AEROSHELL HYDRAULIC FLUIDS AEROSHELL HYDRAULIC FLUIDS AeroShell Hydraulic Fluids are used in hydraulic applications on aircraft and consist of:AeroShell Fluid 4 AeroShell Shock Strut Fluid (SSF) AeroShell Landing Gear Fluid (LGF) AeroShell Fluids 4 and 41 are mineral hydraulic fluids; the latter has superior cleanliness characteristics and is the more widely used grade. AeroShell Fluid 71 is a preservative mineral hydraulic fluid for use in hydraulic systems and components that are in storage as well as hydraulic system test rigs. AeroShell Fluid 31 is a synthetic hydrocarbon fire resistant hydraulic fluid. This type of fluid is increasingly replacing mineral hydraulic fluids. AeroShell Fluid 51 is a low temperature synthetic hydrocarbon fire resistant hydraulic fluid. AeroShell Fluid 61 is a preservative synthetic hydrocarbon fire resistant hydraulic fluid. AeroShell SSF and LGF are hydraulic fluids specifically for landing gear shock struts of some aircraft. For some types of aircraft, proprietary non-inflammable fluids of non-petroleum origin (phosphate ester type) are required. Shell Companies can supply Skydrol® 500B-4 and LD-4 phosphate ester fluids against a known demand. HYDRAULIC FLUIDS

AEROSHELL HYDRAULIC FLUIDS HYDRAULIC FLUIDS For many years, hydraulic systems have been utilised in military and commercial aircraft. They have provided power transfer which has been proven to be reliable, efficient and lightweight compared to mechanical or electrical power transfer services. Since the 1940s, MIL-H-5606 hydraulic fluid, a mineral oil-based fluid, has been one of the most widely used types of fluid. This hydraulic fluid has provided excellent operational properties over the temperature range of –54°C to 135°C (–65°F to 275°F). A major deficiency of MIL-H-5606 fluids, which was...

AEROSHELL HYDRAULIC FLUIDS HYDRAULIC FLUIDS COMPATIBILITY Mineral hydraulic fluids (MIL-PRF-5606, MIL-PRF-6083) are completely compatible and miscible with synthetic hydrocarbon hydraulic fluids (MIL-PRF-83282, MIL-PRF-87257 and MIL-PRF-46170) and vice versa. Mineral hydraulic fluids (MIL-PRF-5606 and MIL-PRF-6083) and synthetic hydrocarbon hydraulic fluids (MIL-PRF-83282, MIL-PRF-87257 and MIL-PRF-46170) are not compatible with phosphate ester hydraulic fluids and on no account should they be mixed. CHANGEOVER Since mineral hydraulic fluids are compatible with synthetic hydrocarbon fluids changeover...

AEROSHELL HYDRAULIC FLUIDS HYDRAULIC FLUID CLEANLINESS - SUPERCLEAN PROPERTIES The latest issues of MIL-PRF-5606, MIL-PRF-6083, MIL-PRF-46170, MIL-PRF-83282 and MIL-PRF-87257 require hydraulic fluids to be “Superclean”. By superclean it is meant that there is a very tight control on particulates in the fluid. Over the years, hydraulic systems and components have gotten smaller while operating pressures have increased. As a result, particulates in the hydraulic fluid are more likely to cause system failures through valve sticking, erosion by impingement, wear, or blockages of nozzles and tubes....

Meets – – – – – Equivalent – – – – – – – – – European Production

AEROSHELL HYDRAULIC FLUIDS HYDRAULIC FLUIDS AeroShell Fluid 4 is a mineral hydraulic oil with very good low temperature characteristics and capable of operating over a wide temperature range. AeroShell Fluid 4 is composed of a mineral oil base stock and a complex additive package which results in a product with excellent low temperature flow and anti-wear properties, exceptional antifoam characteristics, and excellent oxidation stability. AeroShell Fluid 4 is dyed red. The useful operating temperature range unpressurised is -54°C to 90°C. The useful operating temperature range pressurised is...

AEROSHELL HYDRAULIC FLUIDS HYDRAULIC FLUIDS AeroShell Fluid 31 is a synthetic hydrocarbon based aircraft hydraulic fluid with greatly improved fire resistance characteristics when compared with conventional petroleum products. AeroShell Fluid 31 has a specially designed base stock which imparts a relatively high flash point, excellent low temperature properties and good oxidation and thermal stability. In addition, AeroShell Fluid 31 is formulated with high technology additives to provide oxidation and corrosion resistance, anti-wear, and anti-foaming protection. AeroShell Fluid 31 is superclean...

AEROSHELL HYDRAULIC FLUIDS NOTES Table continued HYDRAULIC FLUIDS HYDRAULIC FLUIDS A viscosity/temperature curve is shown at the end of this section.

AEROSHELL HYDRAULIC FLUIDS HYDRAULIC FLUIDS AeroShell Fluid 41 is a mineral hydraulic oil manufactured to a very high level of cleanliness, and possesses improved fluid properties. AeroShell Fluid 41 contains additives which provide excellent low temperature fluidity as well as exceptional anti-wear, oxidation -corrosion inhibition and shear stability. In addition metal de-activators and foam inhibitors are included in this high viscosity index fluid to enhance performance in hydraulic applications. AeroShell Fluid 41 is capable of wide temperature range operation. AeroShell Fluid 41 is dyed...

AEROSHELL HYDRAULIC FLUIDS A viscosity/temperature curve is shown at the end of this section. HYDRAULIC FLUIDS

AEROSHELL HYDRAULIC FLUIDS AEROSHELL FLUID 51 6.20 HYDRAULIC FLUIDS AeroShell Fluid 51 is a synthetic hydrocarbon and ester based fluid for use in hydraulic systems which require reliable operation in extreme low and high temperatures as well as performance outside the capability of traditional MIL-PRF-5606 mineral based fluids. AeroShell Fluid 51 is formulated with high technology additives to provide oxidation and corrosion resistance, anti-wear, and anti-foaming protection. AeroShell Fluid 51 is superclean filtered to ensure optimum performance in particulate monitored systems. AeroShell Fluid...

AEROSHELL HYDRAULIC FLUIDS HYDRAULIC FLUIDS

AEROSHELL HYDRAULIC FLUIDS HYDRAULIC FLUIDS AeroShell Fluid 61 is a synthetic hydrocarbon base hydraulic fluid specifically inhibited to provide excellent oxidation stability for the oil and good corrosion preventive protection to the hydraulic system. AeroShell Fluid 61 MIL-PRF-46170D Type I is undyed. AeroShell Fluid 61 MIL-PRF-46170D Type II is dyed red. AeroShell Fluid 61 has an operating temperature range of -40°C to +204°C. APPLICATIONS AeroShell Fluid 61 is designed for use where a fire resistant preservative grade hydraulic fluid is required and is suitable for operational use from -40°C...