Project Description


Item No.Description
1.1.1Seal face pressure-stabilized
1.1.4Back-up ring
2Seat housing with pumping screw (F) or pumping ring (P)
9Assembly fixture
  • Accommodates shaft deflections due to
    stationary design
  • Can be designed for individual pump
    application with corresponding
    connection parts to be adopted 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 high pressures
  • Amines
  • Caustic soda
  • Chemical industry
  • Crude oil
  • Crystallizing media
  • Crude oil feed pumps
  • Hot water
  • Injection pumps
  • Multi-phase pumps
  • Oil and gas industry
  • Process water
  • Refining technology
  • Sour water
  • API 682 / ISO 21049
  • Seal face: SiC-C-Si silicon impregnated carbon (Q3), Carbon graphite antimony
    impregnated (A)
  • Seat: Silicon carbide (Q)
  • Secondary seals: FKM (V), EPDM (E),
    FFKM (K)
  • Springs: Hastelloy® C-4 (M)
  • Metal parts: CrNiMo steel (G), Duplex (G1),
    Super Duplex (G4), Titanium (T2),
    Hastelloy® C-4 (M)
  • Sizes: d1* = Upto 250 mm (Upto 10.000’’)
  • Pressure: p1 = 150 bar (2,175 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 stationary seat