I. Product Positioning & Development Background

Teli 15 Aviation Hydraulic Oil, developed by Shenyang Teli Petrochemical Co., Ltd. (formerly a Sinopec joint venture), is a next-generation product designed for high-precision aviation hydraulic systems, aiming to replace older models such as Type 10 (Red Oil) and Type 12 (Blue Oil). Positioned as a dual military-civilian high-performance hydraulic fluid, it complies with Chinese Military Standard GJB 1177(A)-2013 and has been validated by military entities like AECC and AVIC. Its performance aligns with the U.S. MIL-H-5606E standard.

• Technological Advancements:

• Compared to Type 10, Type 15 improves base oil purity through deep refining and dewaxing processes and enhances low-temperature performance and oxidation resistance via a synthetic oil compound formula.

• Cost Efficiency: As a privately developed product, it offers a 10–15% lower procurement cost than Kunlun 15, breaking state-owned enterprise monopolies and gaining traction in civil-military integration projects.

II. Key Performance & Technical Parameters

1. Extreme Environment Adaptability

• Low-Temperature Performance:

• Pour point ≤-65°C (some batches tested at -74°C), stable operation from -65°C to 125°C.

• Kinematic viscosity: ≥15 mm²/s at 50°C (tested 13.2–20 mm²/s), ≤2500 mm²/s at -54°C, ensuring rapid response in frigid conditions.

• High-Temperature Stability:

• Flash point ≥92°C (open cup), excellent volatility resistance.

• Evaporation loss (71°C, 6h) ≤20%, minimizing oil loss in prolonged high-temperature use.

2. Chemical & Physical Properties

3. Functional Enhancements

• Oxidation Resistance: Contains 264-type antioxidants, acid value change rate ≤0.05 mgKOH/g/year, extending service life by 30%.

• Anti-Wear Performance: Wear scar diameter ≤1.0 mm (75°C, 392N load), reducing titanium alloy component wear (friction coefficient drops from 0.79 to 0.32).

• Cleanliness: Zero mechanical impurities, moisture ≤36 ppm, complying with AS4059 Class 6, suitable for precision servo valves.

III. Applications & Case Studies

1. Aviation Sector

• Military:

• Fighter jet landing gear, speed brakes, and wing control systems (e.g., PLAAF J-10C upgrades).

• Helicopter main hydraulic pumps (validated in AVIC Z-20).

• Civil:

• Ground equipment in polar-region airports (e.g., Xinjiang’s Korla oilfield equipment at -65°C).

• General aviation hydraulic transmission systems.

2. Industrial Applications

• Polar Expeditions: Hydraulic excavators at Antarctic Kunlun Station.

• High-Pressure Machinery: Dump truck transmissions, fire truck telescopic arms (12% hydraulic efficiency improvement in Shandong trials).

• Oilfield Equipment: Double-acting hydraulic pumps operating continuously at -50°C.

IV. Competitive Analysis

V. Usage Guidelines

1. Compatibility:

• Do not mix with mineral-based oils (e.g., Type 10/12) to avoid filter clogging.

• Compatible with NBR rubber (swelling rate 19–30%); avoid fluorinated rubber.

2. Handling:

• Use dedicated filtration (≤10μm) during refilling to prevent contamination.

• Consume opened containers within 72 hours; store residues under nitrogen.

3. Maintenance:

• Routine testing: Acid value/viscosity every 6 months; moisture monthly.

• Replacement criteria: Acid value >0.25 mgKOH/g or viscosity change >15%.

VI. R&D & Production

• R&D: Joint research with Beijing Institute of Aeronautical Materials on titanium alloy wear resistance.

• Production:

• Molecular distillation for base oil purification (±1°C pour point control).

• Nitrogen-protected filling process (cleanliness NAS Class 6).

• Quality Control: ISO 9001 certified, 5-year batch traceability.

VII. Market Positioning

• Military: Replacing Kunlun 15 in non-mandatory state procurement scenarios (e.g., PLAAF helicopter fleet annual demand: 200+ tons).

• Civil Markets:

• 35% market share in polar-region machinery (2024 data).

• Exported to Belt & Road countries (e.g., Russia’s Yakutsk oilfields).

• Competitive Edge: One of China’s only two private enterprises certified to MIL-H-5606E, challenging foreign monopolies.

Summary & Recommendations

Teli 15 excels in extreme low-temperature adaptability, high cleanliness, and cost efficiency, making it ideal for:

• Preferred Scenarios:

1. Ultra-low temperatures (<-60°C) or high-precision systems (e.g., electro-hydraulic servo valves).

2. Cost-sensitive civil-military projects.

3. Titanium alloy lubrication (60% lower friction coefficient).

• Cautionary Scenarios:

1. Mandatory state-brand military procurement.

2. Prolonged high-temperature use (>120°C; switch to Teli 20 synthetic oil).