NBB-250/6A

It is a kind of single-acting and three-cylinder pump with crank and connecting rod mechanism. Being lip-shape and self-sealing, the pressed piston is made of rubber and nylon cushion. The pump can get four flow rates with an automobile gear box. An anti-knock pressure meter, necessary spare parts and assembling tools are provided with the pump together.

Usage:
The unit is mainly used for supplying rinsing in drilling rock strata and coal seams. The rinsing may be mud, water or mixture of water and coal. It can also be used as a pump to deliver the media mentioned above.