Transformer Oil — Naphthenic Uninhibited

Description

1. Product Overview

This is a refined, uninhibited naphthenic insulating oil derived from selected crude stocks, formulated specifically for liquid-filled power and distribution transformers. Its primary industrial use is as a dielectric coolant and electrical insulator in medium- and high-voltage transformers. The key value proposition is exceptional low-temperature flow performance and high oxidation stability without additives, offering greater flexibility for field retrofitting and inhibitor management. Strategically, it meets the rising demand for reliable, specification-flexible transformer fluids in aging grid infrastructure and renewable energy integration projects.

2. Key Specifications & Technical Characteristics

• Chemical composition: Highly saturated naphthenic hydrocarbon oil, <0.1% aromatic content, no added oxidation inhibitors (uninhibited)

• Purity level: >99.5% hydrocarbon purity; meets IEC 60296 (uninhibited grade) and ASTM D3487 Type I

• Physical characteristics: Clear, bright, free of suspended matter; typical density 0.87–0.89 g/cm³ @ 20°C; kinematic viscosity ≤12 cSt @ 40°C; pour point ≤ –45°C

• Packaging options: Bulk ISO tanks, flexitanks (20’ container), 200L new steel drums, IBC totes (1,000L)

• Shelf life: 36 months in factory-sealed containers under dry, ambient storage; moisture level <30 ppm upon delivery

3. Core Industrial Applications

• Primary industries: Electric utilities, power transformer manufacturers, wind farm substations, rail traction power systems, industrial heavy electrical equipment

• Operational use cases: Dielectric and cooling medium in new distribution transformers (up to 72.5 kV), retrofill oil for aging transformers, spare fluid for fleet maintenance, mixing with inhibited oils in field repairs

• Performance advantages: Superior sludge inhibition during long-term aging (no inhibitor depletion risk); lower pour point outperforms paraffinic oils in cold climates; faster degassing and moisture release vs. inhibited grades

• Cost advantage: Lower initial cost than inhibited oils; simplifies inventory management for sites using both uninhibited and inhibited fluids

4. Competitive Advantages

• Quality consistency: Batch-to-batch stability certified via ISO 17025 lab analysis; every shipment includes certificate of analysis (COA) for breakdown voltage, dissipation factor, and furanic content

• Supply reliability: Dual-source refining from North American and Middle Eastern naphthenic crudes; dedicated buffer stock (5,000+ MT) in three regional hubs

• Logistics capability: 48-hour dispatch from regional warehouses; export-ready documentation (BL, COO, packing list, MSDS) for 120+ countries

• Commercial flexibility: Pricing indexed to ICE gasoil with volume-based band discounts; LC, DP, and open account terms for qualified buyers

• Sustainability: Recyclable via re-refining; reduced carbon footprint vs. paraffinic alternatives due to lower viscosity (less pumping energy)

5. Commercial & Supply Information

• Minimum order quantity (MOQ): Bulk — 20 MT

• Loading capacity per 20’ container (flexitank): 20 MT net weight