Procedure 2-6 Design of Toriconical Transitions

P = internal pressure, psi S = allowable stress, psi E = joint efficiency 

2 = equivalent internal pressure, psi fi, f2 = longitudinal unit loads, Ib/in. 

Px = external pressure, psi Ml, M2 = longitudinal bending moment at elevation, in.-lb 

Thickness required knuckle, [1. section l-4(d)]-With loads  

Thickness required knuckle. There is no requirement for thickness of the reverse knuckle at the small end of the cone. For convenience of fabrication it should be made the same thickness as the cone. 

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