Applications: Shaft Size =8 ¡« 50mm Pressure: 0.5 Mpa Temperature: -20 ¡« 100 ¡æ Speeds:5 m/s Materials: Rotary Ring: Carbon/SiC/TC Stationary Ring: Ceramic/SiC/TC Secondary Seals: NBR/EPDM/Viton Spring & Other Parts: SS304/SS316