Leistritz Screw Pumps , Series L4 are self-priming rotary positive displacement pumps for pressure ranges of 16 bar (232 psi), 40 bar (580 psi) and 150 bar (2175 psi) suitable for the transport of lubricating and non-lubricating, low and high viscous liquids with abrasive particles.
Applications:
↗ Oil & Gas
↗ Tank Storage
↗ Chemical and Petrochemical Industry
↗ Power Generation and Fuel Oil Systems
↗ Shipbuilding
Design and Operation:
Selfpriming Screw Pump with two screws in double volute and hydraulically balanced design. The drive torque is transmitted from the double helix drive screw to the likewise double helix idler screw via herringbone gears.The screws rotate closely meshing but without contact in the spindle bore of the interchangeable pump casing insert. As a result of the special profile geometry sealed cavities are formed which transport the pumped liquid continuously with low shear and without turbulences from both suction chambers axially to the discharge chamber.For optimum strength and low shaft deflection both drive screw and idler screw are manufactured from single piece bar stock.