Gear Oils

Castrol Alpha VT 32

VISCOSITY - ISO 32

Turbo transmission oil

DESCRIPTION

Castrol Alpha™ VT 32 has been developed specifically for Voith Turbo transmissions to provide long service life and
realibility, and to exceed the Voith specification 3.90-8e_2011-07

APPLICATIONS

Alpha VT 32 is formulated for hydrokinetic transmissions used mainly in railway locomotives. Other applications include
trucks and heavy off-highway equipment incorporating this type of transmission unit. The oil is also suitable for
conventional industrial gearboxes where a low viscosity oil is suitable. This oil provides higher load carrying
performance, together with excellent oxidation resistance, anti-corrosion and minimal foaming.
Alpha VT 32 is fully compatible with nitrile, silicone and fluropolymer seal materials.
Alpha VT 32 meets the requirements of:
Voith Turbo Specification 3.90-8e_2011-07

ADVANTAGES
  • Long service life
  • Excellent load carrying and micropitting resistance
  • Good seal compatibility
  • Low foam and rapid air release
  • Excellent demulsification
TYPICAL CHARACTERISTICS
Name Method Units Alpha VT 32
Density @ 15°C / 59°F

 

ISO 12185, ASTM D4052 kg/m³ 870
Kinematic Viscosity @ 40°C / 104°F

 

ISO 3104, ASTM

D445

mm²/s 32
Kinematic Viscosity @ 100°C / 212°F

 

ISO 3104, ASTM

D445

mm²/s 5.4
Viscosity Index

 

ISO 2909, ASTM

D2270

None 105
Pour Point

 

ISO 3016, ASTM

D97

°C/°F -42 / -44
Flash Point – open cup method

 

ISO 2592, ASTM

D92

°C/°F 234 / 453
Water Separation @ 54°C / 129°F (40/37/3)

 

ISO 6614, ASTM

D1401

minutes 5
Air Release @ 50°C / 122°F

 

ISO 9120, ASTM

D3427

minutes 4
Foam Sequence I – tendency / stability

 

ISO 6247, ASTM

D892

ml / ml 0 / 0
Foam Sequence II – tendency / stability

 

ISO 6247, ASTM

D892

ml / ml 10 / 0
Foam Sequence III – tendency / stability

 

ISO 6247, ASTM

D892

ml / ml 0 / 0
Rust test – synthetic seawater (24 hrs)

 

ISO 7120, ASTM

D665B

Pass
FZG Gear Scuffing test – A/8.3/90 ISO 14635-1 Failure Load Stage >12
FZG Gear Scuffing test – A/16.6/90 ISO 14635-1 Failure Load Stage 12
FZG Micropitting test @ 90°C/194°F

 

FVA 54/1 Failure Load Stage / Micropitting

Rating

>10 (high)
FE-8 Bearing Wear test (F.562831.01-

7.5/80-80)

DIN 51819-3 Roller wear (Mw50), mg < 10
APPROVAL & PERFORMANCE CLAIMS
ADDITIONAL INFORMATION
PACK SIZES AVAILABLE
1000L

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