The compact solution to recover, consolidate and transfer SF6 in small-volume equipment
SF6 handling equipment
AGTU
SF6 gas transfer unit
Designed for small volumes of SF6
The AGTU was created as a low-cost solution to recover, consolidate and transfer sulfur hexafluoride (SF6) in circuit breakers and small-volume gas equipment, up to 69 kV. It is the ideal tool for consolidating partially used cylinders into one, or for recovering left-over gas from higher-capacity carts.
Oil-less, direct-drive compressor
An oil-less, direct-drive compressor with a 1000:1 compression ratio reaches up to 34 bar of discharge pressure: enough to liquefy SF6 even at high ambient temperatures. The regulated inlet allows direct connection to high-pressure bottles, with no need to throttle the gas.
Main advantages
- Purifies, dries and filters the gas down to 0.1 microns on every recovery and re-pressurization.
- Colour-change moisture indicator to monitor the condition of the gas.
- Filters can be replaced without disconnecting tubing or using special tools.
- Automatic compressor shutoff once the maximum allowable pressure is reached.
- Rugged steel enclosure, suited to SF6 tanks, bottles or carts.
- Supplied with 3 m hoses and a power cable.
Applications and operation
Applications
- Recovery of SF6 gas to an optional auxiliary storage tank.
- Pressure-regulated recharging of SF6 gas to switchgear.
- Consolidation of partially used storage cylinders.
- Purification of SF6: removes particles, moisture and decomposition products.
How it works
A single unit handles the three basic operations of small-volume servicing: it recovers gas from the equipment down to a residual pressure of 100 mbar (optionally below 1 mbar with the XDS module), purifies and dries it as it passes through the filters, and transfers it again, or into another bottle, at a rate of up to 2 m³/h.
Options
- Additional XDS vacuum module, to bring residual recovery pressure below 1 mbar.
- Auxiliary external storage tank.
- Longer hoses and special supply voltages on request.
| AGTU — PERFORMANCE DATA | |
|---|---|
| Designed for | Circuit breakers and SF6 equipment up to 69 kV |
| SF6 transfer rate | Up to 1.2 CFM (2 m³/h) |
| Recovery | Down to 100 mbar; optionally below 1 mbar with XDS module |
| SF6 compressor | Oil-less, direct-drive, 1000:1 ratio; up to 34 bar discharge |
| Filtration | 0.1 micron on every recovery and re-pressurization cycle |
Performance data as per the manufacturer's current catalogue (2025).
| AGTU — TECHNICAL SPECIFICATIONS | |
|---|---|
| Type | Portable SF6 gas transfer unit |
| Enclosure | Rugged steel |
| Inlet | Regulated, for direct connection to high-pressure bottles |
| Moisture indicator | Colour-change |
| Safety shutoff | Automatic once maximum allowable pressure is reached |
| Hoses | 3 m, supplied with power cable |
| Power supply | 120 V single-phase, 60 Hz / 220 V single-phase, 50/60 Hz |
| Dimensions (H × W × D) | 510 × 410 × 635 mm |
| Weight | 34 kg |