Features
Multiple Springs
Bi-directional
EN 12756 Standard
Equivalent to M74
Recommended Applications
Paper and textile printing industry, petrochemical industry and sewage treatment industry
Low solids content or viscous media
Sewage pumps, chemical pumps, screw pumps, Gear wheel feed pumps and multistage pumps
Other Rotating Equipment.
Operating range
Shaft diameter: d1=18...200mm
Pressure: p=0...1.6Mpa（232psi）
Temperature: t = -40 °C ...220 °C（-40°F to 428°F）
Sliding velocity: Vg≤20m/s（65.6ft/s）
Notes: The range of preesure,temperature and sliding velocity is depend on seals combination material
Product Structure
Combination Materials
1.Rotary Face
Reaction Bonded Sic RBSIC O
Sintered Silicon Carbide SSlC O1
Tungsten Carbide.Ni-binder W
Cr-Steel (Solid) E
2.Stationary Seat
Carbon graphite, resin impreg Ak
Carbon graphite,antimony impreg AD
Reaction Bonded Sic RBSIC O
Sintered Silicon Carbide SSlC O1
Tungsten Carbide.Ni-binder W
3.Auxiliary Seal
Fluoroc arbon RubberFKM V
Etylene Propylene RubberEPDM E
Perfluorocarbon Rubber FFKM K
4.Spring
GrNiMo-Steel (AlS1316) G
Hastelloy C-4 M
5.Metal Parts
GrNi-Steel (AlS1304) F
GrNiMo-Steel (AlS1316) G
