Operating conditions: temperature: -20°C to +180°C; pressure: ≤ 1.2 MPa; speed: ≤ 15 m/s. 固定座:BP. Materials: Rotating ring: Carbon/SiC/TC; Stationary ring: 99% Ceramic/SiC/TC; O-ring: VITON, NBR, EPDM; Springs and metal parts: SUS304/SUS316.