API 650 floating-roof tanks examination of welds

The vent pipe mouth should be 4m or more above the ground. The nominal diameter of the API 650 floating-roof tanks API 650 petroleum storage tank vent pipe should be no less than 50mm and a flame arrestor should be installed.

Pressure Setting of Safety DevicesExcept as provided in API 620 tank 9.5 for certain liquid relief valves, the pressure setting of a pressure-relieving device shall in no case exceed the maximum pressure that can exist at the level where the device is located when the pressure at the top of the tank equals the nominal pressure rating for the tank (see API 620 tank 5.3.1) and the liquid contained in the tank API 650 floating-roof tanks is at the maximum design level.Vacuum-relieving devices shall be set to open at such a pressure or partial vacuum that the partial vacuum in the tank cannot exceed that for which the tank is designed when the inflow of air (or other gas or vapor) through the device is at its maximum specified rate.

Anti corrosion of API 650 floating-roof tanks:
After using for a certain period of time, it is necessary to check the corrosion protection of the API 650 floating-roof tanks. If necessary, the outer wall of the metal oil tank should be painted with new anti-corrosion paint to ensure that the outer wall of the API 650 floating-roof tanks does not fall off and has good waterproof and rust resistance.
API 650 floating-roof tanks cleaning:
The long-term use of API 650 floating-roof tanks will produce impurities on the tank wall and deposit on the tank bottom, resulting in tank corrosion to leakage. According to the safety standard of oil tank, the API 650 floating-roof tanks shall be cleaned and derusted regularly to ensure the quality of oil stored and the safety of oil tank equipment.

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As a leading international steel supplier, we have two warehouses, close to Tianjin port and Shanghai port. This superior geographical location effectively saves the domestic transportation cost and greatly improves our service level. At the same time, it also shortens our delivery time and provides more convenience for customers.

The 365 day service system is implemented, and the business, loading and delivery are handled as usual in holidays and festivals. Actively help users solve difficulties. When users encounter difficulties in handling business, they should actively coordinate with the external solution; if they need to solve the problems internally, they should solve them in a timely manner without prevarication and wrangling. In line with the API 650 floating-roof tanks principle of "fairness, justice and timeliness", coordinate with relevant departments and deal with all kinds of objections in a timely manner.