Presentation Profile
Standardized Evaluation of Grease Flow Characteristics for Low-Temperature Applications
Currently Scheduled: 10/14/2025 - 2:20 PM - 2:40 PM
Room: South Lobby
Main Author
Dr. Raj Shah - Koehler Instrument Company
- Angelina Precilla - Koehler Instrument Company
- Gavin Thomas - Koehler Instrument Company
- Lei Andre Delos Reyes - Koehler Instrument Company
- Mojan Jafaripour - Koehler Instrument Company
Abstract:
Lubricating greases undergo substantial viscosity increases at sub-zero temperatures, impeding flow and potentially causing mechanical failures in cold environments. To address this challenge, the industry requires reliable test methods that accurately characterize grease behavior under extreme cold conditions. This study presents an implementation of the Kesternich Method (DIN 51805) for quantitative assessment of grease flow properties at temperatures down to -50°C. Using a controlled-pressure approach with a Low-Temperature Grease Flow Tester, the method demonstrates high repeatability in determining flow points across multiple grease formulations. Experimental results establish a consistent exponential pressure-temperature relationship, validating the method's accuracy for comparative testing. With its rapid cooling capability and minimal sample requirements, this standardized approach enables efficient evaluation of low-temperature grease performance, supporting proper lubricant selection for industrial applications in arctic climates and cold-weather operations.
