CSA G40.21 Gr 260W plates API 650 open-top tanks

Floating roofs shall comply with API standard 650, Appendix C (Attachment 01) or with the API 650 open-top tanks requirements as layed (laid )down in the national Chinese specifications SH3046-92 and GBJ128-90.

When the day light gradually decreases, the temperature of oil in the API 650 open-top tanks will also decrease, the evaporation speed will gradually slow down, and the pressure in the API 650 open-top tanks will also decrease. When the pressure in the API 650 open-top tanks is lower than the negative pressure rating of the breathing valve, the outside air is sucked into the API 650 open-top tanks through the open vacuum valve, which is the "suction" process of the oil tank.

Low-pressure storage tanks Fireproofing
Although general fire prevention and fire protection measures are expected to be fully covered by other safety codes, tanks API 650 open-top tanks constructed according to these rules, which may be subject to fire exposure resulting from any cause, shall have their supports suitably fireproofed.
Special consideration shall be given to provisions for ample drainage facilities for accidental spills or leakage of flammable contents from such tanks or adjacent piping and other equipment if the contents may become ignited.
Subject to special considerations in isolated locations, tanks in which flammable liquid products are stored at temperatures well above their average boiling point shall be suitably fireproofed or otherwise protected.

The company has five major departments: steel plate production department (including quality inspection team), sales department, market development department, after-sales and logistics department, and finance department. The backbone of steel business from all over the country, with the chairman as the core, integrates self-confidence, independence, passion and responsibility, and strives for excellence! All people share the same belief: "Being a refined steel product line rewards customers, strengthen the steel industry, and realize the corporate dream!

Our company is located in the Central Plains, Zhengzhou City, convenient transportation. There is the largest Xinzheng airport, welcome customers from all over the world to visit our company. Our factories are all located near the port. The logistics is very convenient, which can save the delivery time.