• API 682 4th Edition

BGSR-Ta Dual Seal

  • API 682 Category 2 and 3, Type A, Arrangement 3 seal
  • Dual seal in face-to-back configuration
  • Gas-lubricated
  • Cartridge construction
  • Balanced design
  • Independent of direction of rotation
  • Contact free operation, no friction
  • Stationary springs

Details

  • 1,12

    Seal ring

  • 2,4,7,10,11,14,20,21

    O-ring

  • 3,13

    Mating ring

  • 5,15

    Thrust ring

  • 6,16

    Spring

  • 8

    Shaft sleeve

  • 9

    Adapter sleeve

  • 17

    Support ring

  • 18

    Pusher ring

  • 19

    Intermediate gland

  • 20

    Gland

  • 23

    Retaining ring

  • 24

    Set ring

  • 25,29

    Hexagon bolt

  • 26

    HSH cap screw

  • 27

    Set screw

  • 28

    Assembly plate

  • GBI

    Gas Barrier IN

  • GBO

    Gas Barrier OUT

  • Suitable for both, retrofits and original equipment
  • Varied selection of materials available
  • Metal parts available in special materials
  • API 610/ISO 13709 pumps
  • Media with gaseous leakage
  • Oil and gas industry
  • Petrochemical industry
  • Refining technology
  • Process pumps
  • Media which require high purity
  • Environmentally harmful media
  • Seal ring (product side): Silicon carbide Q19, SSiC (Q1)
  • Seal ring (atmospheric side): Blister resistant carbon, Silicon carbide SSiC (Q1), Q19
  • Mating rings: Silicon carbide SSiC (Q1), RBSiC (Q2)
  • Secondary seals: EPDM (E), NBR (P), FKM (V), FFKM (K)
  • Springs: Hastelloy ® C-4 (M)* and C-276 (M5)
  • Metal parts: CrNiMo steel 316 (G) or equivalent, optional materials on request
    * Sealmatic standard
  • Shaft diameter:
    d = 20 … 110 mm (0.79″ … 4.33″)
  • Pressure :
    p1 = 42 bar (609 PSI)
  • Temperature:
    t = –20 °C … +176 °C (–4 °F … +350 °F)
  • Sliding velocity:
    vg = 4 … 23 m/s (13 … 76 ft/s)
  • Axial movement: ±1.0 mm
  • Process side:
    01, 02, 03, 11, 12, 21, 22, 31, 32, 41
    Between seals:
    74

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