Design of Quick Closure Device for Pressure Vessels (Part2)

Introduction of JIS B 8284

Abstract

Of the quick closure devices standardized by JIS B 8284, “Design of Quick Closure Device for Pressure Vessels”, the design calculation formulas for integral type clamps were already explained in Part 1. In Part 2 the design calculation formulas for devided type clamps are explained.
Design calculation formulas for the devided type clamps are also given in ASME Sec. VIII. Div. 1, Appendix 24, “Design Rules for clamp connection.” However, JIS B 8284 is somewhat different in taking account of the total moment working on a flange, because JIS B 8284 deals only with self-seal type gasket for which a prior tightening force is not needed, whereas ASME rules takes a premise that the gasket tightening force is obtained by a tightening force of devided clamps.