Hydraulic Oils

Castrol Anvol PE 46 XC


Fire resistant hydraulic oil


Castrol Anvol PE 46 XC is based on triaryl phosphate esters selected for their excellent hydrolytic stability. It is a high
performance ‘HF-D’ type fire resistant hydraulic fluid and contains carefully selected corrosion and oxidation inhibitors. It
has excellent hydraulic performance and good fire risk protection


Anvol PE 46 XC is suitable for use in hydraulic systems where, in the event of leakage or pipe fracture, there is risk of fire
and where water containing fluids are unsuitable due to temperature limitations or other reasons. It is specifically
designed for use in the electro-hydraulic governor control systems of steam turbines, including systems using fine
tolerance servo valves. Physical properties such as foaming, air release and demulsibility are also carefully controlled
within turbine manufacturers’ specified limits. Anvol PE 46 XC meets the requirements of: Factory Mutual Group 1
General Electric GEK 46357 Siemens TLV 9012 02/01 Alstom SBV PR1002 Ansaldo 602W917 TGM 1911

  • Offers good fire risk protection in systems where fire resistance is vital and where water containing fluids are
    unsuitable due to temperature limitations or the need to maintain a high hydraulic system pressure.
  • High flash point, fire point and auto-ignition temperature provides excellent fire resistance.
  • High resistivity eliminate spool valve corrosion/erosion due to electrokinetic effects.
  • Low chlorine level minimises valve erosion.
  • Long record of trouble free service in highly demanding hydraulic control systems on turbines.

Compatibility Anvol PE 46 XC is compatible with all metals commonly found in electro-hydraulic control systems.
Aluminium components should be hard anodised and the use of copper and copper alloy components kept to a
minimum. In common with all phosphate ester fluids, special seals are required and the following materials are
suitable: Fluropolymers (Viton) Butyl Rubber PTFE Ethylene Propylene Rubber – under certain operating conditions
Where paint materials are used, they should be epoxy resin based Service precautions Periodic measurement of the
fluid neutralisation number should be made during service as this provides a good guide to any product degradation
which may occur. The level and rate of change of neutralisation value will be dependent upon the installation, conditions
of operation, and whether in-line filtration of the fluid is carried out. Conversion precaution It is essential that rigorous
flushing should be carried out when converting systems from other fluids to phosphate esters. All scale should be
removed, and filters, hoses, seals and internally painted surfaces should be checked for compatibility with the new fluid.


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