Oil purification system HZLY-300A

for industrial applicationsfor vacuum pumps

The Huazheng HZLY vacuum oil dehydration cleaning plant is an industrial transformer oil purifier designed to remove moisture, dissolved gases and solid contaminants from insulating oils to restore dielectric strength and insulation performance. It is built for continuous automated operation and is suitable for transformer oil, capacitor oil and freezer/compressor oil in high-voltage applications.
Main functions

• Removes free and dissolved water, dissolved gases and mechanical impurities from insulating oils.
• Improves oil purity and dielectric strength to protect transformer performance and extend service life.
• Applicable to oil treatment for 500 kV super‑voltage equipment and 220 kV transformers; also suitable for capacitor oil and other industrial oils.

Technical features

• Huazheng horizontal double vacuum separation technology doubles evaporation area for efficient vacuum dehydration and degassing.
• Coalescing oil spray separator for thorough gas and droplet removal from oil.
• American fine filter element with filtration fineness 5 μm, β ≥ 1000 for effective particulate removal.
• Low-noise, long-life oil transport system designed for reliable continuous operation.
• American thermal radiation heating method with constant temperature control for stable processing.
• Float valve and photoelectric oil level control to reduce manual supervision.
• French de‑foaming technique to prevent oil leakage and foam-related issues.
• Digital PLC control for automated, programmable operation.
• Major electrical components imported to ensure a safe and reliable control system.

Additional product information

• Designed for ease of use and maintenance with an operator-friendly interface and durable construction.
• Compact and efficient layout enables straightforward integration into existing transformer systems and reduces downtime.
• Each unit is factory-tested to meet industry quality standards.

Specifications / technical data

• Series / model line: HZLY series (horizontal double-stage vacuum oil purifier).
• Filtration element fineness: 5 μm (American fine filter), β ≥ 1000.
• Functions: dehydration (remove free & dissolved water), degassing, particulate removal.
• Heating method: thermal radiation with constant temperature control.
• Vacuum separation: horizontal double vacuum separation; coalescing oil spray separator.
• Control: PLC digital automatic control; float valve & photoelectric oil level control.
• Anti‑foaming: French de‑foaming technique.
• Applicable oils: transformer oil, capacitor oil, freezer/compressor oil.
• Application voltage range: suitable for 220 kV transformers and 500 kV super‑voltage equipment.
• Design: low‑noise oil transport system, durable construction for long‑term operation.