Structure DescriptionEquivalent to Burgmann Cartex-DN/Cartex Dual seals/eCartex Dual seals/Cartex ANSI Dual seals/eCartex ANSI Dual sealsDouble cartridge mechanical sealMultiple spring,balanced,most popular sealOperating LimitsTemperature:-50---204℃Speed:23m/sPressure:20barStandard Size:25-100mm or 1″-4.00″Material:Seal ring:Car,Sic,Ssic,TCSecondary seal:NBR,Viton,EPDM,KalrezSpring and metal parts ...