Calculating Blank Head Thickness
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Questions and Answers

According to the given text, what is the formula for calculating the thickness of a cylindrical vessel?

  • $t = 5PL^{4.8}Sw$
  • $t = 2.250MPa imes 1067mm$
  • $t = PL - 2Sw - 0.2P$
  • $t = A^{4.8}Sw$ (correct)

    • What is the value for the shell thickness calculated using the formula from PG-27.2.2?

  • 17.86 mm
  • 5 x 2.250 MPa x 853.6 mm
  • 2400.75
  • 10.63 mm (correct)

    • What is the minimum required thickness of the dished head according to PG-29.6?

  • 112 MPa
  • 10.63 mm
  • 17.86 mm (correct)
  • 2.250 MPa x 1067 mm

    • What is the ratio between the major and minor axis of an ellipsoidal head?

    <p>2:1</p> Signup and view all the answers

    What is the formula for calculating the thickness of a full-hemispherical head without a flanged-in manhole?

    <p>$t = rac{PL}{2Sw} - 0.2P$</p> Signup and view all the answers

    What is the formula for calculating the thickness of a full-hemispherical head with a flanged-in manhole?

    <p>$t = rac{5PL}{4.8Sw}$</p> Signup and view all the answers

    What is the value of L in the formula for calculating the thickness of a full-hemispherical head with a flanged-in manhole?

    <p>80% of the diameter of the shell</p> Signup and view all the answers

    What is the thickness of a full-hemispherical head with a flanged-in manhole if the shell diameter is 1000 mm and the value of L is 800 mm?

    <p>$t = rac{5 imes 2.250 MPa imes 1000 mm}{4.8 imes 112 MPa imes 800 mm}$</p> Signup and view all the answers

    What is the value of y for ferritic steel at 250°C according to PG-27.4.6?

    <p>0.4</p> Signup and view all the answers

    What is the value of E for seamless steel according to PG-27.4.1?

    <p>1.0</p> Signup and view all the answers

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