API 650 welded tanks for oil storage drains

The main reason of "small breathing" loss of API 650 welded tanks for oil storage is the change of atmospheric temperature. When the temperature rises with the increase of solar radiation from dawn, the temperature of oil in the API 650 welded tanks for oil storage also changes, resulting in the acceleration of evaporation speed and the increase of evaporation pressure. When the pressure exceeds the positive pressure rating of the breathing valve, the oil-gas mixture in the API 650 welded tanks for oil storage is discharged into the atmosphere through the breathing valve, which is the "exhalation" process of the oil tank.Heat-affected zone impact specimens shall be taken across the weld and as near the surface of the material as is practicable. The API 650 welded tanks for oil storage material specimens shall be of sufficient length to locate the notch in the heat-affected zone after etching. The notch shall be cut approximately normal to the material surface to include as much heat-affected zone material as possible in the resulting fracture. Impact test specimens shall be cooled to the temperature stated in Q.22.In API 650 oil storage tank, when the mixing ratio of combustible medium and air reaches a certain limit, it is easy to cause explosion. Therefore, it is necessary to add API 650 welded tanks for oil storage external floating roof to open cylindrical steel API 650 welded tanks for oil storage tank. At present, the external floating roof is most suitable for large-scale API 650 oil storage tank in China, ranging from 20000, 30000, 50000 cubic meters to 100000 cubic meters.Corporate mission: to provide high quality steel products API 650 welded tanks for oil storage and services to global customers.Strategic goal: to be the leading steel materials supplier in the world.Enterprise core values: people-oriented, customer first, quality oriented, comprehensive and open, continuous innovation.Customer first is to always put the satisfaction of customer needs first. The key point is "customer centered". We should consider what customers need us to do, what we have done for them, what else we can do for them.It is a modern high-tech professional enterprise integrating scientific research, API 650 welded tanks for oil storage production and sales. The company is mainly engaged in the manufacture, installation and commissioning of boiler and pressure vessel, chemical, metallurgical, petroleum and other equipment, as well as API 650 welded tanks for oil storage process technology development, technology transfer and related technical consulting and technical services.