![]() ![]() Because water vapor is always present in compressed air, moisture control is always needed. Some air compressor systems include equipment to minimize moisture, however, even compressor systems with after-treatment solutions cannot completely prevent the buildup of damaging water vapor. It also can have detrimental effects on other components. This high-temperature air dries all of the lubricant in the tool leading to surface to surface contact and also deteriorates gaskets and O-rings. It is important to note that running air tools with higher inlet temperatures air to avoid this build-up of liquid moisture is also detrimental to air tool operation. The number one cause of deterioration and failure in industrial and contractors air tools and related equipment are water-related issues. It then starts to condense this moisture into water. Even before this hot, moist compressed air reaches the air tool, it starts to cool down just after it leaves the compressor. With high moisture content in the compressed air, this rapid cooling has been known to cause freeze-ups at the exhaust ports of pneumatic tools. As you compress air it gets very hot and because the air is very hot, the accumulated water in it remains as a vapor, however, when compressed air is expanded through air tools it cools rapidly. When this air is compressed, moisture in the inlet air concentrates with each cubic foot drawn in. You know this water vapor as humidity, and it is always present in the air around us in varying degrees. The biggest concern in the operation and life expectancy of your professional-grade pneumatic tools is moisture! Specifically, water vapor. ![]()
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