API 650 ground supported flat-bottom tanks metal temperature during hydrostatic testing

API 620 Tank Design
The designer of these large tanks API 650 ground supported flat-bottom tanks shall supply the data on superimposed loadings to be assumed for the foundation design or, if there are no foundations, for direct loading on the subgrade. A slab or mat may be provided to support the superstructure and shall be considered to distribute the load more evenly over a lower natural subgrade compared with merely stripping, leveling, and rolling the existing grade.
For simple spheroids or tanks of similar design, in which the distribution of the imposed weights shifts because the liquid level in combination with the vapor pressure may change the shape of the tank, the designer shall consider the possibility of such a change.

Before pressure test, the main drain hose system of API 650 petroleum storage tank floating roof should be thoroughly flushed. Provide blind flanges, gaskets and bolts required for the API 650 ground supported flat-bottom tanks test (other types of covers are also required if necessary). Covers for maintenance shall be provided in accordance with the interfaces specified by API 650 petroleum storage tanks, and these seals shall remain in place after the test; and for those interfaces that are not provided for maintenance covers, the covers can be removed after the API 650 ground supported flat-bottom tanks test.

In January 2019, one of our Vietnam customer purchased 395.62 tons Q345B steel plate API 650 ground supported flat-bottom tanks for their construction project, we prepared all the goods ready within 5 days, and supplied the goods with painting sand blasting to SA2.5 API 650 ground supported flat-bottom tanks and priming gray oxide primer, and arrange shipment in time. Meet the customer urgent delivery request.

The preparatory work before the construction of the API 650 ground supported flat-bottom tanks is directly related to the quality assurance, project progress, construction safety and other aspects of the entire oil tank project. Therefore, the preparation work before the API 650 ground supported flat-bottom tanks construction should be paid attention to and planned. Before API 650 ground supported flat-bottom tanks construction, you need to prepare conventional machinery, materials, and facilities, as well as the quality control of the project, such as the installation method of the API 650 ground supported flat-bottom tanks, the welding method of the steel plate, and the inspection of the tank material. In addition, there is the most important item, construction safety protection.

To provide customers with the most satisfactory service and realize the win-win of economic and social benefits, our company promises to provide excellent API 650 ground supported flat-bottom tanks products in this bidding, and in line with the attitude of being serious and responsible to customers, before sending goods to users, the API 650 ground supported flat-bottom tanks technical personnel shall confirm that there is no fault in the equipment before sending goods to users, and then send goods and products to users, and formulate the following service terms.