Operating conditions: Temperature: -40°C to +180°C; Pressure: ≤0.8MPa; Speed: ≤15m/s. Materials: Rotating ring: Carbon/SiC/TC; Stationary ring: SUS304/SUS316/SiC/TC; O-ring: VITON, NBR, EPDM; Springs and metal parts: SUS304/SUS316.