. Powerman81

    ASME Section III, Class 3 Valve W/ "N" Stamp

    Hi, I am working on a modification that requires the replacement of ASME Section III, Class 3 valve which requires the "N" stamp. The valve is needed for the upcoming outage that is 2 months from now. Unfortunately, the lead time for new valve is no less than 48 weeks. I am reaching out to...
  4. Powerman81

    Carbon Steel to Stainless Steel Flange connections

    Is it possible to connect a stainless steel flange to carbon steel flange (24" piping) with river water as the flowing fluid? what type of problem would the flange connection experience? do I need insulating kit? any help would be appreciated
  5. Powerman81

    Air flow through a 2" orifice

    Hi, I need to calculate the air flow through a 2” wall penetration between 2 rooms based on pressure difference of up to 1” of water. I am assuming that the penetration can be modeled as 2” round edge orifice. Crane Tech paper 410 provides the necessary equation for calculating the air flow...
  6. Powerman81

    Tank heating

    Hi all, I need to prove theortically that natural convection will occur inside a water storage tank. The tank specs specs are hight : 70 ft Diameter: 27 ft capacity: 285,000 gallons Constant pressure isdie tank The tank has 6 elecrical heaters (Thermostatically controlled). The heaters and...

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