What is a gear pump?
A gear pump transfers fluid by rotating gears that create suction and move liquid through the pump chamber. Gear pumps are known for simple structure, reliable operation and cost-effective performance in clean oil transfer applications.
Common gear pump applications
Gear pumps are commonly used for lubricating oil transfer, hydraulic systems, fuel handling, industrial lubrication, refrigeration oil circulation and thermal oil systems.
What is a screw pump?
A screw pump transfers fluid through rotating screws that move liquid smoothly along the screw chamber. Compared with gear pumps, screw pumps are better suited to smooth, low-pulsation conveying and demanding continuous transfer.
Common screw pump applications
Screw pumps are widely used in marine fuel systems, petrochemical transfer, asphalt transfer, high-viscosity fluid conveying, hydraulic engineering and industrial oil circulation.
Which pump should buyers choose?
Choose a gear pump when the application needs a cost-effective oil transfer solution, simple maintenance and reliable performance for lubricating oils or hydraulic fluids. Choose a screw pump when the fluid is highly viscous, requires low-pulsation transfer or the system operates continuously under demanding conditions.