Pumping and mixing pump

The pump is a pump with double barrels and a single force principle.When the upper barrel and the lower barrel are working at the same time，the upper barrel work with the annular space that formed with different diameters between the upper plunger and the lower plunger，the upper oil flow into the space through the inflow valve of the upper barrel，and flow out through the outflow valve of the upper pump.The lower oil flow into the lower barrel through the Inflow valve of the lower barrel，and flow out through the outflow valve of the lower barrel，and up to the ground mixed with the upper oil.The pump is suitable for separated levels sucking from well.