Mobil Pyrotec HFD 46 is a high performance fire resistant hydraulic fluid. It is designed for use in electro-hydraulic governor control systems of steam turbines, including systems using fine tolerance servo valves. It is also recommended as a fire resistant lubricant in, for example, steam and gas turbines as well as fire resistant hydraulic systems. Mobil Pyrotec HFD 46 is FM approved as a fire resistant industrial fluid.
Mobil Pyrotec HFD 46 is formulated to provide good oxidation stability. Physical properties such as foaming, air release and demulsibility are controlled to meet the limits specified by turbine manufacturers.
Mobil Pyrotec HFD 46 has been evaluated in stringent tests for fire resistance. It will burn if the bulk fluid temperature reaches 368ºC and is exposed to an open flame. However, in the spray ignition hot manifold ignition test there is no flashing or burning at 704ºC.
Features and Benefits
Mobil Pyrotec HFD 46 has the following benefits:
- Inherent resistance to fire hazards
- Long component life due to excellent anti-wear properties
- Long fluid life due to high oxidation resistance
- FM approved