Varnish

Detail of power generation turbine fins in an industrial facility.

The Selection and Servicing of Turbine Oils

Turbine engines have different demands than other engines; they have unique structures, operating cycles, operating temperatures, and contamination potential. As such, turbine engines require unique lubricants formulated specifically to meet these demands.
It is important, when choosing a turbine oil, to understand how these lubricants differ, physically and chemically, from other lubricants. The lubricant selection process is also a good time to address turbine oil system flushing and the initial filtration requirements.

Varnish Removal: Chevron’s Holistic Approach to Tackling Varnish

With the introduction and Group II turbine oils, varnish has presented itself as one of the most prevalent issues facing turbomachinery equipment operators. While ion exchange resin manufacturers and chemical detergent manufacturers have scrambled to offer solutions to combat existing problems with varnish, it wasn’t until recently that Chevron Lubricants developed a two part solution that uses the same technology used to remove varnish deposits to also prevent future varnish formation.