SF6 Gas Purification and Refilling Unit 

HOPU CE marked GRT SF6 Gas Recovery, Purification & Refilling Unit is main used for manufacture, installation and maintenance of SF6 electrical equipments, such as circuit breakers, GIS(gas insulated switchgears), 

high-voltage transformers, high-voltage transmission lines, substations, etc. It is composed of vacuum system, compression systems, purification systems, storage system, condensing system and re-filling system.