Where the spring is above the pipe, this additional hardware weight is an added load on the spring but not on the pipe. You see that the spring is selected with this additional load. The restraint report shows the pipe load on the restraint and this added load pulling down on the spring plate is not included.
You have a point though, if you wish to enter the program-selected spring data into your model, there is no accounting for that extra load unless you model that added load in some other fashion (e.g., add a force at the hanger node).
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Dave Diehl