Industrial ST065700AV Air Compressor Unloader Valve

ST065700AV Industrial Air Compressor Unloader Valve is a replacement component designed for 5/16" tubing connections on Campbell Hausfeld and Airboy family compressors. The valve is marketed as "Air Compressor Unloader Valve for 5/16" Tubing" under part number ST065700AV, with cross-listings such as TF038300AJ for the same part. Compatibility listings frequently reference Campbell Hausfeld and Airboy lines, including mentions of Saylor-Beall and Kellogg brands in the same catalog ecosystems. This unloader valve is used to regulate air release during cycling, serving as a direct substitute for the original valve in compatible models rather than a universal part. Retailers emphasize ST065700AV as a 5/16" tubing solution for those replacing worn or leaking unloader valves in supported equipment. Ensure your model uses 5/16" tubing and that the valve is listed as compatible with your specific Campbell Hausfeld/Airboy model before purchase.