I-50 Industrial Oil: Protection Against Contamination During Transit

I-50 (I-50A) industrial oil is used in industrial equipment with moderate requirements of anti-oxidation and anti-corrosion properties of the operating oil. It is important to use industrial oil that is clean, pure and free from unwanted contaminnants.  Contaminated oils and fluids will have a detrimental effect on parts and assemblies of machines and equipment.  Keeping the oil clean therefore requires certain measures during production, during transportation, during storage and when being used in the industrial equipment.  Measures must be taken at all stages to maintain the quality and purity of the oil and fluids. We have already looked at measures to keep industrial oil clean in storageand in use.  In this article we would like to discuss the protection of oil from contamination during the transportation phase of its life and service cycle. Industrial oil can be transported by many means of transportation.  Since the amount of transported oil is usually quite significant and keeps growing, the amount of contamination acquired during transportation can also be rather large. Atmospheric contaminants are of primary concern during transit.  Leaks in transportation vessels, malfunctioning breather valves and incorrect handling may cause contamination with moisture and dust.  More dust enters the oil during transportation in tanks by railroad or trucks than during storage in special tanks in oil storage facilities.  This is especially true for industrial oil transported on unpaved roads where conitions can create a tremendous amount of airborn dust and dirt. Some of the dust enters industrial oil through the oil tank’s breather valves.  It is therefore, recommended to use plate valves.  They offer better air tightness than seat-and-ball valves.  The problem is that due to significant weight, the vibrations of transportation may cause them to open, leading to significant contamination of oil. Oil tanks carried by trucks are equipped with breather valves with air filters for this reason. Such filters offer sufficient purification of air entering the tank during transit.  The weight of the filter is about 22.5 kg.  The holding capacity of the filter is however, limited, which prevents massive application of these devices. To stop dust from entering inlet and outlet hoses of tanks, the hoses should be kept in special compartments. Such compartments must be air-tight. Industrial oil can become contaminated when dispatched from the tank at its final destination.  The amount of contamination can be reduced during transfer operations using special pumping equipment that ensures air tightness thereby reducing the amount of contamination from atmospheric dust and moisture. Transportation of industrial oil in containers has become popular recently.  Besides other obvious advantages, this method allows the equipment operator to significantly decrease the amount of contaminants in the product by minimizing the oil’s contact with the atmosphere during transit and transfer operations. Other contaminants, entering industrial oil during transit, are the products of corrosion, contamination byproducts of pump and valve wear, residual contamination and contaminants entering the oil through leaks in the system. Viscous industrial oil can also be contaminated during heating. To prevent corrosive sediment, transportation vessels are made of corrosion-resistant materials.  Non-metal tanks, such as fiberglass, have also been used. Residual contamination is prevented by cleaning out the inside of transportation vessels. Another method is chemical cleaning of vessels by water solutions of alkali, organic solvents and synthetic surfactants. The specific selection of cleaning detergent depends on the composition of residual contaminants.

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