Project Description


Item No.Description
1.1.1Seal face
2Shaft sleeve
8Pumping screw with flow guide
9Assembly fixture
14Shrink disk
  • Accommodates shaft deflections due to
    stationary design
  • Can be designed for individual pump
    application with corresponding
    connection parts to be adapted to the
    pump seal chamber
  • Optimum heat dissipation due to
    integrated pumping device available for
    increased efficiency in circulation and
    optimized seat design
  • Cartridge unit factory assembled for
    easy installation, which reduces downtime
  • Trouble-free long-term operation due to
    heavy duty single seat design with
  • Can operate under high sliding
    velocities and medium pressures
  • Boiler feed water pumps
  • Power plant technology
  • Seal face: Silicon carbide (Q), Carbon
    graphite antimony impregnated (A), Carbon
    graphite resin impregnated (B)
  • Seat: Silicon carbide
  • Secondary seals: EPDM (E), FFKM (K)
  • Springs: CrNiMo steel (G)
  • Metal parts: CrNiMo steel (G)
  • Sizes: d1* = Upto 250 mm (Upto 10.000’’)
  • Pressure: p1 = 50 bar (725 PSI)
  • Temperature: t = 300 °C (572 °F)
  • Speed = 60 m/s (197 ft/s)
  • Permissible axial movement: ±3 mm
    * Other sizes on request
  • Single seal configuration
  • Balanced design
  • Independent of direction of rotation
  • Cartridge construction
  • Stationary design with multiple springs
  • Designed with integrated pumping
    device for increased efficiency in
  • Robust construction with shrink-fitted
    seal face
  • Heavy duty design of solid single
    stationary seat