• Difference between gear pumps and screw pumps

Gear pumps use two meshing gears to transfer fluid from the suction side to the discharge side. They are a simple and compact solution, suitable for many standard applications, but they generate a pulsating flow and can be noisier and more prone to wear over time.

Screw pumps, on the other hand, use rotating screws to move the fluid continuously along the pump axis. This operating principle ensures a smooth, non-pulsating flow, reduced vibrations and higher operational reliability, especially in lubrication systems and more demanding industrial applications

• Advantages of screw pumps

Compared to gear pumps, screw pumps offer several advantages:

• Continuous, non-pulsating flow
• Low noise levels
• Reduced vibrations
• Higher long-term reliability
• Lower component wear
• Excellent performance with viscous fluids
• Greater pressure stability
• Longer service life

For these reasons, screw pumps are often the preferred choice in systems where continuous operation and protection of lubricated components are critical.

• The advantages of SEIM screw pumps

SEIM screw pumps are specifically designed for Lift, Industrial, Marine and Oil&Gas applications, where reliability and durability are key factors.

The main strengths of SEIM pumps include:

• Long-term reliability
  Designed to operate over extended periods with minimal maintenance, even in demanding conditions
• Extremely smooth flow
  A key feature in lubrication systems for turbines, compressors, gearboxes, large industrial plants and hydraulic power units
• Low noise and vibrations
  Essential for industrial plants, marine applications, power generation and buildings where elevators are installed
• Optimized for viscous fluids
  SEIM pumps ensure efficient operation with lubricating oils, fuels, bitumen and high-viscosity fluids
• Customized solutions
  Configurable designs tailored to specific applications and system requirements

Gear pumps remain a reliable and efficient solution for many industrial applications, particularly when handling clean fluids with medium-low viscosity and where cost-effectiveness is a key factor. SEIM screw pumps, on the other hand, deliver superior performance in more demanding applications, ensuring continuous flow, operational comfort, low noise and long service life, key features across all sectors in which they operate: Lift, Industrial, Marine and Oil&Gas.