Door closer oil adopts three types of hydrotreating base oil, multifunctional composite additives and viscosity index improver with high shear performance. The viscosity index improver contained in this product is manufactured by German synthetic technology, which enables the oil to have excellent fluidity at low temperatures. The door closer can be closed smoothly at low temperatures, and the viscosity will not be lost after long-term use, so that the closing time of the door closer is stable for a long time.

Product performance:

■ Excellent air release, making it difficult for the door closer to generate air lock during operation and running smoothly;

■ Excellent rubber compatibility, which can effectively improve the service life of door closer;

■ Excellent corrosion resistance, no corrosion to the metal in the door closer, improving the service life of the door closer;

■ Excellent viscosity temperature property, the damping force produced by the door closer changes little when the temperature rises, and the door closer works stably;

■ Outstanding low-temperature fluidity and high-temperature stability enable the door closer to operate effectively in harsh environments;

■ Excellent shear stability, which can effectively maintain the automatic closing time of the door closer.

Application scope:

Suitable for heavy-duty steam turbine units, gas turbine units, and combined power generation units.