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  1. mcohen

    Tubesheet hole pitch changes from grooving

    Thanks for your responses. By the way, the material is aluminum. Since it is much softer than steel, wouldn't this influence the pitch? Does anyone know how TEMA derives the pitch equation in the first place?
  2. mcohen

    Tubesheet hole pitch changes from grooving

    I work for a company that makes shell and tube exchangers. We are looking into grooving our tubesheet holes for increased strength at our tube-to-tubesheet joint. Based on TEMA, the pitch is defined as 1.25*tube diameter. If circumfrerential grooves are added to the tubesheet holes, does the...

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