An SF6 gas drum is a type of industrial gas drum designed for the bulk storage and transportation of
sulfur hexafluoride (SF₆) gas. Compared with standard SF6 gas cylinders, gas drums offer higher filling capacity
and are suitable for customers with stable and continuous SF6 gas consumption.
Blunet is a professional supplier of SF6 gas and SF6 gas drums, providing reliable bulk packaging solutions
for electrical and industrial applications worldwide.
SF6 gas is widely used as an insulating and arc-quenching medium in high-voltage electrical equipment, including
gas-insulated switchgear (GIS), circuit breakers, and power transmission systems. For these applications,
secure and stable bulk packaging is essential to maintain gas purity, operational safety, and handling efficiency.
Why Choose an SF₆ Gas Drum?
For medium- to high-volume SF₆ gas users, gas drums provide clear advantages over standard cylinders:
- Higher capacity, reducing cylinder replacement frequency
- Improved handling efficiency for industrial and utility operations
- Stable gas supply for equipment manufacturing, installation, and maintenance
- Lower overall logistics and handling costs compared with multiple small cylinders
An SF₆ gas drum offers an effective balance between conventional cylinders and large on-site bulk storage systems.
Key Features
- High-Quality Construction: 12.5 μm inner wall roughness ensures smooth gas flow and reduced contamination. Equipped with a 304 stainless steel end plug and a 316L stainless steel valve for excellent corrosion resistance.
- High-Pressure Performance: Designed for a maximum pressure of 16.6 MPa with a working pressure of 15 MPa, ensuring safe and reliable SF6 gas containment.
- Wide Temperature Range: Operates reliably from −40 °C to 60 °C, suitable for demanding industrial environments.
- Ultra-Low Moisture Content: Water content ≤10.0 ppm helps maintain gas purity and prevents harmful by-product formation.
- SF6 Gas Compatible: Specifically engineered for SF6 filling, storage, and transport, widely used in electrical insulation and arc-quenching applications.
SF6 Gas Drum – Technical Specifications
Blunet SF6 Gas Drums are engineered for safe and reliable bulk storage and transportation of high-purity sulfur hexafluoride (SF6) gas.
Designed for industrial and electrical applications, each drum ensures safety, durability, and consistent gas quality.
| Parameter | Specification |
|---|---|
| Vessel Categories | 3 |
| Filling Media | SF6 |
| Net Weight per Cylinder | 535 kg |
| Design Wall Thickness | 15 mm |
| Frame Weight | 145 kg |
| Cylinder Inner Wall Roughness | 12.5 μm |
| Maximum Allowable Leak Rate | 1.0 × 10⁻⁵ Pa·m³/s |
| Surface Finish / Painting Color | Silver Grey |
| Design Pressure | 16.6 MPa |
| Working Pressure | 15 MPa |
| Design Temperature Range | -40 ~ 60 ºC |
| Hydraulic Test Pressure | 27.7 MPa |
| Nominal Capacity per Cylinder | 450 L |
| Water Content | ≤10 ppm |
| End Plug Material | 304 Stainless Steel |
| Valve Material | 316L Stainless Steel |
Design and Construction
Blunet’s SF₆ gas drums are manufactured from high-strength steel and designed in accordance with applicable standards
for industrial gas drums. Each drum is engineered to safely contain high-purity sulfur hexafluoride under
controlled pressure conditions.
- Robust steel shell for long-term durability
- Valves compatible with SF₆ gas filling and recovery systems
- Secure sealing design to minimize leakage risk
- Surface treatment suitable for long-distance transport and storage
Each SF₆ gas drum is inspected to ensure pressure integrity, cleanliness, and export readiness.
Typical Applications
SF₆ gas drums are widely used in:
- High-voltage switchgear and GIS manufacturing
- Power utility installation and maintenance projects
- Electrical equipment testing and commissioning
- SF₆ gas handling, filling, and recovery operations
For customers who require reliable SF₆ supply but do not need a full bulk tank system,
gas drums provide a practical and economical solution.
Packaging Options and Supply Capability
Blunet supplies SF₆ gas in multiple packaging formats to meet different usage requirements:
- SF₆ gas cylinders for low-volume or intermittent use
- SF₆ gas drums for medium-volume industrial applications
- SF₆ jumbo cylinders for larger batch consumption
- SF₆ microbulk tanks for on-site storage and continuous supply
Our technical team can assist in selecting the most suitable packaging option based on consumption volume
and site conditions.
Quality, Safety, and Export Support
All SF₆ gas drums supplied by Blunet are clearly identified and prepared for international transportation.
Technical documentation and handling guidance are available to support safe storage, transport,
and regulatory compliance for sulfur hexafluoride gas.
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