Professional gas handling

Recovery "state-of-the-art"

Professional gas handling and gas recovery equally combines environmental protection and economic efficiency. DILO service carts make the gas handling simple and efficient encompassing the following functions:

• Gas recovery
  The gas is recovered from the gas compartment of the switchgear down to the desired final vacuum (mostly 1 mbar).
   
• Gas purification and drying
  When recovering and filling gas compartments the gas is automatically led in the service cart through dry and particles filters which retain decomposition products, moisture and solid particles effectively. For the reuse of gas the limit values in accordance with IEC 60480 are to be observed.
   
• Storage of gas
  When recovering from the circuit breaker the gas is stored in gaseous or liquid form by means of a compressor which compresses the gas.
   
• Evacuation of air or nitrogen
  Before filling with gas the gas compartments must be evacuated in order to avoid mixing with air. Therefore it is evacuated to < 1 mbar with an integrated vacuum pump.
   
• Filling the gas compartments with gas
  The purified gas is returned into the gas compartment with overpressure or by means of a compressor to the desired operating pressure. The stored gas in liquid form is converted into gaseous form via the evaporator installed in the maintenance device.