FLN36-12 SF6 Shell‌ The FLN36-12 SF6 Shell is a gas-insulated enclosure designed for medium-voltage (12 kV) switchgear, utilizing sulfur hexafluoride (SF6) for superior insulation and arc-quenching. Its welded aluminum alloy or stainless-steel structure ensures hermetic sealing (leakage rate <0.5%/year) and corrosion resistance‌. Key features include:  Compact design‌: Reduces footprint by 40% versus air-insulated systems, ideal for urban substations‌. Environmental resilience‌: Operates in -40°C to 40°C, with IP67-rated protection against dust/moisture‌. Safety‌: Integrated pressure relief valves and gas density monitoring to prevent SF6 leakage‌. Applications span renewable energy grids, industrial plants, and coastal installations. Compliant with IEC 62271-203 and GB/T 11022 standards, modern variants incorporate IoT sensors for real-time gas pressure/temperature tracking‌. Eco-friendly designs feature SF6 recycling ports and low-GWP alternatives to align with climate regulations‌.