The inherent reactiveness of gases and liquids such as oxygen, ozone, or chlorine, mean they rank among the most hazardous applications for valves. Each stage of the lifecycle of these valves – design, material selection, manufacturing, cleaning, testing, packaging, handling, installation, operation, maintenance and modification – requires validated processes and competent personnel to enable long-term, safe operation at site.
Most of the existing literature on this topic calls attention to proper valve specification. This article, however, will focus on considerations of cleanliness including keeping valves oil, grease, and contamination-free at factory, at site and after maintenance.
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