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CORROSION

Oxygen combines with iron to form corrosion in less than a thousandth of a second. Corrosion is an electro-chemical process which cannot be reversed or removed by flushing. The metallic debris that results will degrade the system and require continuous, expensive replacements and repairs. These expenditures will be an ongoing problem until the pipe and fittings are replaced with the correct ones.

The heat from welding causes scale to form on the I.D. of pickled pipe. Figure 1 is an example of the scale removed from just one such weld joint. Using the procedures specified in the Tech Sheets with REDOX pipe, you can make clean welds like that of Figure 2 become a reality.

The second type of corrosion is the most common and dangerous -- red rust. You cannot avoid having this type when using pickled pipe. It is not always visible to the unaided eye, but it is always present. Rust is caused by the failure to follow acceptable cleaning procedures when using corrosives on metal. Contrary to popular belief, heavy oil does not prevent the formation of red rust. Once steel has been damaged by corrosives, the oil merely suppresses its visible formation. Upon system start-up the damaged steel is subjected to dissolved oxygen in the lubrication. The combination of oxygen with the intergranular corrosion caused by pickling produces galvanic corrosion. This results in increasing quantities of metal debris entering into the lubricating oil stream.

Metallic debris from corrosion is the leading cause of hydraulic component failure. Over time, it will damage or destroy all components in any system where it is present. To avoid this costly killer you must use the correct pipe - those that meet the needs of your system — REDOX.

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REDOX, Inc.
7800 7th Ave. S
Seattle, WA 98108 USA
(800) 421-3369

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