CASTROL ANVOL PE 46 B

Description

Castrol Anvol™ PE 46 B is a high performance fire resistant hydraulic fluid which is primarily intended for use in steam

turbine governor and boiler control systems. It is based on butylphenyl phosphate esters selected for their excellent

hydrolytic stability and contains carefully selected corrosion and oxidation inhibitors. It has excellent hydraulic

performance and provides good fire risk protection.

Application

Castrol Anvol PE 46 B 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 team turbines, including systems using fine

tolerance servo valves. Castrol Anvol PE 46 B was developed to eliminate service problems in high pressure systems

resulting from spool valve erosion/corrosion - fluid leakage and loss of response - by possessing the properties known

to minimize this effect, notably high resistivity, low chlorine content and a high level of fluid cleanliness. Physical

properties such as foaming, air release and demulsibility are also carefully controlled within turbine manufacturers’

specified limits.

Meets the requirements of major OEMs such as General Electric, Siemens, Mitsubishi Hitachi Power Systems and

Alstom.

Meets requirement of FM Global against Standard 6930 for ‘Less flammable hydraulic fluids ’.

Meets the requirements of ISO Standard 12922 and ASTM D4293 for HFDR-type fire-resistant hydraulic fluids.

Advantages

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 eliminates spool valve corrosion/erosion due to electrokinetic effects.

Low chlorine level minimizes valve erosion.

High level of fluid cleanliness - minor amounts of particulate contamination can cause abrasive wear, filter

blockage and valve sticking.

Care and Handling

User Advice

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 dependant 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.

Compatibility

Castrol Anvol PE 46 B is compatible with all metals commonly found in electro-hydraulic control systems. Aluminium

components should be hard anodized 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.