API Std 650 larger diameter tanks shell design

Customer service center has provided after-sales service for many large-scale information systems, and has accumulated rich working experience in the process of API Std 650 larger diameter tanks service for many years. It can provide accurate, timely and high-quality support and service for users, which is well received by users.

Tank cracks are common API Std 650 larger diameter tanks defects, mainly including tank wall cracks, internal cracks, weld zone cracks. The reason for these defects may be that the defects not exceeding the standard existed in the early stage of API Std 650 larger diameter tanks construction, which become obvious after the later use. Or in the process of using the API Std 650 larger diameter tanks, the tank body material generated new defects due to corrosion, pressure, wear and other reasons, and tank cracks.

Uplift on Foundation
For API Standard 620 tanks with an internal design pressure less than 1 lbf/in.2 gauge, the uplift shall be taken as the smaller of the maximum uplift values computed under the following conditions:
a)The internal design pressure times 1.5 plus the design wind load on the shell and roof.
b)The internal design pressure plus 0.25 lbf/in.2 gauge plus the design wind load on the shell and roof.