A516 grade 70 plates API standard 650 duplex stainless steel tanks
API 650 petroleum storage tank basic knowledge, storage tank concept and use: API standard 650 duplex stainless steel tanks storage equipment for storing crude oil, gasoline, kerosene, petroleum and various non-volatile chemicals, API 650 petroleum storage tank is a storage and transportation system facility, oil refining, chemical industry An important part of the device.
API standard 650 duplex stainless steel tanks Liquid Relief ValvesA tank, which is likely to operate completely filled with liquid, shall be equipped with one or more liquid relief valves at the top of the roof, unless otherwise protected against overpressure. When such valves are, in effect, supplementary relief devices, they may be set at a pressure not greater than 1.25 times the design pressure. Because the relief valve at the pump, which provides the inflow of liquid to the tank, is set at a pressure greater than 1.25 times the design pressure of any tank that may be built under these rules, provision should be made for preventing overfilling of the tank by a self-closing float valve, by some practicable pilot-valve control, or by any other proven device.
Crack treatment of API standard 650 duplex stainless steel tanks weld area: find out the crack tip with ray or ultrasonic flaw detection, drill cut-off holes at both ends of the crack with the cut-off method, the hole depth is slightly greater than the crack depth, or groove (crack stop groove) is made by angle grinder at both ends of the crack, shovel and grind the whole crack, and grind it into a suitable groove; use radiographic inspection and dye detection to verify that the crack has been completely excavated, and finally repair welding.
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We have strong strength of steel plate production, high-quality products, and low prices. Guarantee to thank the new and old customers for their trust with good products, excellent quality, low price and perfect service. The company provides customers with professional "one-stop" logistics services: warehousing, loading and unloading, and transporting. The perfect logistics management, facilities, network and guarantee system guarantee customers' worry-free delivery.
Before delivering our hot rolled plate product we apply various tests to check the quality of carbon steel API standard 650 duplex stainless steel tanks plates such as- mechanical test, chemical test, hardness test, toughness test, eddy current test, impact test, micro test, flaring test, flattening test, etc. We are provided best packing for structural steel plates to avoid rust. Our after-sales service team will contact you if you have any question.
