... and the useCommissioner Fan is also called rotary valve, air lock, usually is the structure of star, is made ... the rotor blade impeller, shell, seal, reducer and motor, etc.After materials in the upstream silo fall down ... smoothly and continually, to assure that the ratio of air and and solid in the pneumatic system, the solid ... Material: FC, 304,316,304L, 316L Backpack supply air type of rotary valve