• API 682 4th Edition

UFL850 Single Seal

  • API 682 Category 2 and 3, Type B, Arrangement 1 seal
  • Single seal configuration
  • Balanced design
  • Independent of direction of rotation
  • Cartridge Construction
  • For plain shafts
  • Rotary metal bellows design
  • Shrink fitted seal ring and solid stationary ring

Details

  • 1.1.1

    Seal Ring with Bellows Unit

  • 1.1.2,1.3,3,9

    O-ring

  • 1.1.3,11

    Set screw

  • 1.2

    Mating ring

  • 2

    Shaft sleeve

  • 4

    Gland

  • 5

    Throttle bushing

  • 6

    Spring

  • 7

    Washer

  • 8

    Multi-flow distributor

  • 10

    Set ring

  • 12

    Setting plate

  • 13

    Hexagon bolt

  • f

    Flush

  • q

    Quench

  • d

    Drain

  • Compact design construction
  • Balanced bellows design allows installation on plain sleeve
  • Elimination of seal face hang up due to absence of dynamic O-Ring
  • Face load variation is minimised due to bellows design on account of shaft expansion or face wear
  • Resistance to abrasive particles in the medium, no shaft or sleeve fretting
  • Narrow seal face width leads to low heat generation and power consumption
  • Extended seal life
  • API 610/ISO 13709 pumps
  • Refining technology
  • Oil and gas industry
  • Petrochemical industry
  • Chemical industry
  • Power plant technology
  • LPG plants
  • Process pumps
  • Seal ring: Blister resistant carbon
  • Mating ring: Silicon carbide SSiC (Q1), RBSiC (Q2)
  • Bellows: Hastelloy ® C-276 (M5)
  • Option: Inconel® 718 (M6)
  • Secondary seals: EPDM (E), NBR (P), FKM (V), FFKM (K)
  • Metal parts: CrNiMo steel 316 (G), Hastelloy ® C-276 (M5)
  • Shaft diameter:
    d1 = 20 … 110 mm (0.79″ … 4.33″)
  • Pressure:
    p = vacuum … 20 bar (290 PSI)
  • Temperature:
    t = –40 °C … +200 °C (–40 °F … +392 °F)
  • Sliding velocity:
    vg … 23 m/s (75ft/s)
  • Process side:
    01, 02, 03, 11, 12, 13, 14, 21, 22, 23, 31, 32, 41
    Atmospheric side: 51, 61, 62, 65A, 65B, 66A, 66B

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