Transformer Oil — Naphthenic Uninhibited

£1,350.00

This Transformer Oil — Naphthenic Uninhibited is a high-purity, oxidation-stable dielectric fluid engineered for superior heat transfer and electrical insulation in power transformers, switches, and tap changers. Its low pour point and excellent solubility for existing sediments enable reliable performance even in cold-start and moisture-prone environments.

Competitive Advantage Spotlight
Unlike inhibited oils that can form acidic byproducts under stress, this uninhibited naphthenic grade offers exceptional gassing tendency control and natural sludge solubility, extending transformer service life while simplifying maintenance and oil reclamation.

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

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