Could be equivalent to EKATO ESD series mechanical seals. Equivalent to the seals used on the following type of EKATO Agitators
HWL2060N
HWL2080N
HWL2100N

Specifications:
Total solid%: <35%
Temperature :< 75oC
Pressure: <1.6MPa
Line speed: <10m/s
Material: Stainless steel
Rotating ring: SiC
Suit to: media for much particulates of gypsum, limestone slurry, etc..
 
Figure & Descriptions:
Single face, balanced, Single Cartridge Mechanical Seals, with bearing
Easy to install and maintain
Multi-spring construction, will not touch media directly
No externally washing water
SiC seal ring with high intension and high temperature resistance