Expansion Joints Inside Knuckle Offset - PV Elite - Help - Hexagon

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Enter the distance from the shell cylinder to the beginning of the knuckle for an expansion joint with an inside knuckle and the distance from the shell cylinder to the intersection of the expansion joint web and the shell diameter for joints with a square inside corner. This value is shown as fa in the following illustration (see Expansion Joint Geometry).

  • In both cases this distance is frequently zero.

  • An expansion joint with an outside radius but no outside cylinder, this distance is the distance from the end of the knuckle to the symmetrical centerline of the joint.