• API 682 4th Edition

UFL650-D Dual Seal

  • API 682 Category 2 and 3, Type C, Arrangement 3 seal
  • Dual seal in face-to-face configuration
  • Balanced design
  • Independent of direction of rotation
  • Cartridge construction
  • For plain shafts
  • Stationary metal bellows design
  • Shrink fitted seal rings and solid mating rings

Details

  • 1.1.1, 2.1.1

    Seal ring with Bellows unit

  • 1.1.2, 2.1.2,6,9

    Gasket

  • 1.2, 2.2

    Mating ring

  • 1.3,2.3,4

    Sealing ring

  • 1.4, 2.4,8

    HSH cap screw

  • 1.5

    Lock ring

  • 1.6,11,12

    Set screw

  • 3

    Shaft sleeve

  • 5

    Intermediate gland

  • 7

    Gland

  • 10

    Set ring

  • 13

    Pusher ring

  • 14,16

    Hexagon bolt

  • 15

    Assembly plate

  • LBI

    Liquid Barrier IN

  • LBO

    Liquid Barrier OUT

  • Suitable for high and low temperature application
  • Compact design
  • No dynamically loaded O-ring which reduces chances of seal face hang-up
  • Pumping screw for media with higher viscosity also available
  • Short installation length possible
  • Rugged design for long operating life
  • Bellows design efficiently ensure self self-cleaning
  • Bellows design minimizes variation in face load due to shaft expansion or face wear
  • Resistant to abrasive particles in the medium, no shaft or sleeve fretting
  • Refining technology
  • Oil and gas industry
  • Petrochemical industry
  • Chemical industry
  • Power plant technology
  • LPG plants
  • API 610/ISO 13709 pumps
  • Process pumps
  • Seal rings: Blister resistant carbon, Silicon carbide SSiC (Q1), RBSiC (Q2)
  • Mating rings: Silicon carbide SSiC (Q1), RBSiC (Q2)
  • Bellows: Inconel® 718 (M6)
  • Secondary seals: Graphite (G)
  • Metal parts: CrNiMo steel 316 (G), Carpenter® 42 (T4)
  • Shaft diameter:
    d1 = 20 … 110 mm (0.79″ … 4.33″)
  • Pressure:
    p = vacuum … 20 bar (… 290 PSI)
  • Temperature: t = –130 °C … +400 °C (–202 °F … +752 °F)
  • Sliding velocity: vg … 50 m/s (… 164 ft/s)
  • Process side:
    01, 02, 03, 11, 12, 13, 14, 21, 22, 31, 32, 41
    Between seals: 53A, 53B, 53C, 54
    Atmospheric side*: 61, 62, 65A, 65B
    *Throttle bushing on request

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