HYDREX™ MV 46 – multi-grade hydraulic oil for extreme temperatures and high efficiency

HYDREX™ MV 46 is a premium multi-grade hydraulic fluid designed for mobile and stationary systems exposed to wide temperature variations. It provides excellent low-temperature performance, fast response and reliable wear protection.

Its advanced formulation delivers outstanding thermal stability, extended service life and high energy efficiency. HYDREX MV 46 minimizes deposits, improves valve cleanliness and protects hydraulic pumps effectively.

Product Advantages
• Multi-grade hydraulic oil for wide temperature ranges
• Excellent low-temperature performance (start to –31 °C)
• Strong wear protection
• Superior oxidation and thermal stability
• Excellent demulsibility and hydrolytic stability
• Very good air release and foam resistance
• Extended oil drain intervals
• Ideal for systems exposed to temperature extremes

Typical Applications
• Mobile hydraulic systems
• Industrial hydraulic systems
• High-pressure pumps and valves
• CNC machines, presses, machine tools
• Year-round operation in cold and warm climates

Specifications/Approvals

Specifications / Approvals:
DIN 51524‑3 HVLP
ISO 11158 HV
Eaton Vickers 35VQ25
Denison HF‑0, HF‑1, HF‑2
Bosch Rexroth RDE 90245
Fives Cincinnati P‑70
JCMAS HK (Komatsu HPV35+35)

Typical Properties (HYDREX MV 46):
Start temperature: –31 °C
Operating temp. mobile: –13 to +86 °C
Operating temp. industrial: –13 to +76 °C
Density @ 15 °C: 0.853 kg/l
Viscosity @ 40 °C: 45.4 mm²/s
Viscosity @ 100 °C: 8.2 mm²/s
Viscosity index: 158
Flash point (COC): 247 °C
Pour point: –48 °C
Water separation (54 °C): 40‑40‑0 (20 min)
Air release (50 °C): 2.0 min
Oxidation stability (D943): 10,000+ h
Dielectric strength: 52 kV
FZG A/8.3/90: > 12
Denison T6H20C: Pass
Vickers 35VQ25: Pass
Biodegradability: > 50 % (OECD 301B)
EC50 algae: > 9,000 mg/l
EC50 daphnia: > 10,000 mg/l
LC50 trout: > 1,000 mg/l

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Datasheets