Product Overview Derill C917 series vacuum pump oil to high quality base oil complex with a wide selection of additive blending, applicable to all types of mechanical vacuum sealing and lubrication. This product is in accordance with 40 ℃ kinematic viscosity divided into 68,100 other brands. Main features 1, low vapor pressure: This is the most important properties of the vacuum pump oil, since the pump requires a vacuum of 1.33 × 10-4Pa (or 10-6mmHg), high demand reached 1.33 × 10-6Pa (10-8mmHg ) The following two, suitable viscosity and good viscosity-temperature characteristics: vacuum cavity formed by the exhaust gas volume changing effect, requires oil should have a suitable viscosity and good viscosity-temperature characteristics. 3, good thermal oxidation stability: vacuum pump to keep the high-speed development, due to the high speed friction sliding vane and pump the oil temperature rise, oil is easily oxidized and decomposed. Make the system steam pressure, reduce the degree of vacuum, thus requiring vacuum pump oil has excellent thermal oxidation stability. 4, good corrosion resistance and resistance to emulsification: vacuum suction if it is corrosive gas, chemical changes will occur with the oil inside the pump corrode metal parts. In addition, the intake air often contains moisture condensation, causing vacuum pump oil emulsion and metal corrosion, it is required to have good corrosion resistance and resistance to emulsification (water separation performance). More prominent in the emulsification process uses vacuum dehydration vacuum pump oil. 5, high flash point: The main requirement does not carry the pump light components, so as not to affect the saturated vapor pressure of the oil. 6, the lower limit pressure: Extreme vacuum pump oil pressure is an important use of performance indicators to understand the extreme pressure at the lowest vacuum pump ultimate pressure.