Portable Filtration Systems for Hydraulic Fluid Maintenance

Parker Hannifin has launched the GLFTrolley, a portable filtration system engineered to remove free water and particulate contaminants from hydraulic and lubrication fluids. The mobile unit targets preventive maintenance and oil transfer operations across the gas, marine, mining, forestry, and in-plant manufacturing sectors.

System Design and Flow Capacity
The filtration hardware offers nominal flow rates of 20 liters per minute (5.2 US gpm) and 40 liters per minute (10.6 US gpm). The system architecture relies on integrated gear pumps driven by a high-performance single-phase motor designed for continuous duty operation. The compact trolley can be deployed as a mobile unit for the rapid purification of small-to-medium fluid reservoirs, or installed as a stationary, permanent offline filtration loop on larger hydraulic architectures.

Operational Impact and Contamination Control
Effective filtration prior to fluid integration is necessary to prevent system degradation. By actively removing water and particulate matter, the trolley prevents accelerated component wear within hydraulic lines and extends the operational lifecycle of the base fluid. Sanna Tefke, Product Manager at the Hydraulic & Industrial Process Filtration Division of Parker Hannifin, highlighted the environmental necessity of the hardware: "Machines operate in a range of environments such as mining, marine and forestry where dirt, dust, water and various particles are unavoidable."

Additional Context: This section details technical specifications and competitive benchmarking not included in the original product announcement
In industrial hydraulics, water contamination exists in three states: dissolved, emulsified, and free water. Free water is particularly damaging to system integrity, as it degrades the fluid's lubricity, accelerates the oxidation of base oils, and can induce vaporous cavitation within high-pressure pumps. Portable offline filtration systems, commonly referred to as "kidney loop" filters, are utilized to circulate and clean fluid independently of the main machine's primary hydraulic circuit. This allows maintenance technicians to pre-filter new oil—which frequently arrives from refineries with particulate levels exceeding standard ISO 4406 cleanliness targets—before it is transferred into a machine's reservoir. Operating in this offline capacity, the GLFTrolley competes directly with mobile filtration carts from manufacturers such as Schroeder Industries, MP Filtri, and Des-Case, which similarly utilize gear pumps to achieve target ISO cleanliness codes without disrupting the host machine's operation.

Edited by Lekshman Ramdas, Induportals editor – adapted by AI.

www.parker.com