A new mixing design has been added to the All-Purpose Valve (APV) from R. Dray Manufacturing Inc., Lynchburg, Va. The APV Mixing Valve has a spiral mixing chamber and barrier flights that minimize the amount of unmelted particles while delivering dispersive and distributive mixing. When added to an existing general-purpose screw, the valve reportedly can allow for shorter recovery times while improving color dispersion and melt homogeneity. APV valves are self-cleaning and designed to eliminate dead spots and to improve shot-to-shot repeatability.
R Dray Mfg Inc
168 Robinson Dr. Lynchburg, VA 24502
Phone (434) 525-0530 Fax (434) 525-1320