pneumatic conveying equipment rotary valve / rotary feeder / air lock In 1999 our company began ... Ltd. in Japan to design and manufacture rotary feeders. UP to now, our companys rotary feeder have eight type, GRL, GRV ... and deflate chamber, 1 machine number, 2 spec. The rotary feeder, which transportation capacity reach 0.5-200 t/h ... , can satisfy difference trade, medium, and work status. Rotary valve