grease pump / internal-gear / rotary lobe / with two inner intakes

The pump with 2 additional inner intakes, 1 for every direction of rotation, positioned within the pump body. The typical requisition is to feed a cylinder with the internal rod and when the cylinder is working, the pump first takes the volume into the other chamber, then, to compensate the volume distinction because of the vicinity of the rod, it takes the substance of the tank as well.

The square base or the side is 62mm and a lid diameter of 59mm. The hub lid diameter is 20 x 4mm and a diameter shaft of 7mm with 2.5mm drive. It has a variable height in accordance to flow rate from 29 to 33mm.