Gear pumps are positive displacement technologies used for accurate industrial fluid handling. ARO solutions support flows up to 261 m³/h (1,150 GPM), pressures up to 31 bar (450 psi), and viscosities up to 4,400,000 cSt, depending on the product range.
With more than 95 years of expertise, ARO supports mission‑critical industrial processes worldwide.
ARO offers a broad portfolio designed for continuous operation in demanding environments. Each product family answers specific requirements for pressure, flow, and fluid behavior.
Engineered for continuous operation in demanding process applications. Built with robust, precise designs to ensure long-term durability and reduced downtime.
Suitable for high pressure, high temperature, abrasive, and high-viscosity fluids. Specific designs handle fluids with solids while reducing seizure risk.
Supports flow rates up to 261 m³/h (1,150 GPM). Operates at pressures up to 21 bar (300 psi), with selected designs reaching 28 bar (406 psi).
Delivers accurate, pulse-free flow with reduced liquid shear. Ensures reliable transfer for sensitive and demanding process fluids.
Available with advanced sealing options, including TuffSeall™, mechanical, and slurry seals. Offered in cast iron, stainless steel, AISI 4140, and 17-4 PH. Widely used in chemical processing, asphalt, food, polymers, and technical fluids.
Designed for industrial lubrication and oil circulation systems. Ensures continuous oil flow to protect rotating equipment and reduce wear.
Delivers flow rates from 17 to 719 L/min (4.6 to 190 GPM). Handles viscosities up to 2,000 cSt with stable and consistent performance.
Operates at differential pressures up to 18 bar (261 psi). Seal options support system pressures up to 55 bar (798 psi). Supports operating temperatures up to 200 °C (392 °F).
Optimized for compact installation and continuous operation. Built for reliable performance in demanding industrial environments.
Flexible mounting and porting options simplify system integration. Commonly used in gearboxes, compressors, turbines, and industrial machinery.
Designed for applications requiring leak‑free operation. Magnetic coupling eliminates dynamic seals, reducing maintenance and failure risks.
Covers flow rates from 2.3 to 2,460 L/h (0.6 to 650 GPH). Delivers pulse‑free flow with metering accuracy within ±1%.
Supports nominal differential pressures up to 17.2 bar (250 psi). Handles system pressures up to 34.5 bar (500 psi), depending on configuration.
Processes fluids from 0.3 to 2,000 cP without speed reduction. Operates from –46 °C to 176 °C (–50 °F to 350 °F).
Well suited for chemical processing, dosing, cooling, and sensitive fluids. ATEX‑certified configurations are available for hazardous environments.
A gear pump is a positive displacement solution using rotating gears to move fluid. It delivers a fixed volume per rotation, independent of pressure variations. This ensures stable, repeatable flow for industrial process applications.
