Spring Pipe Hangers

The piping system between A and F is adequately flexible provided the total vertical movement is shared by A-C and D-F. 

Determine the wei ts of all components of the piping system between A and F. Disregard the weights of elbows, instead consider the system as made up of straight sections of pipe with mitered elbows. Consider B-C to be one continuous pipe 

Layout the piping system to scale and draw worklines in plan between the points of support, A-Cn and CD-F. 

Calculate the loads at A, D and F considering that the transposed weights at H, J, L and M are loads falling on simple beams whose ends are at A and C, and D and F. 

Determine total weight of the system from the figure and known information  

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Spring pipe hangers is required must be regularly inspected in a mechanical integrity program. 

The small amount of maintenance required to remove the troublesome spring hangers was not considered a change, because the team did not understand the specifications. Trevor Kletz has often said, People don t know what they don t know. Since people do not know (and cannot always remember) piping specifications, all specifications must be available and kept up-to-date (See Figures 8-6, 8-7, and 8—8). 

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