SF 6 Gas Handling

Efficient, cost-effective onsite service for SF6 gas insulated circuit breakers

Wismer & Rawlings field teams are trained and equipped with state-of-the-art equipment and techniques for the installation, commissioning, maintenance and service of utility and industrial-grade SF6 gas insulated circuit breakers.

SF6 gas (sulphur hexafluoride) is used in many utility and industrial high voltage (HV) and medium voltage (MV) circuit breakers. SF6 handling requires specialized training and equipment, and our DILO System SF6 gas cart and gas analyzers are recognized as the best in the industry.

SF6 services include

  • Onsite SF6 testing (for purity, moisture content, and by-products).

  • Gas filling for new equipment

  • Gas recovery, vacuum and refilling of SF6 gas, for maintenance and decommissioning

Our teams are experienced with HV and MV equipment from all major manufacturers, including Alstom, Siemens, ABB, Meppi, Hico, and Mitsubishi