The KDQH-33 is a mobile SF6 gas recovery and processing unit, designed for comprehensive management of SF6 gas in high-voltage electrical equipment. It integrates vacuum pumping, gas recovery, purification, charging, and storage functions into a single hand-pushed cart. Utilizing a high-efficiency vacuum pump (60m³/h) and a refrigeration liquefaction system, it can recover SF6 gas into liquid form for storage, achieving a final recovery pressure of ≤53kPa. The system features built-in purification filters to remove moisture, oil, and particulates, ensuring recycled gas purity ≥99.9%. With a compact design, high pumping speed, and reliable performance, it is an essential tool for power utilities and SF6 equipment manufacturers.

• Integrated design combines recovery, evacuation, charging, purification, and storage in one mobile unit.
• Refrigeration liquefaction technology stores recovered SF6 as liquid, maximizing storage capacity (150kg nominal).
• High vacuum pumping speed (60m³/h) achieves ultimate vacuum ≤10Pa for efficient equipment preparation.
• Built-in purification system removes moisture, oil, and particulates, ensuring SF6 purity ≥99.9%.
• Compact hand-pushed mobile design with locking casters for easy on-site deployment.
• Built-in temperature and humidity compensation ensures accurate measurements in varying environments.
• Multiple safety protections: over-pressure, over-current, and power failure protection for reliable operation.
• Built-in 150L refrigerated storage tank for liquid SF6 with high-pressure resistance (≤4MPa).
• Automatic electric heating and regeneration for drying filters, reducing maintenance requirements.
• User-friendly control panel with digital gauges and valves for intuitive operation.

• Model: KDQH-33 (System based on KDQH-66 platform)
• Packaging Dimensions: 1550mm × 900mm × 1300mm (L×W×H), Gross Weight: 510kg
• Ultimate Vacuum: ≤10Pa, Vacuum Stability: <400Pa rise in 24h at 133Pa
• Vacuum Pump Speed: 60m³/h (double-stage vacuum pump)
• SF6 Compressor Speed: 12m³/h (French Melyor compressor)
• Recovery Pressure: Initial ≤0.8MPa, Final ≤53kPa; Recovery time: <2.5h for 1m³ at 0.8MPa
• Charging Pressure: Initial ≤133Pa, Final 0.8MPa; Charging time: <0.8h for 1m³ at 133Pa
• Gas Storage: 150L tank, Nominal liquid storage: 150kg, Max pressure: 3.8MPa
• Purification Performance: Removes moisture to ≤60PPM/V, oil to ≤10PPM/V; SF6 purity ≥99.9%
• Power Supply: AC380V (three-phase five-wire, 50Hz), Phase sequence auto-conversion
• Operating Environment: Temp -10°C~+40°C, Noise ≤75dB(A), Leakage rate <1%/year
• MTBF: >1000h continuous operation, >5000h accumulated operation
• Cooling Method: Air-cooled
• Storage Tank Material: Carbon steel