The Manual Cone Valve (MCV) has been designed to help companies who experience problems with butterfly valve or slide valve IBCs when handling free-flowing powders. The manually operated MCV is the perfect choice to overcome the issues of core flow, particle rolling, and mix segregation when handling product mixes such as sugar-based drinks powders, 3-in-1 beverage mixes, salt-based food ingredients and washing powders. This device can be easily retrofitted to any existing flanged IBC outlet.