At present,sulfur hexafluoride recycling and purification units in China are less inferior than those in the world.Today,Luoyang Phillier Special Gas Co.,Ltd.overview of the performance characteristics of various imported recovery devices:

　　Japan KAJI sulfur hexafluoride recovery purification device,the use of small,mostly used in SF6 electrical manufacturers.Adopt freeze-liquefaction method,have oil system.User response,high reliability and durability.

　　American LIMCO power system use,only a few.Adopt freeze-liquefaction method,have oil system.User response recovery speed,fast liquefaction speed,high efficiency.

　　Germany SIEMENS power system use,a small number of sulfur hexafluoride recovery purification is an oil system,gas storage.

　　Germany DILO imported recycling device in the use of large,SF6 electrical manufacturers and power system are used.Adopt high pressure liquefaction method,no oil recovery system.

　　Swiss MICAFILSF6 electrical factory and power system are used,the use of freeze liquefaction method,no oil recovery system.The product is ten years old,in recent years the company has discontinued the recycling device.

　　The Canadian ENERVACGRU-4 uses sulfur hexafluoride recovery and purification system only in the power system and is only suitable for small SF6 circuit breakers.Small size and light weight,but slow recovery.Adopt high pressure liquefaction method,less oil recovery system.

　　CRYQUIPT**has entered the domestic market in recent years.For power system use,sulfur hexafluoride recovery and purification is suitable for small sulfur hexafluoride gas circuit breaker.Smaller and lighter,but slow to recover.Adopt high pressure liquefaction method,oil recovery system.