The DS pump is a 24V DC electrically operated, piston pump, intended for pumping lubricating grease in small progressive systems. With its compact design, and disposable grease cartridge, it will integrate into a machine tool perfectly.
As the motor rotates, the eccentrically mounted connecting rod, moves the piston in a reciprocating motion. The stroke of the piston, and hence the delivery of the pump, is dictated by the degree of offset on the eccentric plate. As the piston moves forward, the grease in the metering chamber is pushed forward. Once the piston passes the grease inlet hole, the remaining grease is pushed through the check valve, and out into the main lubrication line. Thre returns of the piston draws in grease from the reservoir, while the check valve prevents any grease from being sucked back through the outlet. A pressure relief valve opens at a set pressure, preventing over pressurising of the system by relieving the grease ack into the reservoir.