Application area

  • Medium- and low-voltage switchgear (10 kV – 40.5 kV) inflatable cabinets
  • High-voltage porcelain-column circuit-breakers (72.5 kV – 220 kV)
  • Ultra-high-voltage porcelain-column breakers (up to 500 kV)
  • 110 kV SF₆-insulated GIS and compact substations

Applicable standards

  • DL/T 662 – Specification for SF₆ gas refilling and recovery devices
  • IEC 62271-4 High-voltage switchgear and control gear – Part 4: Handling procedures for SF6 and its mixtures

Features

  • Complete SF₆ handling: recovery, liquefaction, storage and refilling into switchgear or pressure vessels
  • Gas treatment: in-line filtration (≤ 1 µm) and drying to safeguard purity
  • High-performance pumping: oil-free compressor (4 m³/h standard), vacuum pump (16 m³/h, final vacuum < 5 mbar), recovery rate 10 – 12 kg/h
  • Integrated control: touch-screen interface with digital vacuum gauge or sensor
  • Efficiency & safety: negative-pressure recovery mode plus anti-return valve on vacuum pump to prevent oil backflow
  • Adaptable for extremes: optional cooling methods for various ambient temperatures
  • Ease of use: optional self-loading device for automated cylinder filling

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