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API620 steel weld oil storage tank single-fillet lap joints

API620 steel weld oil storage tank single-fillet lap joints

API620 steel weld oil storage tank single-fillet lap joints

Welders participating in the construction of API620 steel weld oil storage tank must pass the examination and perform welding within the validity period of the qualified items. Special operators such as on-site maintenance electricians, cranes, and shelf workers must hold job certificates. All oil pipelines need to use arc welding for bottoming and electric welding to ensure the welding quality. Oil tanks and process pipelines must be tested for non-destructive flaws in accordance with the flaw detection ratios and methods required by the design and acceptance specifications. The flaw detectors must be certified.

The refrigerated tank primary components shall include, but will not be limited to, the following parts of a single-wall tank or of the inner tank API620 steel weld oil storage tank in a double-wall tank: shell plates; bottom plates; knuckle plates; compression rings; and shell manways and nozzles including reinforcement, shell anchors, piping, tubing, forgings, and bolting. Roof nozzles in contact with the refrigerated liquid shall be considered primary components.

API 650 storage tank, double-layer oil tank environmental protection advantages: ordinary single-layer steel API620 steel weld oil storage tank oil tank is corroded by underground water and gas and electrolytic corrosion because it is buried underground all year round. The API 650 tank has a double-layer structure with a gap of 0.1 mm. The API620 steel weld oil storage tank outer layer of FRP ensures that the leakage will not directly leak into the soil and water source.

In December of 2015, our regular India customer sent us an inquiry for API620 steel weld oil storage tank pipe. The inquiry requires no negative tolerance in both pipes’ outer diameter and pipe wall. After two weeks’ discussion, he put the order of 275 tons to us. The pipes are finished within just one month. Our customer come to our factory to inspect the quality and tolerance, all the products are well meet his demand. The pipes are arriving to Nhava Sheva port, customer is very happy with our products and service during the process.

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