How to Set Fluid Contamination Flagging Limits

摘要

Fluid analysis looks at three major categories of fluid and construction equipment health: wear metals, contamination, and fluid properties. It is important to understand the contaminants present in fluid. A position paper from Polaris Laboratories is a good primer on the basics of "how much is too much?" Dirt (silica) limits are set based on component type. Gear systems can tolerate higher levels of dirt before significant damage is done. Dirt contamination is more critical in engines, hydraulics, turbines, and compressors and can quickly cause costly damage. Polaris derives its dirt limits from statistics as well as OEM and industry agreed-upon levels.