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SF6 Leak Management

Online Repair for SF6 Leaking Flange

SF6 Gas Leak Repair with EMT

Industry: Power T&D

Application: SF6 Leaking Flange

Customer: UK Electric Utility

Date: December 2021


Solution: REFLANGEKiT® SF6 leak sealing technique


Technology: The 3X ReflangeKit® concept is based on a composite double shell system that encapsulates the leaking flange. The first shell covers and protects the flange collecting SF6 leaks. The second shell contains specific resin. An exhaust valve allows the SF6 gas to escape during resin injection. After overnight curing of the resin, the valve is closed and sealed giving a 100% seal and leak free composite repair.


Benefits: The installation was non-invasive and did not require a power outage. Repair was completed online and under pressure. Disassembly was easy, the fix was efficient, and cost effective.


Deliverables: Shunts, bolt heads and flange seals are now protected. The completed repair was tested and successful – further repairs are scheduled. Another satisfied customer, and another testimonial for EMT Site Services.

SF6 Solutions

EMT…A truly Global company – no borders, no barriers, pushing the boundaries of T&D maintenance delivering world class SF6 solutions without limitations.

Global Products

Our world class SF6 Management portfolio is lead by innovative, EMT manufactured technologies for SF6 Gas Analysis & Testing and SF6 Gas Handling. Complemented by specialist high-performance engineered products specifically designed to meet the needs of utilities, our SF6 Gas Recovery and Purification Solutions include SF6 Gas Servicing Carts and SF6 Cryo Separation Systems, designed to meet the many and varied needs of modern SF6 gas reclamation and handling.

Global Services

Our Site Services Team provide a reliable resource and expertise to clients in the utilities sector using a range of technologies and solutions to support asset reliability, long term
compliance and performance, maximum up-time and security of critical infrastructure. Specialist services include: SF6 Leak Management; SF6 Gas Recycling; SF6 Degassing & Filling, and SF6 Training.

Global Support

EMT operate from a number of locations worldwide providing sales and support to clients, and are supported by a global technical channel partner distribution network. Our >80 distributors understand the needs of the industry, selling and technically supporting our products nationally, regionally and locally. Apply here to join EMT global distribution network.

Global Forums

EMT are members of CIGRE & GEL10 working committees for SF6, UK IEC experts, and members of the working group for IEC 60480 & IEC 60376 revisions. We participate in a variety of global forums, international roadshows, training workshops and technical webinars, and exhibit at key power industry events including IEEE PES T&D, International Conference of Doble Clients and CIGRE.

Follow us on LinkedIn for updates on our events schedule in 2022

EMT’s products and services deliver a total SF6 management solution to ensure you have everything you need to keep your SF6 operations running smoothly.