1. Stationary ring(ceramic/SIC/TC).
2. Rotary ring(carbon/SIC/TC).
3. Secondary seal(NBR/EPDM/VITON).
4. Spring & other parts(Copper/SUS304/SUS316).
Main characteristics 1. Mostly use: pump of cooled, oil and other low corrosion Mediums. 2. Temperature in the sealed chamer: -20°C~120°C 3. Pressure in the sealed chamber: <=0.3Mpa 4. Linear velocity: <=10m/Sec