(1) by the manufacturer according to the user to provide the installation load, with the upper and lower two positioning blocks will be spring support hanging at the corresponding position with the installation load, so that the spring support hanger temporarily In a rigid state.
  The same time as
(2) after the pipeline cleaning, water pressure test, remove the upper and lower positioning block, before the pipeline can be put into use.
  The same time as
(3) When the pipe starts to run, first check whether the positioning block is removed, and then check whether there is any jamming phenomenon in the process of displacement from the installation load to the working load.
  The same time as
(4) After the pipeline is put into normal operation, check whether the displacement of the spring support hanger at work load is consistent with the design. After the pipe has stopped running, check that the indicating plate is reset to the position where the load is installed.

没有了！
The structure and model of spring hanger