Handling conditions of mechanical seals DY52P, applicable in water pumps,sewage pumps and chemical pumps, etc. mechanical seal working temperature and pressure:-20oC~180oC/ ≤2.5Mpa, mechanical seal shaft speed:≤ 10m/Sec. Materials of mechanical seal faces/rings:ceramic,silicon carbide/sic/sintered silicon carbide/ssic,tungsten carbide/tc,carbon.NBR,FKM,Epdm etc as secondary sealing elements. spring and metal parts: SUS304, SUS316