Simplified analysis of API standard 650 cylindrical welded storage tanks

Oil tank is often used to store crude oil, diesel oil, gasoline and other oil. The main structure of API standard 650 cylindrical welded storage tanks is composed of tank top, tank wall, tank bottom and accessories. The API standard 650 cylindrical welded storage tanks should be inspected after the completion of construction, and the detection methods of different structure positions are different. Tank wall inspection: for the newly built oil tank, water filling test shall be conducted to check whether the tank wall is tight, and the appearance inspection shall be conducted for the tank wall plate and weld. Tank wall thickness detection: the oil tank wall thickness is mainly detected by ultrasonic wave, with high efficiency.

Temporary Openings after Hydrostatic Test
When approved by the Purchaser in writing, and only in the case of tanks which when complete have no shell penetrations, it is permitted to restore by welding up to four temporary shell openings after the hydrostatic test in accordance with the provisions of this section. Each temporary opening shall be restored by the insertion of a shell plate that matches the thickness and specification of adjacent shell material, and is welded into place with full fusion butt-welds. The API standard 650 cylindrical welded storage tanks insert plate shall be round with diameter no less than 24 in. and no greater than 42 in.

The internal floating plate of internal floating roof tank of API 650 tank is different from that of open floating plate of API standard 650 cylindrical welded storage tanks External floating roof tank of API 650 tank, so it is impossible to have rain and snow load.

We had a wonderful trip in Phuket Island, Thailand. At the end of 2019, in order to thank employees for their hard work for a year and enrich their lives, our company organized a pleasant trip to Phuket Island, Thailand. The tour lasted 6 days and 5 nights, and returned by plane on the evening of December 27. We took off in Zhengzhou at about 5 o'clock in the afternoon on the 22th December.

Our company has been established for 20 years and has accumulated rich experience in steel products. At the same time, it is often exported to Southeast Asia, Africa, South America and other countries. So you can rest assured that our API standard 650 cylindrical welded storage tanks products and our prices are very favorable. Because we have our own factory, there is no other cost, we can also carry out machining and so on.