Servo fyress HFDU 68 is a synthetic fire-resistant hydraulic fluid specially formulated to deliver excellent performance in high-pressure and high-temperature hydraulic systems. Developed using premium-quality synthetic base oils and advanced additive technology, this oil ensures outstanding lubrication, superior antiwear protection, and remarkable resistance to oxidation and degradation. Its formulation provides strong protection against corrosion, rust, and deposit formation, helping maintain cleaner systems and longer equipment life. Ideal for use in critical applications such as steel mills, foundries, forging shops, and mining operations, Servo Fyress HFDU 68 performs efficiently under extreme thermal and mechanical stress, ensuring smooth operation even in fire-prone environments. The product offers excellent thermal and hydrolytic stability, preventing sludge and varnish buildup while maintaining consistent viscosity throughout the service life. Its balanced chemistry allows for high system cleanliness, reliable seal compatibility, and superior protection for hydraulic components. Complying with the stringent fire-resistance requirements of IS: 7895 and Factory Mutual certification, Servo Fyress HFDU 68 ensures operator safety and reliability in hazardous work zones. With a kinematic viscosity of 62–74 cSt at 40°C, a viscosity index of 186, and a flash point of 266°C, it provides outstanding performance in applications demanding superior fire resistance and lubrication.
| Kinematic Viscosity cSt @ 40°C | 61-75 |
| Auto Ignition Temp,°C (type) | 400 |