Hygienic rotary lobe pump
max. 960 rpm | TRA-I series
BOAO Machinery Company
TRA-I type Lobe pump is with Manual speed controller , which the speed can be adjusted by a handwheel.
Applications
The TRA tye Rotary lobe pump is a lobe rotor positive displacement pump of a sanitary design suitable for use in the dairies, food-processing, beverage, pharmaceutical and fine chemicals industries.
This pump is perfect for managing all kinds of fluid, of either low or high viscosity, in the food-processing, dairies, and cosmetics industries, as well as for filtering and bottling applications. Fluids containing fragile solids such as junket can be pumped without damage thanks to the specially designed lobes.
Operating principle
The TRA Lobe pumps basically consist of two lobe rotors which rotate synchronously inside a casing without touching each other.
The two rotors divide the rotor chamber into to several smaller rooms and move in order as: a→b→c→d. At position a, only room Ⅰif filled with medium; at position b, some medium is closed in room B; at position C, some medium is also closed in room A, and at position d, room A and B are connected with room Ⅱ; here the medium is delivered to the outlet. With this circulation, the medium (material) is delivered through the pump continuously.
As the rotors rotate, the spaces between the lobes and the casing are successively filled with fluid, which is transported to the discharge nozzle with a fixed amount of displacement. The pumped fluid forms a continuous stream thanks to the tolerances between the lobes and the pump casing, thus ensuring an efficient pumping.
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