More recovery and storage capacity on a two-wheel cart
SF6 handling equipment
AGRU-8
SF6 gas recovery unit
Recovery, purification, liquid storage and refilling of SF6 for large-capacity jobs.
Product description
Between the manual cart and the platform unit
The AGRU-8 was created for teams who have outgrown the capacity of manual carts but do not want the bulk or cost of a platformor trailer-mounted unit. It recovers, temporarily stores, conditions and returns SF6 from metal-clad switchgear, busbars and individual circuit breakers up to 256 kV, transferring gas at up to 51 kg/h, the fastest rate in its class.
Full service with a single valve
A single valve switches between the recovery, evacuation, purification and regulated refilling modes. The oil-less, direct-drive compressor, with a 1000:1 compression ratio and up to 69 bar, liquefies the SF6 for on-board storage, backed by a four-stage fan-cooled condenser that sustains liquefaction at high ambient temperatures.
Main features
- Purifies, dries and filters to 0.1 µm during recovery and re-pressurisation: the gas is cleaned twice on every routine.
- Filters can be replaced without disconnecting piping or using special tools.
- Colour-change moisture indicator to monitor the condition of the gas.
- Rack for three cylinders: up to 160 kg on board, or 300 kg with the optional tank.
- Auxiliary connection for external storage with no capacity limit.
- Supplied with 3 m hoses, a lifting eyebolt and a power cord.
Applications and options
Applications
- Recovery and purification of SF6 from circuit breakers, switchgear and busbars.
- Evacuation of air and moisture from the equipment before filling.
- Consolidation of partially used SF6 cylinders.
- Storage of the gas in liquid form on board or in external tanks.
- Regulated refilling of SF6 equipment.
- Removal of particles, moisture and decomposition by-products from the gas.
Options and upgrades
- PLC control with touchscreen and automatic or manual valve control.
- Stainless steel piping and hoses; DN-20 connections; 6 m hoses.
- Upgraded vacuum compressor: 99.9% recovery instead of 99.6%.
- Vacuum pump upgraded to 40 m³/h; 300 L on-board tank with scale.
- 300 W tank heater with thermostat at 52 °C; electronic scale.
- Special supply voltages on request.
Consumables
The dry (D-1), purification (P-1) and particulate (F-1) filters are replaced every 50 hours of compressor operation; the vacuum pump oil, available in 946 ml and 3780 ml containers, is checked at every start-up.
| AGRU-8 — PERFORMANCE DATA | |
|---|---|
| Designed for | Circuit breakers and switchgear up to 256 kV |
| SF6 transfer rate | Up to 51 kg/h |
| SF6 residual pressure | Below 1 mbar |
| Gas recovery | 99.6% as standard; 99.9% with the optional vacuum compressor |
| SF6 compressor | Oil-less, direct drive, 1000:1; up to 69 bar; 6.6 m³/h (60 Hz) |
| Vacuum compressor | Diaphragm type, 0.24 kW; 5 m³/h (60 Hz); ultimate vacuum 20 mbar; optional below 1 mbar |
| Vacuum pump | 25 m³/h below 1 mbar; optional 40 m³/h; blank-off pressure 0.08 mbar |
| Evacuation | Air and moisture from the switchgear, hoses and cart before filling |
| Filtration | Activated alumina (D1 and D2); 5x molecular sieve (P1); 0.1 µm particulate (F1) |
| On-board storage | 3 cylinders, up to 160 kg; optional 300 L tank (300 kg) |
| External storage | Auxiliary connection for cylinders and tanks rated at least 40 bar |
The gas is stored in liquid form at ambient temperature, up to 45.5 °C, without refrigeration. Performance data as per the manufacturer's current technical datasheet.
| AGRU-8 — TECHNICAL SPECIFICATIONS | |
|---|---|
| Type | Portable SF6 gas recovery unit on a two-wheel cart |
| Compressor | Three oil-less high-pressure single stages; 0.5 kW motor at 3450 rpm |
| Suction regulator | Brass body, 0-2 bar |
| Equalisation circuit | Allows the compressor to restart under high pressure |
| Check valves | Nine, brass |
| Condenser | High-efficiency, 4-stage, fan-cooled |
| Discharge pressure switch | Automatic cut-off on reaching the maximum allowable pressure |
| Vacuum pump | 1.1 kW motor, 1750 rpm; non-return, isolation, gas ballast and oil return |
| Maintenance | D-1, P-1 and F-1 filters every 50 h of compressor operation; pump oil checked at every start-up |
| Hoses | 3 m, with hook; 6 m and stainless steel braided options |
| Options | PLC with touchscreen; stainless steel; 300 W heater (52 °C); scale; DN-20 |
| Power supply | 220 V, single-phase, 50/60 Hz; other voltages on request |
| Dimensions (H × W × D) | 1900 × 1140 × 1470 mm |
| Weight | 432 kg |
| Mobility | Reinforced two-wheel cart, with lifting eyebolt |