Pipe Stress Analysis for Piping on Pig Launcher/ Receiver System have some notices as below:
· Pig Launcher/ Receiver shall be fixed one saddle and sliding another saddle.
· Pay attention to the Design Code (B31.8, B31.4, B31.3, DNV, etc.)
· Pay attention to the routing of small lines connect to Pig Launcher/ Receiver.
· Pay attention to loads on support and hanger flange.
· During the basic engineering stage and early DE stage, the calculated nozzle loads at the face of the flange of the pig launcher/ receiver shall be provided to Mechanical Discipline for saddle design as soon as possible with an adequate margin for any routing modification during the DE stage.
· The thermal loads at saddle locations shall also be passed to Structural Discipline for the design of supporting structures.

