S Series Triple Screw Pumps

Blackmer® S Series Triple Screw Pump is a type of positive displacement rotatory pump for handling clear, lubricating liquid without solid content. The internal structure of the triple screw pump includes a male drive spindle, two female secondary spindles and the case that holds the three screws. The sealed chamber moving at a uniform speed is formed between the case and the three rotating screws along the axial direction. During the male drive screw rotation, liquid moves in the sealed chamber along the axial direction continuously and smoothly from suction to discharge.

The durable triple screw pump line is perfectly suited for applications in the chemical process, general industrial, energy, transport and commercial marine markets. Featuring low noise and little maintenance, these reliable pumps are self-priming and environmentally friendly. They provide flow rates ranging from 2 to 2,600 L/min (0.5 to 685 gpm) at differential pressures up to 100 bar (1,450 psi). S Series pumps can handle viscosities from 3 to 5,000 mm²/s (cSt) and temperatures up to 150°C (302°F).