Test pressure for atmospheric storage tanks.
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Sea friends: There is a problem here – the design pressure for the rainwater tanks in our company is at atmospheric pressure, as shown in the diagram below. However, the test pressure for these tanks is +2200 Pa/-784 Pa, as indicated in the diagram. How should this pressure test be carried out? Has anyone who has conducted pressure tests on storage tanks offered some guidance?
For specific procedures, please refer to the relevant standards: GB50128-2005 Code for Construction and Acceptance of Vertical Cylindrical Welded Steel Storage Tanks, and SH/T 3530-2011 Technical Specifications for the Construction of Vertical Cylindrical Steel Storage Tanks in the Petrochemical Industry
This is just a normal-pressure tank; no pressure test is required, only a water filling test is needed
Fill it with water, conduct a pressure test and a settlement test, and that’s it
Just conduct a water-filled test; before adding water, separate the tank from the pipes. While filling it with water, pay attention to any settlement of the foundation and changes in the tank’s condition, and add water slowly
It is unknown what the capacity of the rainwater tank is; if it is 100 cubic meters or less, water can be used to test for leaks, while if it is more than 100 cubic meters, testing can be carried out in accordance with GB50128.