Bleed valves are used to bleed air from flow lines and to aid in priming pumps. The bleeder valves provide for easy operation to release air or fine amounts of liquid through the port. It also performs as a needle valve, allowing a very fine adjustment of flow. 

Blender-dryer is a dryer with an added variable speed drive system which provides the capability of rotating at the higher speeds required for effective blending. Thus the system can be used before or after drying. The system is versatile enough to be used simply as a tumble blender or a tumble dryer or as a combined tumble blender-dryer all depending upon the product.