shaft seal /industrial seal/HF7310D Operating limits: pressure:0~1.2mpa speed:0~3000rmp temperature:-40~220 Shaft Seal / Industrial Seal/HF7310D1.Operating limits:pressure:0~1.2mpa,speed:0~3000rmptemperature:-40~2202.Materialrotary ring :Carbon/sic/tcstationary ring :ceramic/sic/tcsecondary seal: nbr/epdm/vitonspring and other parts :s.s/sus304/sus316 shaft seal /industrial seal/HF7310D