Trinity Engineering Whitepaper
Executive Summary & Key Takeaways
- Centrifuges only remove free water (sp. gr. > 1.0) and cannot break tight emulsions or remove dissolved moisture.
- Vacuum Dehydration operates at low temperatures (55°C - 65°C) and high vacuum (0.8 - 0.95 bar) to extract 100% free and 95% dissolved moisture.
- Consistently achieves NAS 1638 Class 4 / ISO 4406: 14/12/9 cleanliness in power generation turbines.
1. The 3 States of Water in Industrial Oils
Water exists in mineral, synthetic, and hydraulic oils in three distinct states:
- Free Water: Discrete droplets suspended in oil that settle by gravity over time.
- Emulsified Water: Micro-droplets stabilized by surfactants, giving the oil a milky cloudy haze.
- Dissolved Water: Individual water molecules bonded to oil hydrocarbon chains (oil looks completely clear despite containing 200 - 800 ppm water).
2. Technological Comparison: Vacuum Purifier vs Centrifuge
| Performance Metric | High-Speed Centrifugal Separator | Trinity Vacuum Dehydration Unit |
|---|---|---|
| Free Water Removal | 90% - 95% efficiency | 100% efficiency |
| Emulsified Water Removal | Poor (requires chemical deemulsifiers) | 100% efficiency (flash evaporation) |
| Dissolved Water Removal | 0% (cannot remove dissolved moisture) | Removes down to < 30 ppm |
| Entrained Gas / Air Removal | No | Yes (down to < 0.5% volume) |
| Maintenance & Moving Parts | High (high-speed rotor, frequent bowl cleaning) | Low (static column, rotary claw vacuum pump) |
3. Flash Evaporation Vacuum Column Dynamics
Inside the Trinity Vacuum Purifier, oil is pre-filtered and passed into an engineered vacuum chamber containing high-surface-area dispersion coalescing elements. Under 600 mmHg vacuum, the boiling point of water drops from 100°C to 50°C. Water and entrained gases instantly vaporize without thermally stressing or degrading the oil's vital anti-wear additive package.