(1) According to the installation load provided by the user, the manufacturer uses the upper and lower positioning blocks to fix the indicator plate of the spring support and hanger on the position corresponding to the installation load, so that the spring support and hanger are temporarily in a rigid state.
(2) After the pipeline is cleaned and hydrostatically tested, remove the upper and lower positioning blocks before putting the pipeline into use.
(3) When the pipeline starts to run, first check whether the locating block is removed, and then check whether the indicator plate is jammed during the displacement from the installation load to the working load.
(4) After the pipeline is put into normal operation, check whether the displacement of spring supports and hangers under working load is consistent with the design. After the pipe stops running, check whether the indicator board is reset to the position where the load is installed.
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