API standard 650 welded steel oil storage tanks welding terms

All welded seams in the API standard 650 welded steel oil storage tanks bottom, and complete penetration and complete fusion sidewall-to-bottom welds, shall be inspected by means of a vacuum box test as described in Q.8.2.1. Sidewall-to-bottom welds not having complete penetration and complete fusion shall be inspected by means of either a vacuum box test of the inside weld as described in API 620 specification Q.8.2.1, or where approved by the Purchaser, a direct pressure solution film test as described in Q.8.2.2.Before pressure test, the main drain hose system of API 650 petroleum storage tank floating roof should be thoroughly flushed. Provide blind flanges, gaskets and bolts required for the API standard 650 welded steel oil storage tanks test (other types of covers are also required if necessary). Covers for maintenance shall be provided in accordance with the interfaces specified by API 650 petroleum storage tanks, and these seals shall remain in place after the test; and for those interfaces that are not provided for maintenance covers, the covers can be removed after the API standard 650 welded steel oil storage tanks test.1200 tons API 5LGRB strips to Bangladesh. In December of 2015, we get one tender project from National Tubes Limited, which is a famous national enterprise in Bangladesh. It is an order of 1200 tons API 5L Gr. B steel strips, they bought these cargo to fabricate ERW pipe in local place.The main content of the inspection of the safety management of metal atmospheric API standard 650 welded steel oil storage tanks is whether the filed data of the storage tanks are complete; whether the operators have received safety management training; whether the problems detected in the past have been resolved. The main inspection content of the tank body of the metal atmospheric pressure storage tank is whether the tank top, tank wall, and bottom plate of the storage tank are deformed, dented, seepage and perforation, etc.; whether the API standard 650 welded steel oil storage tanks accessories are complete and whether there are any abnormalities; No sinking, tilting, etc.Our company will accept the product quality objection registration record, pass it to the API standard 650 welded steel oil storage tanks production unit and relevant departments, and timely coordinate the supervision of product API standard 650 welded steel oil storage tanks quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.