Combined Materials:
Stationary Ring (Carbon/SiC/TC)
 Rotary Ring (Carbon/SiC/TC/Steel)
 Secondary Seal (NBR/EPDM/Viton)
 Spring and Metal Part (Steel)
Working Conditions:
Mediums: Water, oil, weak acid, 
 weak alkali, etc.
 Temperature: -20oC~200oC
 Pressure: =0.8Mpa
 Speed: = 15m/Sec