SF6 service carts

The highest degree of performance and efficiency are the most important criteria for your investment decisions when purchasing SF6 service carts. But how can you objectively justify your decision process by comparable performance times?

Previously, the nominal output of pumps and compressors was frequently compared to obtain a scale based on technical data. But that is a poor comparison, since a whole SF6 service cart is greater than the sum of its parts. The efficient functional interaction of all components over a real time period is the critical criterion.

DILO identified this lack from the customer’s point of view. This is why DILO, in addition to equipment safety, had the pe

rformance data of its SF6 service carts approved by TÜV SÜD.

Under the supervision of an expert from TÜV SÜD, the following SF6 service carts (representing the entire product range) were tested:
B143R11 – Mini Series
L030R01 – Piccolo Series
B057R03 – Compact Series
L057R01 – Economy Series

L170R01 – Mega Series


Micro Series

B160R92

This unit of the Micro series has been constructed in such a way that all functions can be carried out fully automated:

– Recovery and storage of SF6 in an internal or external storage vessel with automatic switch-off when reaching the adjustable final vacuum.

– Automatic purification of the SF6 gas during the recovery and filling process.

– Filling via pressure reducer by overflowing or by means of the compressor (automatic switchover) from an internal or external storage vessel with automatic switch-off when reaching the adjustable filling pressure.

– Evacuation of air with automatic switch-off when reaching the adjustable final vacuum.

The device has been specially designed for very small gas quantities and is ideally suited for applications, such as SF6 gas handling on medical devices (MRI Scanners) or electron microscopes.

Unit for SF6 recovery on MRI equipment and electron microscopes

O

ther features:

  • Device for gaseous storage of SF6 gas
  • Final vacuum 3 mbar
  • Internal storage tank (capacity: 2 l)
  • Menu Navigation via the 5.7″ coloured touch screen

Mini Series as portable version with individual components

The Mini Series is perfectly suited for gas handling of small gas compartments and gas reclaiming to < 5 mbar. This series even exceeds the IEC directives which are in effect and can compete with the more powerful series. We recommend using this series for small gas quantities.

Oilfree compressors allow gas handling without contamination by oil residues. The handy Mini Series stores the gas in liquid form and consists of the following individual components which can be assembled as complete unit:


Prefilter unit (pe 10 bar)

B077R11

For adsorption of moisture, solid and gaseous decomposition products.


Portable vacuum pump unit (10 m³/h, < 1 mbar)

B078R06

For evacuation of air


Vacuum compressor unit (3,3 m³/h)

B093R30

For recovery of SF6 gas down to 5 mbar in conjunction with the compressor


Compressor unit (1,6 m³/h)

B095R12

For liquid SF6 storage


Operating panel for Mini Series

B132R01

For easy handling of individual components
For more detailed information please refer to our data sheet.


DILO modular Mini Series

Small service cart

B143R11

The compact and mobile unit meets all requirements for efficient gas handling in the medium voltage range. Compact design and ergonomic aspects have been a guideline for its construction. Compared with the large devices – all necessary functions are integrated including gas purification via dry filter and particle filters and gas storage in liquid form.

The gas is recovered to a final vacuum of < 5 mbar and thus outranges the ICE directives by far. The integrated dry running compressors prevent the SF6 gas from being contamination by oil. All values for the gas recovery, evacuation and filling process are displayed on the panel.

SF6 gas reclaimer B143R11

Other features:

  • Device for liquid storage of SF6 gas
  • SF6 gas recovery down to < 5 mbar
  • Semi-automatic control and 2.8″ operating panel
  • Digital weighing scales for SF6 bottles
  • Residual gas recovery down to 5 mbar during filter change
  • Reduction to transport pressure as integrated special function

Piccolo Series

L030R01

The L030 model of the Piccolo Series has been specially designed for modern switchgear with small gas compartments. Due to its compact construction this device fits conveniently onto a euro pallet for transport and is easily manoeuvrable even in the very narrow passage ways of gas insulated switchgear.

The L030 maintenance device is equipped with a compact but high capacity compressor which enables SF6 reclaiming up to < 5 mbar – a value outperforming current IEC regulations by far. A smart device for “smart grids”.

DILO Piccolo service cart

Other features:

  • Device for liquid storage of SF6 gas
  • SF6 gas recovery down to < 5 mbar
  • Semi-automatic control and 3.6″ operating Panel
  • Optional iPad remote control
  • Reversing switch for direction of rotation
  • Digital weighing scales for SF6 bottles
  • Residual gas recovery down to 1 mbar during filter change
  • Reduction to transport pressure as integrated special function
Optional ipad control

Compact Series

B057R.. / B058R..

This robust series comprises several versions allowing gaseous and liquid SF6 storage. SF6 gas can be recovered to a final vacuum of < 5 mbar or 1 mbar and exceeds IEC 62271-4 regulations by far.

All devices of this type series are equipped with a semi-automatic control and are easy to operate: The functions are selected by means of a 3-way ball valve and a selector switch. The pressure units (bar/mbar, kPa or psi/torr) can be chosen on the operating panel.

The Compact Series is the perfect choice in case a robust and user-friendly device is required for maintenance works on high voltage switchgear.

Other features:

  • Devices for storage in gaseous or liquid form
  • SF6 gas recovery down to < 5 mbar or 1 mbar
  • Semi-automatic control and 3.6″ operating panel
  • Residual gas recovery down to 5 or 1 mbar during filter change
  • Reduction to transport pressure as integrated special function
  • All versions are available with tanks which can be assembled under the device with CE marking also available with SQL and ASME approval
DILO SF6 maintenance equipment for gaseous or liquid SF6 storage
B058R03
B057R17