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  1. D.Stroh

    Sanitary Pipe - Installation Cost Estimation

    Thanks Ed and XL83NL. I found an old spreadsheet from a former coworker that has some approximate weld times based on the size of pipe. They start at 1 hr/weld for 0.5-2in tube and increase up to 3 hours for a 4" tube. I may use this plus material cost and then compare that with the...
  2. D.Stroh

    Sanitary Pipe - Installation Cost Estimation

    Hello, I was wondering if there are is a program that can be used to produce cost estimates for installation sanitary tubing (ASTM A270) or ASME BPE tubing? Or are there rules of thumb that can be used? Also, I've heard 100-300 dollar per linear foot of installed tubing depending on size and...
  3. D.Stroh

    Control Theory of Heat Exchanger with 3 Control Loops

    Thank you all for your input. @quark the header pressure for the food grade water is connected to a lot of other users. If they are using food grade water, the supply pressure in the header may vary. Also this heat exchanger will be delivering to about 15 different tanks and have drain valves...
  4. D.Stroh

    Control Theory of Heat Exchanger with 3 Control Loops

    I am designing a plate and frame heat exchanger system. The process side cools food grade water using the utility side of chilled water. The three things I must control are outlet temperature of the process side, flow rate of the process side, outlet pressure of the process side(must be higher...

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