

Vapour Phase Drying Equipment is a highefficiency solution designed for the drying of ultrahigh voltage transformers, mutual inductors, and capacitor bushings. Using solvent vapour as the heat transfer medium, this system ensures uniform heat distribution and efficient moisture removal. It features a short drying cycle, high drying efficiency, and the ability to handle secondary products, making it ideal for transformer insulation and other highvoltage components. Additionally, independent distillation can be achieved with an external evaporator, and complete production process records ensure traceability.
This industrial Vapour Phase Drying System is optimized for:
| Model | Evaporator Power | Main Condenser Power | Drying Tank |
| VPD250 | 250 kW | 200 kW | Square (-0.1 – 0 Mpa) horizontal Structure, Size Customized According To Customer Needs |
| VPD300 | 300 kW | 250 kW | |
| VPD400 | 400 kW | 300 kW | |
| VPD500 | 500 kW | 400 kW | |
| VPD600 | 600 kW | 500 kW |
Q1. What is Vapour Phase Drying Equipment used for?
A1. It is used for vacuum drying transformer windings and insulation by exposing them to hot vapour phase heat under controlled pressure, removing moisture and optimizing performance.
Q2. How does the Vapour Phase Drying System improve transformer insulation quality?
A2. The vapour mediates heat transfer more efficiently than hotair systems, enabling deep penetration and superior moisture removal.
Q3. Can the system be customized?
A3. Yes — tank sizes, vacuum configurations, and power modules are tailored to your transformer types and workflow.
Q4. What industries use this drying equipment?
A4. Power transformer manufacturers, HV component producers, electrical testing labs, and industrial OEMs.