A516 grade 70 plates API Std 650 low-alloy steel tanks

The internal floating plate of internal floating roof tank of API 650 tank is different from that of open floating plate of API Std 650 low-alloy steel tanks External floating roof tank of API 650 tank, so it is impossible to have rain and snow load.

When encountering heavy rain or continuous heavy rainfall, the safe operation of API Std 650 low-alloy steel tanks will be affected. For example: the API Std 650 low-alloy steel tanks is submerged, the oil unloading valve and the flame arrester valve are broken by water and the oil tank leaks. The oil tank area must do emergency work to prevent rainstorm to ensure the safety of the oil tank. Here are some safety protection measures for API Std 650 low-alloy steel tanks in heavy rain.

Density of API Std 650 low-alloy steel tanks Liquid Stored
The density of the liquid stored shall be its maximum density within the range of design temperatures, but no less than 29.3 lbf/ft3 for methane, 34.21 lbf/ft3 for ethane, and 35.5 lbf/ft3 for ethylene.
Design Metal Temperature
The design metal temperature of each component exposed to the liquid or vapor being stored shall be the lower of the temperatures specified as follows: The design metal temperature of the components of the API 620 single-wall tank or the inner tank of a double-wall tank shall be the minimum temperature to which the tank contents shall be refrigerated, including the effect of subcolony at reduced pressure.

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Due to the surge in business volume in recent years. In addition to coordinating our own truck fleet, our logistics department has continuously developed high-quality logistics companies and signed long-term cooperation agreements. While enjoying the professional and fast service of logistics companies, we have significantly reduced transportation costs. That not only ensure our customers receive the goods at the same time, but also help them reduce shipping costs.