Pressure vessel refers to a fluid container operating in a different pressure proportional to the ambient. This means the vessel body will be encountered strong stresses caused by internal or external pressure and thermal deformation. Hence, designation of pressure vessels is of great importance due to the possibility of hazardous contents leakage and fatal accidents. Vessels are the main parts in a variety of industrial units handling fluid streams such as storage tanks/cylinders, heat exchangers, separators, filters, fractionating columns, compression chambers, pneumatic/hydraulic reservoirs and etc. Shiraz Mechanic Industrial Group vessel production is available for all industries and private sectors including horizontal, vertical and spherical configurations. Over the years producing numerous pressure vessels has given us the adequate expertise to design, fabricate and install vessels in a wide range of types, sizes and specific conditions.