• Gas Lubricated Seals for Pumps & Agitators

GSPH-K

  • Single and Dual seal configuration
  • Balanced design
  • For stepped shafts
  • Rotary unit with multiple springs
  • Designed to remain in closed position in the event of buffer pressure failure
  • Can accommodate reverse pressure
  • Gas-lubricated design
  • Gas grooves design is available in Vgrooves and U-grooves (independent of direction of rotation)

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Details

  • 1.1

    Sliding face

  • 1.2

    O-Ring

  • 1.3

    Thrust ring

  • 1.4

    Drive collar

  • 1.5

    Spring

  • 1.6

    Set screw

  • 2

    Seat

  • 3

    O-Ring

  • Seal faces are designed to be noncontacting during operation
  • Designed for environmental protection with high efficiency
  • Due to non-contacting design there is no friction on the seal faces and there is no heat generated at the seal or in the medium
  • Trouble free operations as complex components are not required to dissipate frictional heat
  • Differential pressure not required with hard / soft material combination
  • Conforms to containment seal in accordance with API 682
  • Chemical industry
  • Refining technology
  • Gases and liquids(single seals only gas)
  • Gases and liquids which must not get into the atmosphere (dual seal)
  • Gases not harmful to the environment (single seal)
  • Fans
  • Small steam turbines
  • Blowers
  • Roots compressors
  • Pumps
  • Seal face: Carbon graphite antimony impregnated (A),
    Silicon carbide (Q2),alternatively: Carbon graphite resin
    impregnated (B), Silicon carbide (Q1) Seat: Silicon carbide (Q1, Q2),
    Silicon carbide (Q19, Q29) with seal face in Q1 resp. Q2
  • Metal parts: CrNiMo steel (G)
  • Shaft diameter: d = 28 … 125 mm (1.10″ … 4.92″)
  • Pressure: p = 25 bar (363 PSI)
  • Temperature: t* = -20 °C…+170 °C (-4 °F…+338 °F)
  • Sliding velocity: v = 4 … 25 m/s (13 … 82 ft/s)
    * Depending on resistance of O-rings
  • EN 12756
  • API 682 / ISO 21049

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