Long-term use of turbine oil

The main challenges for gas and steam turbine oils are viscosity, oxidation and thermal stability. HDM high performance turbine oils are based on Group III base oils and offer excellent wear protection and oxidation stability. These products have an impressive list of OEM approvals and are the first choice of many gas and steam turbine owners.

oil viscosity and temperature

Viscosity is one of the key considerations when selecting the proper oil for a gas turbine or steam turbine cycle system. Viscosity affects equipment wear rates, energy consumption and a range of other factors. When comparing different turbine oils, it is not only the ISO viscosity grade that must be compared, but also the viscosity index.

As the temperature increases, the oil viscosity decreases and vice versa. Viscosity Index (VI) measures the change in viscosity with respect to temperature. The higher the VI, the more stable the viscosity of the oil. Various tests have proven that HDM motor oils have a significantly higher VI compared to competitors. Therefore, this oil maintains its pumpability at low temperatures and provides adequate film strength even at high temperatures.

Oxidation and Thermal Stability

High operating temperatures in large gas turbine circulation systems are a major cause of premature turbine oil failure due to oxidation. In response, gas turbine OEMs have increased their specified TOST limits to accommodate higher operating temperatures of up to 120 °C. Tests have proven that HDM oils show extended oil life exceeding 10.000 hours in the Turbine Oil Oxidation Stability Test (TOST). Combined with resistance to deposit formation and excellent sludge control, this makes the HDM range excellent turbine oils for new combined cycle turbine technology as well as for existing turbine installations.

OEM certification

The unique combination of outstanding oxidation and thermal stability, together with resistance to deposit formation and excellent sludge control, make the HDM range excellent turbine oils for new combined cycle turbine technology and existing turbine installations. No wonder these products are approved by all major steam and gas turbine manufacturers.

HDM range of turbine oils are OEM approved for: