Bearings That Solve Low Lubricity Fluid Problems

GRAPHALLOY® bearings and bushings are used in many low viscosity pump applications to help eliminate operational problems due to potential flashing and the low lubricity nature of these liquids.

Pumping fluids with low lubricity such as LNG and Natural Gas Liquids (NGLs) can be especially difficult for metallic bushings. The hydrodynamic film provided by these low lubricity liquids is unable to provide sufficient lubrication, which can lead to metal-on-metal contact, galling, or seizing. With plastic bushings, high speed contact in a pump can overheat the bushing.

The Graphalloy material is non-galling, self-lubricating, and works in a wide temperature range, making it a solution for these difficult pump applications. Graphalloy bushings and wear rings can improve MTBR in low lubricity pumps due to these unique qualities. GRAPHALLOY bushings and wear rings also allow for tighter clearances which improve reliability, lower vibration, and increase efficiency in vertical and horizontal pumps.

Successful Graphalloy-fitted pumps in low lubricity service include light hydrocarbons, CO2, LNG, Propane, Butane, Ethylene, and more. GRAPHALLOY bearings for low lubricity pump problems

Click here for more information about GRAPHALLOY's success in troublesome pump applications.

Read about Graphalloy's Success in a application that experienced frequent dry running