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Exxon HyJet IV-A plus - Fire-Resistant Phosphate Ester Aviation Hydraulic Fluid Pdf
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Product DescriptionFeatures and BenefitsApplicationsSpecifications and ApprovalsTypical PropertiesHealth and Safety 

Product Description

Exxon HyJet IV-Aplus is a fire-resistant phosphate ester hydraulic fluid designed for use in commercial aircraft. It is the best-performing Type IV fluid and offers to a great extent many of the performance capabilities of Type V fluids, including high temperature stability, low density, and rust protection. It is superior to all other Type IV fluids in these respects. Exxon HyJet IV-Aplus meets the specifications of all major aircraft manufacturers and SAE AS1241.



Features and Benefits

Exxon HyJet IV-A plus offers the following key features and benefits:




Features

Advantages and Potential Benefits
Best in high temperature stability among Type IV fluids Longer fluid life
Lesser need to replace fluid due to degradation
Reduced hydraulic system maintenance costs
Lowest density Type IV fluid Reduced weight of the hydraulic fluid carried by aircraft
Reduced aircraft fuel consumption, lower operating costs
Effective rust protection Reduced the risk of equipment damage in the event of major water contamination
Excellent low temperature flow (viscosity) properties Precise hydraulic system control and response even during extended range/polar flights
Longer equipment life
Excellent deposit control Longer equipment life
Reduced maintenance costs
Excellent protection against electro-chemical corrosion (erosion) Protection against servo valve and pump damage
Approved by all major aircraft manufacturers Use as fleet lubricant by airline operators
Fully compatible with all approved phosphate ester hydraulic fluids Flexibility in use by airline operators

Applications

Exxon HyJet IV-Aplus fire-resistant aviation hydraulic fluid is used in commercial aircraft hydraulic systems where phosphate hydraulic fluids are recommended. 


Exxon HyJet IV-Aplus meets or exceeds the following industry and builder specifications.  It is approved against the aircraft manufacturer requirements and is included in their Qualified Products Lists.



Specifications and Approvals

HyJet IV-Aplus

Meets Type IV, Low density/Is in Qualified Products List
SAE Aerospace Standard AS1241X
Airbus NSA307110X
ATRX
Boeing BMS 3-11M, Type IV, Class I and Type V, Grade BX
Boeing (Douglas Division) DMS 2014X
British Aerospace (Avro) BAC.M.333CX
Bombardier/Canadair BAMS 564-003X
Bombardier/DeHavilland X
CessnaX
EmbraerX
FokkerX
Gulfstream Aerospace 1159SCH302DX
Lockheed C-34-1224CX


Typical Properties


Test Method

HyJet IV-Aplus (1)

Limits
Kinematic Viscosity, cStASTM D 445  
at -53.9ºC (-65ºF) 13202000 max
at 37.8ºC (100ºF) 10.5510.0 -11.0
at 98.9ºC (210ºF) 3.573.35 - 3.75
Viscosity IndexASTM D 2270320 
Shear Stability, % Viscosity Drop at 40ºCASTM D 562122 
Pour Point, ºC (ºF)ASTM D 97‹-62 (-80)-62 (-80) max
Specific gravity at 25ºC/25ºC (77ºF/77ºF)ASTM D 40520.9960.993 -1.005
Density at 15.6ºC (60ºF), g/mL (lb/gal)ASTM D 40521.001 (8.35) 
Acid Number, mg KOH/gASTM D 9740.040.1 max
Water, Karl Fischer, mass %ASTM D 63040.10.2 max
Flammability   
Flash Point, ºC (ºF) ASTM D 92174 (346)160 (320) min
Fire Point, ºC (ºF)ASTM D 92185 (365)177 (350) min
Autoignition Point, ºC (ºF)ASTM D 2155›427 (800)400 (752) min
Foaming Tendency/Stability, mL foam/sec to collapseASTM D 892  
Sequence I 0/0100/100 max
Sequence II 0/075/50 max
Sequence III 0/0100/250 max
Particle count, NAS 1638 ClassAuto Counter47 max
Chemical Elements, ppm   
Calcium 110120 max
Potassium 3748 max
Chlorine 750 max
Sodium 015 max
Sulfur 220350 max
Electrical Conductivity at 20ºC, microSiemens/cm 1.40.5 min
Bulk Modulus, Isothermal secant at 100ºF/3000 psi, psi 210,000 
Thermal Conductivity at 40ºC, cal/sec/cm2/ºC (Btu/hr/ft2/ºF) 33x10-5 (0.0799) 
Coefficient of thermal expansion, 25 to 100ºC, per ºC (per ºF) 0.00086 (0.00048) 
Specific heat capacity at 40 ºC, cal/g/ºC (same as Btu/lb/ºF)  0.41 
(1) Values may vary within modest ranges    




Health and Safety

Based on available toxicological information, this product is not expected to produce adverse effects on health when used and handled properly. Information on use and handling, as well as health and safety information, can be found in the Material Safety Data Sheet (MSDS) which can be obtained from your local distributor or via the Internet on http://www.exxonmobil.com/lubes

For additional technical information or to identify the nearest U.S. ExxonMobil supply source, call 1800 443-9966  

The ExxonMobil logotype, Exxon and HyJet are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.



Exxon Mobil Corporation
3225 Gallows Road
Fairfax, VA 22037-0001
For additional technical information or to identify the nearest U.S. ExxonMobil supply source, call 1800 662-4525.
http://www.exxonmobil.com

Due to continual product research and development, the information contained herein is subject to change without notification.  Typical Properties may vary slightly.

© 2006 Exxon Mobil Corporation.  All rights reserved.
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