AeroShell Fluid 31
AeroShell Fluid 31 is a synthetic hydrocarbon aircraft hydraulic fluid with improved fire resistance, high flash point, coupled with good oxidation and thermal stability.
Features and benefits
Enhanced Fire Resistance
Formulated with improved¹ fire-resistant properties, reducing fire risks in high-temperature operations.
High Oxidation Stability and Corrosion Resistance
Resists thermal degradation and protects against rust and corrosion, extending fluid life and maintaining consistent performance.
Low-Temperature Fluidity
Performs reliably in cold conditions, ensuring smooth operation and quick response times.
Robust Anti-Wear Protection
Protects critical hydraulic components from wear, enhancing system durability and reliability.
Wide Operating Temperature Range
Operates effectively across a broad range of temperatures, providing consistent performance in varying environments.
Specifications & approvals
| Country | Specification |
|---|---|
| United States | MIL-PRF-83282D |
| French | DCSEA 437/B |
| NATO Code | H-537 |
| Joint Service Designation | OX-19 |
The TDS and MSDS are in English, but you can find these documents for other countries in the Shell EPC area.
Applications
AeroShell Fluid 31 is recommended for use in aircraft, ordnance, and missile systems operating from -40°C to +205°C (-40°F to +401°F). This fluid should be considered for use in auto pilots, shock absorbers, brakes, flight control systems, hydraulic servo-controlled systems and other systems using synthetic elastomer seals.
An increasing number of aircraft manufacturers now recommend use of this type of fluid in aircraft hydraulic systems in preference to mineral hydraulic oils. This move has been prompted by the need to use fluids with better fire-resistant properties.
AeroShell Fluid 31 is also approved for use in the Honeywell (formerly Garrett) cooling turbine (cabin air compressors). Increasingly this type of hydraulic fluid is being adopted for use in hydraulic systems of military aircraft in place of mineral hydraulic fluids. AeroShell Fluid 31 is a synthetic hydrocarbon oil and should not be used in contact with incompatible seal materials.
AeroShell Fluid 31 is compatible with AeroShell Fluids 41 and 61 and can be used in systems designed to operate with MIL-PRF-5606, MIL-PRF-6083, MIL-PRF-87257 and MIL-PRF-46170 fluids. Chlorinated solvents should not be used for cleaning hydraulic components which use AeroShell Fluid 31. The residual solvent contaminates the hydraulic fluid and may lead to corrosion.
Health, Safety and Environment
Health and Safety
- This product is unlikely to present any significant health or safety hazard when properly used in the recommended application and good standards of personal hygiene are maintained.
- Avoid contact with skin. Use impervious gloves with used oil. After skin contact, wash immediately with soap and water.
- Guidance on Health and Safety is available on the appropriate Safety Data Sheet, which can be obtained from https://www.epc.shell.com.
Protect the Environment
- Take used oil to an authorised collection point. Do not discharge into drains, soil or water.
Additional information
Advice
- Advice on applications not covered here may be obtained from your Shell representative.
Typical Physical Characteristics
These characteristics are typical of current production. Whilst future production will conform to Shell's specification, variations in these characteristics may occur.
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Disclaimers
¹ Compared with standard mineral-based fluid approved to MIL-PRF-5606.