API 650 fixed roof tanks shell-to-bottom welds

All edges of the inner wall of the API 650 petroleum storage tank to be lined or coated must be rounded and flat to a minimum radius of 3mm. The API 650 Fixed roof tanks internal welding seam must be completely sealed welding, with a smooth surface and no air holes, air pockets and local protrusions. Remove welding spatter. As specified in API 650 petroleum storage tank design drawings, the seller must perform additional surface treatment.

The inner and outer tanks may be decoupled for seismic design of the tank and anchorage and assumed to act independently. However, if the inner and outer tanks API 650 fixed roof tanks are supported by a common foundation, the seismic foundation loading shall be calculated using the lesser response modification values for either the inner tank or outer tank for both tanks and a dynamic analysis shall be performed to determine the combined effect.
Allowable Stresses: For Appendix R tanks, design allowable stresses shall be per API 620 large low pressure storage tank, Section R.3.3.

The elastic filling and sealing of floating roof API 650 fixed roof tanks is to fill the elastic and changeable objects in the sealed envelope, and the sealing purpose depends on the compression deformation of the filler. This kind of sealing effect is good, the requirement of the geometry of tank wall is not too high, and the adaptability is strong. However, the elastic filling and sealing has poor wear resistance and is easy to deform and damage in long-term use.

"Adhere to green development, implement basic national policies to conserve resources and protect the environment, and take the goal of creating a resource-saving and environment-friendly iron and steel joint enterprise to promote the construction of ecological civilization.Strengthen the construction of core talents, further release the talents' innovative wisdom and innovation potential, and promote the efficient and high-quality development of enterprises. Adhere to the people-oriented principle, persist in relying on employees for development, share development results with employees, and build a harmonious enterprise."

Our company doesn't need the cheapest quotation to choose international logistics company, but the price performance ratio will be high, the service will be good, and the transportation must be safe and punctual, which will not affect the time when the API 650 fixed roof tanks goods arrive at the destination, and the logistics situation will be well communicated with customers in advance. Therefore, when we choose international logistics companies, we will have a look at their timeliness and service attitude in advance. It is only important to transport goods according to the requirements of customers for logistics.

Our company will accept the product quality objection registration record, pass it to the API 650 fixed roof tanks production unit and relevant departments, and timely coordinate the supervision of product API 650 fixed roof tanks quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.