1. After the boiler is installed, the pressure-bearing parts must undergo a hydraulic test. ...

2. After the boiler has been overhauled or repaired or the local heating surface has been overhauled, a conventional hydraulic test must be carried out, and the test pressure is equal to the maximum allowable working pressure of the boiler. The water pressure test should be presided over by the maintenance personnel, and the operation and maintenance personnel shall participate together. ,

3. Boiler hydraulic test is generally performed twice for major and minor repairs. According to the specific technical conditions of the equipment and approved by the boiler supervision department of the group company, the interval can be appropriately extended or shortened. The overpressure test should be combined with major and minor repairs.