Description:
Hydraunycoil FH 2 is a synthetic hydraulic fluid composed of poly-alpha-olefins and diesters. It features a viscosity of 15 cSt at 40°C and a viscosity index of 125. The fluid includes anti-corrosion and anti-wear additives and operates effectively within a temperature range of -40°C to +205°C without air intake. It is designed to replace petroleum-based oils like MIL-PRF-5606/H-515, offering reduced fire hazards due to its high flash point, fire point, and auto-ignition temperature, along with minimized evaporation loss.

Applications:
The fluid is suitable for use in actuators and flap-control mechanisms, landing gear shock struts of military and commercial aircraft, helicopter and military hydraulic systems, and hydraulic servo-controlled systems of missiles.

Specifications and Test Results:

• Density at 20°C: 0.854 (ASTM D 4052)
• Appearance: Limpid red oil
• Kinematic Viscosity: At 205°C: 1.10 mm²/s, At 100°C: 3.51 mm²/s, At 40°C: 14.25 mm²/s, At -40°C: 2078 mm²/s (ASTM D 445)
• Low Temperature Stability: Pass (FED-STD-791-3458)
• Flash Point: 220°C (ASTM D 92)
• Fire Point: 250°C (ASTM D 92)
• Auto-ignition Temperature: 380°C (ASTM E 659)
• Pour Point: -66°C (ASTM D 97)
• Total Acid Number: 0.03 mg KOH/g (ASTM D 664)
• Evaporation Loss: 18.8% (ASTM D 972)
• Foaming Test: 7/0 cm³/cm³ at 24°C (ASTM D 892)
• Steel on Steel Wear: Scar diameter after 1h at 9.8 N: 0.10 mm, 98 N: 0.24 mm, 392 N: 0.55 mm (ASTM D 4172)
• Solid Particles Content: 5-15 µm: 2750, 16-25 µm: 150, 26-50 µm: 40, 51-100 µm: 10, >100 µm: 1 (HIAC automatic counter)
• Elastomer NBR-L Compatibility: 20% volume change (FTM-S-791-3603)
• Water Content: 56 mg/kg (ASTM D 1533)

Notes:
The values provided are typical and do not constitute a contractual commitment. Sales specifications are available upon request. This technical data sheet supersedes previous editions.