Farval DA-4 Manual Pump

DA Lubricator Manually Operated, Dual Line, Grease & Oil

The DA Lubricator is a manual grease and oil, double-action piston high pressure pump, ideally suited for dual line systems. Suction filter screen is located at inlet and a grease level indicator assembled on the top cover.

The DA Lubricator is widely used in steel plants, mines and heavy-duty industrial applications.

As the handle is moved back and forth, the rack drives the piston, pressing the lubricant through a check valve and into the outlet. As lubricant from the pump drives the distributor piston to one side on the dualine valve, pressure increases and remains that way, until direction conversion knob is used
to change the direction of the pressure. when this occurs, one line relieves pressure and the other delivers lubricant.