The design and construction for API 650 carbon steel tank

To scientifically evaluate the remaining service life of the API 650 carbon steel tank, it is necessary to know the thickness change and development trend of the storage tank sheet after long-term use, combined with the metal characteristics of the storage tank, the influence of various external conditions and the continuous change of the oil pressure in the API 650 carbon steel tank, etc. factors to judge. Because the metal characteristics, corrosion defects, load and other numerical parameters of the API 650 carbon steel tank are randomly changed, the value of the remaining service life of the storage tank will also be dynamic.

API 650 carbon steel tank Visual InspectionUpon completion of all the foregoing tests, the pressure in the tank shall be released and a thorough visual inspection shall be made of both the inside and outside of the tank, giving particular attention to all internal ties, braces, trusses, and their attachments to the walls of the tank. Anchors shall be checked for snug tightness and adjusted if required. Anchor threads shall be fouled by peening or tack welding to prevent loosening. In lieu of thread fouling, double nuts may be used.Rate of Water Filling and Water TemperatureThe rate at which water is introduced into a tank for a hydrostatic test shall not exceed 3 ft of depth per hour. The foundation, venting equipment, or other conditions may limit the water filling to a lower rate. Pressure shall not be applied above the surface of the water before the tank and its contents are at about the same temperature.

The company has a perfect after-sales service system and quality assurance system. The company adheres to the service principle of "all for users", and has established a professional after-sales service team. In the future service process, the after-sales service adopts regular return visit for customers. Timely understand the customer's satisfaction with our products, and solve the user's problems at any time.

Floating roofs shall comply with API standard 650, Appendix C (Attachment 01) or with the API 650 carbon steel tank requirements as layed (laid )down in the national Chinese specifications SH3046-92 and GBJ128-90.