In many industrial processes, materials such as powders, granules, dust, ash, and other dry solids need to move from one stage of a system to another without interrupting the overall operation. While conveyors and pneumatic systems handle much of this movement, controlling how the material enters or leaves the system is equally important. This is where a rotary valve becomes useful... https://www.bsaengineeringindia.com/rotary-valve-manufacturers-in-india.php