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Foaming Characteristics of Lubricating Oils

Foaming Characteristics of Lubricating Oils
Test Method
Foaming of lubricating oils in applications involving turbulence, high speed gearing or high volume pumping can cause inadequate lubrication, cavitation, overflow and premature oxidation. The sample is blown with a controlled volume of air at different specified temperatures, including a newer high temperature test at 150°C. The resultant foam is measured at the end of each aeration period and at different intervals afterward. In the high temperature test, the amount of time required for the foam to collapse to “0” after the aeration period is also measured.

Foaming Characteristics Test Baths
Dual-twin models for standard foaming characteristics tests

High temperature liquid bath for ‘Sequence IV’ tests

Automatic time sequence models for both tests

Custom configurations for specialized applications

Specifications
Conforms to the specifications of:
ASTM D892; IP 146; DIN 51566; FTM 791-3211, 791-3213*; NF T 60-129
Temperature Control:
Digital Setpoint and Displays °C/°F switchable
Built-in Overtemperature Cut-off Protection