Liquefied petroleum gas or liquid petroleum gas (LPG or LP gas), also referred to as simply propane or butane, are flammable mixtures of hydrocarbon gases used as fuel in heating appliances, cooking equipment, and vehicles.
LPG Storage tanks are much safer since it weight is distributed evenly on a larger area thus reducing chances of collapse as compared to sphere, especially in small islands porne to earth quakes, cyclones and Tsunami as can be verified from the recent incident in Japan where a row of LPG sphere went under severe fire condition.
At present LPG spherical tanks manufacturers are available at least 20 countries, responsible for supplying storage tank material of LPG, Propane, Ammonia, Ethylene and other gases as per ASME Sec.VIII Div. 1 and 2, PD 5500 and other international codes. The volume range from 200 m3 to 5000 M3 .The Spheres are provided with all accessories like safety fittings, valves, pipelines, Excess flow valves, internal valves as per requirement. In the next video we will show the manufacturing of LPG sphere consisting of various activities like Pressing of plates at shop, Pre fabrication of Equator and crown plates, Legs or columns for sphere, Radiography welding, NDT testing, Erection at site, Hydrotesting and coating of LPG spheres.
Source: www.wikipedia.com
www.liquefiedpetroleumgastank.com
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