OPERATING LIMITSTemperature: -30℃~ 200℃Pressure: ≤1.6MPaSpeed: ≤20m/s● Stationary Ring(Carbon/SiC/TC)● Rotary Ring(SiC/TC/Carbon) ● Secondary Seal(VITON/PTFE VITON)● Spring & Other Parts(SUS304/SUS316)