S-100 Pneumatic Control - 4103012077

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The S-100 pneumatic control (part number 4103012077) is the load/unload control element that tells a rotary screw air compressor when to pump and when to idle. It senses system pre ssure and shifts the inlet valve accordingly, so the machine only makes air when the plant is actually drawing it. A worn or sticking control is one of the most common reasons a compressor short-cycles or refuses to unload, which wastes energy and puts needless hours on the airend. Fitting a fresh control restores clean load/unload behavior. Browse related air compressor parts, or contact us with your model number if you are not certain this is the correct control for your unit. Show more