M74D mechanical seal is double end, multiple small springs, unbalanced, bi-directional rotation, drive sleeve torque transmission, back-to-back arranged structure. This seal assembly serves as a direct replacement for equivalent original seal units used in KSB, Kaiquan and similar model water pumps. It is mainly applied in chemical centrifugal pumps, vacuum pumps, axially split case pumps, fans, compressors and paper-making equipment, M74D mechanical seal widely used in chemical processing, petroleum refining, petrochemical industry, sewage treatment, pesticide and chemical fertilizer production.
Mechanical Seal, Mechanical Seal, mechanical seal for compressor
M74D
Materials:
Sealing ring:Carbon,SSiC
Elastomers: NBR,EPDM,FFKM,FKM
Springs:306,316,HC-276
Metal Parts:410S,304,316,316L
Process condition:
Pressure:0~1.6Mpa
Temperature:-20℃~180℃
Line speed:≤20m/s
Shaft size:20~300mm
Mediums: oil, water, acid, alkali, organic solvents and mediums that are easy to be crystallized or have granules and high viscosity.
Application:chemical centrifugal pumps, vacuum pumps, axially split pumps, blowers, compressors and paper-making equipment







