27m diameter API 650 open-top tanks

Tank cracks are common API 650 open-top tanks defects, mainly including tank wall cracks, internal cracks, weld zone cracks. The reason for these defects may be that the defects not exceeding the standard existed in the early stage of API 650 open-top tanks construction, which become obvious after the later use. Or in the process of using the API 650 open-top tanks, the tank body material generated new defects due to corrosion, pressure, wear and other reasons, and tank cracks.Inspection of Butt-welds in Piping
Butt-welds in piping and in API 650 open-top tanks pipe fittings within the limitations of 1.3.2 (including the annular space of double- wall tanks) shall be inspected in conformance with API 620 oil tank standard Q.7.7.2 through Q.7.7.6. Longitudinal welded joints in piping that contains liquid shall be completely radiographed except for manufactured pipe welded without filler metal, 12 in. or less in diameter, which is tested hydrostatically or by eddy current to ASTM requirements.For API 650 tanks Projection from outside of tank shell to extreme face of flange - plus or minus 5 mm. API 650 open-top tanks Elevation or radial location - plus or minus 6 mm. API 650 tanks Flange tilt in any plane, measured on the diameter across the gasket surface - plus or minus degree but not exceeding 5 mm. Flange bolt hole orientation - plus or minus 2 mm.We specialize in the production and sale of steel products. We have many customers from all over the world. Our products API 650 open-top tanks have strict quality inspection departments, so we have absolute quality and technical advantages. Good promotion system, with advanced business philosophy, create development space, enhance the value of employees, improve the quality of life as the mission. Pursuing green procurement, energy conservation and consumption reduction.our company is leading supplier of API 5CT casing pipes in China. N80 oil casing pipes enjoy high size precision, good weld toughness, API 650 open-top tanks good extrusion resistance, easy quality control and low cost features. Welcome to our company to purchase API 650 open-top tanks API 5CT N80 and so on casing pipes.