Prior to installing our last filler line, we thought our compressed air system (Figure 1, online at http://goo.gl/Hno9Y4) was adequate. Now, all our pressure-regulating valves (PRVs) are operating near 100% and our actuated valves are having trouble opening or closing. Our dryer is a conventional chiller dryer. The instrument air employs an additional desiccant dryer and a series of water/oil traps. Our plant standard assumes 60-psig actuators and 78-psig air.
展开▼
