HyJet V

HyJet V

Fire-Resistant Phosphate Ester Aviation Hydraulic Fluid

Mobil HyJet V is a Type V fire-resistant phosphate ester hydraulic fluid, which is superior in thermal and hydrolytic stability to commercially available Type IV hydraulic fluids. Better stability means the extent of fluid degradation in aircraft systems will be less than Type IV fluids, in-service fluid life will be longer, and consequently aircraft operator maintenance costs may be lower.

HyJet V provides excellent high and low temperature flow properties (kinematic viscosities) and rust protection. HyJet V has also demonstrated an improvement over the erosion protection performance afforded by Type IV fluids.

Features and Benefits

Mobil HyJet V offers the following key features and benefits:

Features

Advantages and Potential Benefits

Higher stability than Type IV fluids

Longer fluid life,

Lesser need to replace fluid due to degradation,

Reduced hydraulic system maintenance costs

Meets Boeing BMS 3-11 and SAE AS1241 Type IV and Type V requirements

Improved flammability characteristics over meeting just the Type V requirements

Low density

Reduced weight of the hydraulic fluid carried by aircraft,

Reduced aircraft fuel consumption,

Lower operating costs

Excellent rust protection

Reduced risk of equipment damage in the event of major water contamination

Excellent low and high temperature viscosity balance

Precise hydraulic system control and response even during extended range/polar flights,

Longer aircraft hydraulic system equipment life

Excellent deposit control

Longer aircraft hydraulic system equipment life,

Reduced maintenance costs

Improved protection against electro-chemical corrosion (erosion)

Protection against servo valve and pump damage

Fully compatible with all approved Type IV and Type V phosphate ester hydraulic fluids

Flexibility in use by airline operators

Applications

Mobil HyJet V is designed for use in commercial aircraft phosphate ester hydraulic systems. It meets the SAE AS1241 requirements and is included in commercial and business airframe manufacturer Qualified Products Lists, as shown below. It is compatible in all proportions with commercial Type IV and Type V phosphate ester aviation hydraulic fluids.

Specifications and Approvals

This product meets

AIRBUS NSA307110N -Type V

BOEING, BMS 3-11P, Type V, Gra

Boeing-Long Beach DMS2014H – Type 5

GULFSTREAM 1159SCH302J – Type V

SAE AS1241D, Type V, Class 1 (low density), Grade A

Properties and Specifications

Property

Acid Number, mgKOH/g, ASTM D974

0.04

Autoignition Temperature, F, ASTM D2155

>427 (800)

Bulk Modulus, Isothermal secant at 100 F/3000 psi, psi, ASTM D6793

210000

Calcium, ppm, ICPES

4

Chlorine, ppm, XRF

10

Coefficient of Thermal Expansion, 25 to 100 C, per degree C, API MPMS 11.1

0.00086 (0.00048)

Conductivity @ 20 C, MicS/cm, ASTM D2624

0.4

Density @ 60 F, lb/USg, ASTM D4052

1.000 (8.35)

Fire Point, Cleveland Open Cup, °F, ASTM D92

186 (366)

Flash Point, Cleveland Open Cup, °F, ASTM D92

174 (346)

Foam, Sequence I, Collapse Time, s, ASTM D892

32/18

Foam, Sequence II, Collapse Time, s, ASTM D892

23/13

Foam, Sequence III, Collapse Time, s, ASTM D892

34/19

Four-Ball Wear Test, Scar Diameter, 10 kg, 600 rpm, 1 h, 75 C, mm, ASTM D4172 (mod)

0.26

Four-Ball Wear Test, Scar Diameter, 4 kg, 600 rpm, 1 h, 75 C, mm, ASTM D4172 (mod)

0.21

Four-Ball Wear Test, Scar Diameter, 40 kg, 600 rpm, 1 h, 75 C, mm, ASTM D4172 (mod)

0.63

Kinematic Viscosity @ 100 F, mm2/s, ASTM D445

10.6

Kinematic Viscosity @ 127.6 C, mm2/s, ASTM D445

2.6

Kinematic Viscosity @ -15 F, mm2/s, ASTM D445

132

Kinematic Viscosity @ 210 F, mm2/s, ASTM D445

3.6

Kinematic Viscosity @ -65 F, mm2/s, ASTM D445

1350

Potassium, ppm, ICPES/AA

38

Shear Stability, % Kinematic Viscosity Loss, 40 C, %, ASTM D5621

21

Sodium, ppm, ICPES

1

Specific Gravity, 25 C/25 C, ASTM D4052

0.997

Specific Heat Capacity, cal/g-deg.C, Reference

0.42

Sulfur, ppm, ICPES/XRF

51

Thermal Conductivity at 40 C, cal/cm-sec-deg.C, Reference

33×10^-5 (0.0799)

Viscosity Index, ASTM D2270

280

Water Content, mass%, ASTM D6304

0.09

Pour Point, °F, ASTM D97 / ASTM D5950

-80

NAS 1638 Class, HIAC, ISO 11500

7

Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx

Remark

It cannot be guaranteed that the product information given above is up to date. For the latest version of the Product Data Sheet we refer to the product library of ExxonMobil.