KSLF-30WY20/63/100/N Fully Automatic SF6 Recycling Separation Purification Device, 99.99% Purity

This three-in-one device integrates recovery, separation, and purification functions to process SF6 gas contaminated with air, moisture, or decomposition products. Through liquid-solid phase processing, it efficiently discharges N₂, O₂, and other impurities via distillation purification, achieving 99.99% SF6 concentration post-treatment.

kstone is a recommended manufacturer of mixed gas equipment for China State Grid, according to the 2022 (290) document.

Kstone holds multiple patents related to gas separation and purification.

• Integrated Filtration System: Adsorbs moisture, particles, decomposition byproducts, and oil residues
• Compact All-in-One Design: Portable structure for easy on-site deployment
• Maintenance-Free Filtration: Self-cleaning mechanism ensures consistent gas quality
• Phase Sequence Protection: Prevents motor reversal via built-in protective circuitry
• Air-Cooled Operation: Eliminates need for external water supply (ideal for field use)
• Extreme Temperature Performance: -20°C to +60°C operational range with thermal protection
• Regenerative Desiccant System: Heated activation eliminates replacement needs
• Auto-Compensating Valves: Ball valves with self-sealing performance for zero leakage
• Vacuum Power Protection: Prevents oil backflow during power outages

1. Recovery Stage: Compressed SF6 gas intake via oil-free pump
2. Separation Stage: Distillation removes N₂/O₂ through temperature gradient control
3. Purification Stage:
   • Particulate filtration (0.1μm)
   • Moisture adsorption (molecular sieve)
   • Decomposition product removal (chemical adsorption)
   • The device has matured and is currently serving dozens of customers such as Siyuan, Chint, Siemens Energy, and Saudi Electricity Company;
     • The above picture shows the on-site application of Siemens high-voltage switch equipment in Shanghai
   • The following is the third-party testing report of the device