Project Description

C851-E

  • C851-E
  • C851-E
Item No.Description
1.1Seal face
1.2Seal face
1.3Thrust ring
1.4Drive collar
1.5Spring
1.6Set screw
1.7O-Ring
1.8O-Ring
2Seat (G9)
3O-Ring
4Seat (G9)
5O-Ring
  • Versatile torque transmission available
  • Capable of self cleaning
  • Multifaceted application usage
  • Pumping device to increase efficiency
    in circulation for media with higher
    viscosity available
  • Short installation length available on
    request
  • Suitable for media with low solids content
  • EN 12756 (For connection dimensions d1 up to 100 mm)
  • Adhesives
  • Chemical industry
  • Media with poor lubrication properties
  • Medias with low solids content and abrasive particles
  • Process industry
  • Toxic and hazardous media
  • Chemical standard pumps
  • EN 12756
  • Seal face: Silicon carbide (Q1, Q2), Carbon graphite
    antimony impregnated (A),
    Aluminium oxide (V), Special cast CrMo steel (S)
  • Seat G9: Carbon graphite antimony impregnated (A),
    Carbon graphite resin impregnated (B), Silicon carbide
    (Q1*, Q2*)
  • Secondary seals: EPDM (E), NBR (P), FKM
    (V), FFKM (K)
  • Springs: CrNiMo steel (G)
  • Metal parts: CrNiMo steel (G), Duplex (G1)
    * Cannot be combined with seal face made of S
  • Sizes: d1 = Upto 200 mm (Upto 7.875’’)
  • Pressure:
    p1 = 80 bar (1160 PSI) for d1 = 14 … 100 mm,
    p1 = 25 bar (363 PSI) for d1 = 100 … 200 mm,
    p1 = 16 bar (232 PSI) for d1 > 200 mm
  • Temperature: t = -50 °C…+220 °C
    (- 58 °F…+428 °F)
  • Speed = 20 m/s (66 ft /s)
  • Permissible axial movement:
    d1 up to 100 mm: ± 0.5 mm
    d1 from 100 mm: ± 2.0 mm
  • Dual seal configuration
  • Balanced design
  • Independent of direction of rotation
  • For stepped shafts
  • Rotary unit with multiple springs
  • Pumping device available for increased
    efficiency in circulation (B740F-D)