Standard or Nonstandard:standard Brand:chesterton891 type:double seal Style:Mechanical seal Brand name:JY Temperature:-20-200degree pressure:15bar Material: face:CA,CE,SC,SSIC,TC,Mets:316SS,Hastenlloy C. Model Number U800 Application:paper Product feature: JY U800 mechanical seal alternative to Chesterton 891 seals for water pumps JYU800 mechanical seal alternative to Chesterton 891 seals Multi-Spring Single Seal Product Description: JY U800 mechanical seal alternative to Chesterton 891 seals for water pumps Operating Conditions: Pressure: =25 Bar Temperature: -20?~200? Speed: = 20 m/s Seat compability: Standard:A12 Alternatives:A7 Materials: Face: Carbon,SiC, SSiC, TC Seat: SiC, SSiC, TC Secondary Sealing: EPDM,FKM,NBR Spring and Metal parts: 316SS,304SS