API Std 650 cylindrical liquid-storage tank secondary seal

API 620 Tank Design
The designer of these large tanks API Std 650 cylindrical liquid-storage tank 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.

Storage tanks API Std 650 cylindrical liquid-storage tank designed in accordance with the rules and guidelines of API 650 are called API 650 storage tanks. API 650 is a control rule for welded storage tanks that work normally in the normal pressure range.

In December of 2015, our regular India customer sent us an inquiry for API Std 650 cylindrical liquid-storage tank pipe. The inquiry requires no negative tolerance in both pipes’ outer diameter and pipe wall. After two weeks’ discussion, he put the order of 275 tons to us. The pipes are finished within just one month. Our customer come to our factory to inspect the quality and tolerance, all the products are well meet his demand. The pipes are arriving to Nhava Sheva port, customer is very happy with our products and service during the process.

In order to prevent the deformation of the bottom of metal vertical storage tank, API Std 650 cylindrical liquid-storage tank during welding, the number of welders should be reasonably distributed. When welding metal vertical API Std 650 cylindrical liquid-storage tank, personnel and welding position shall be reasonably allocated according to the actual situation of welding personnel, and random welding is not allowed.

With a high-quality and complete after-sales service system, the company solves the user's hindrance and improves the reliability of steel API Std 650 cylindrical liquid-storage tank product quality. Reaching every corner of the globe with professional services, users anywhere can get thoughtful and detailed services form us is our pursue. We promise all our steel materials are manufactured and tested in accordance with responding standards. We will take full responsibility for the quality of the steel materials we provide.