API Std 650 storage tank roof venting

If additional requirements are met, higher internal pressures are allowed. API 650 only covers tanks that support the whole bottom evenly and API Std 650 storage tank tanks in non-refrigerated service that have a maximum design temperature of 200 degrees F. It requires that you have a minimum material thickness of 3/16 inch.

The water dissolved in the oil will be separated out from the oil stored in the API Std 650 storage tank for a long time, and the acidic water layer will appear at the bottom of the API Std 650 storage tank for a long time, which will accelerate the corrosion of the API Std 650 storage tank and cause the wall thinning and even leakage. With the increase of service life, the API Std 650 storage tank must be inspected and cleaned regularly to check the hidden danger.

The API 650 oil tank stiffener ring and backing strip, if used, are primary components, and they shall comply with the requirements of R.2.1. The API Std 650 storage tank stiffener ring may be fabricated from plate using an intermittent weld on alternating sides between the web and the flange. One rat hole with a minimum radius of 3/4 in. shall be provided at each longitudinal shell joint and ring juncture weld.

Considering the large workload of allocation and transportion for our steel materials, we have built special shipping department, and make it independent form transportation department. The transportation department is in charge of transporting steel materials from our mill and warehouse to the port, and our shipping department is in charge of the shipping matters. So that our whole shipping efficiency is improved, and shorten time for customers to receive goods.

If you have any requirements for the mode of transportation of the API Std 650 storage tank goods, we can also negotiate and meet your requirements. For logistics, first of all, we respect customers' opinions, and then choose the most convenient port and transportation mode with appropriate price for customers.