Kral KF‑74.DAA Magnetic‑Coupling Triple‑Screw Pump with Motor (MFG 2022) is a state-of-the-art positive displacement pumping solution engineered for modern industrial and marine fluid systems. Featuring a magnetic coupling, this 2022-manufactured pump ensures hermetic operation by eliminating conventional shaft seals—perfect for safely handling sensitive, hazardous, or flammable fluids. The magnetic drive provides leak-free performance and simplifies maintenance by isolating the sealed fluid environment from external drive components.
The core pump design employs Kral’s triple-screw mechanism comprising a high-precision central drive screw and two matched idler screws. This configuration creates axial fluid movement in sealed chambers, delivering smooth, pulse-free flow with minimal shear stress. Tight internal clearances deliver excellent volumetric efficiency and reduced internal slip, while the balanced screw assembly mitigates bearing loads, resulting in quiet, reliable operation under continuous duty.
Paired with a matched motor—also from 2022—this ready-to-install unit delivers optimal torque and flow according to system specifications. The magnetic coupling ensures torque transmission through a sealed barrier, eliminating seal maintenance and reducing downtime. Compact and rigidly constructed, the pump-motor unit supports easy installation into compact layouts or retrofit projects. Standardized porting and mounting flanges guarantee seamless integration into OEM systems or existing piping arrangements without custom modifications.
Precision-engineered with high-grade materials and pressure-tested before dispatch, the KF‑74.DAA meets modern performance and safety standards. Its compact footprint, minimal vibration, and low noise operation make it suited for sensitive lubrication, fuel handling, or hydraulic support circuits. Overall, this pump offers advanced, leak-free fluid management—a reliable and durable solution for engineers seeking contamination-controlled, maintenance-efficient, and energy-effective pumping technology in demanding environments.
