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An excellent web based tool for Torispherical head thickness calculation under internal pressure. It also gives allowable Stress of material at a desired design temperature. This and many other tool for Pressure Vessel design as per ASME Section VIII Div. 1 would be useful for Static Equipment Engineer.
Torispherical head thickness calculation is based on Appendix 1-4(d) (3) of ASME Section VIII Division 1 2011 edition code book.
Where in Torispherical Head thickness is given by:t = P*L*M/(2SE – 0.2P)
This tool also calculate head thickness on OD basis as per Appendix 1-4(d)(4) of ASME Section VIII Div. 1, which ist = P * Lo*M/(2SE +P(M-0.2))