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171. The pneumatic propulsion control system used on your oil platform supply vessel uses a diaphragm-operated relay valve as shown in the illustration. Periodically, the valve is to be disassembled for cleaning and inspection. What statement best describes the proper method for lubrication upon reassembly
O-rings on pneumatic relay valves require lubrication during reassembly to ensure smooth operation and proper sealing. Silicone-based grease is the appropriate lubricant as it is compatible with common O-ring materials and provides lasting lubrication without damaging the elastomer.
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