Aluminum dome roofs API Std 650 self-anchored tank
Butt-welded joints used to fabricate large steel storage tank fittings shall be completely radiographed. Lines carrying liquid shall be hydrostatically or pneumatically pressurized at a minimum pressure of 35 lbf/in.2 and API Std 650 self-anchored tank butt welded joints shall be simultaneously visually examined (hydrostatic) or solution film tested (pneumatic) for tightness. If manufactured pipe has been hydrostatically tested previously to ASTM requirements, then only circumferential welds need to be examined.
The API 650 is widely used for tanks designed to withstand low internal pressures, for the API Std 650 self-anchored tank storage of typical products such as crude oil, petrol, chemicals and water. We have extensive experience when it comes to API 650 tanks, varying from tanks built in the factory up to +/- 500m3, to tanks built on-location up to +/-15,000 m3.
In December of 2015, our regular India customer sent us an inquiry for API Std 650 self-anchored 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.
}Inspection of API Std 650 self-anchored tank bottom: magnetic flux leakage scanning technology is used to detect the corrosion condition of API Std 650 self-anchored tank bottom plate (such as corrosion depth and area, crack length, etc.). When there is a defect in the bottom plate of the API Std 650 self-anchored tank, the magnetic field distribution will change and the sensor can detect it. The bottom of the oil tank should be free of foreign matters and dry during testing. Weld inspection of API Std 650 self-anchored tank bottom plate: when vacuum leak test method is used to detect the tightness of oil tank bottom plate, soap water shall be applied to the weld and vacuum box shall be covered for observation.
Our company will accept the product quality objection registration record, pass it to the API Std 650 self-anchored tank production unit and relevant departments, and timely coordinate the supervision of product API Std 650 self-anchored tank quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.
