API 650 welded tanks for oil storage preheating
API 650 external floating roof storage tanks are generally called external floating roof API 650 welded tanks for oil storage tanks, which means that the storage tanks are externally open tanks without a dome design, and are equipped with vertical floating roofs. API 650 external floating roof storage tanks are usually used for large More than 20,000 cubic meters of open steel API 650 welded tanks for oil storage storage tanks for storing volatile petroleum products such as crude oil, gasoline, kerosene, etc.
Inspection of API 650 welded tanks for oil storage bottom: magnetic flux leakage scanning technology is used to detect the corrosion condition of API 650 welded tanks for oil storage bottom plate (such as corrosion depth and area, crack length, etc.). When there is a defect in the bottom plate of the API 650 welded tanks for oil storage, the magnetic field distribution will change and the sensor can detect it. The bottom of the oil tank should be free of foreign matters and dry during testing. Weld inspection of API 650 welded tanks for oil storage bottom plate: when vacuum leak test method is used to detect the tightness of oil tank bottom plate, soap water shall be applied to the weld and vacuum box shall be covered for observation.
Inspection of Welded Storage Tanks Surfaces Exposed during FabricationThe edges of API 650 welded tanks for oil storage plates, openings and fittings exposed during fabrication shall be inspected carefully to make sure that any defects have been uncovered, as well as to determine that the work has been performed properly.Minor defects found may be repaired only after the inspector approves the method and extent of repairs. Materials that have more than minor defects that cannot be satisfactorily repaired shall be rejected.Spot radiographic or ultrasonic examination shall be not less than 6 in. extending along the weld. Spot radiography shall comply with the standards given in 7.15.1.3. Where spot radiographic or ultrasonic examination is applied at joint intersections, the surface shall be prepared and examined for a distance of 3 in. on each side of the intersection, making the minimum length of examination 6 in. on the horizontal weld and 3 in. on the vertical weld.
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After years of operation and accumulation, the company has formed an operation network covering major economic cities across the country, with a group of high-quality professional logistics technicians and management personnel, strong strength and stable logistics channels. The company's business operations include the loading and unloading of steel raw materials and finished materials, API 650 welded tanks for oil storage warehousing, and freight transportation. Our logistics service business has passenger transportation, automobile and construction machinery inspection, logistics information management and operations.
