• API 682 4th Edition

CTXAPI-DN Dual Seal

  • API 682 Category 1, Type A, Arrangement 2 & 3
  • Dual seal in face-to-back configuration
  • Balanced design
  • Independent of direction of rotation
  • Cartridge construction
  • Robust construction with shrink-fitted seal faces
  • Heavy duty solid seat design

Details

  • 1,9

    Seal ring

  • 2,5,7,10,13,15,16,17

    O-ring

  • 3,11

    Spring

  • 4,12

    Mating ring

  • 6

    Shaft sleeve

  • 8

    Intermediate Gland

  • 14

    Driver

  • 19

    HSH Cap screw

  • 18

    Gland

  • 20

    Set ring

  • 21,24

    Set screw

  • 22

    Setting plate

  • 23

    Hexagon bolt

  • LBI

    Liquid Buffer IN

  • LBO

    Liquid Buffer OUT

  • Designed to accommodate shaft deflections and process fluctuations
  • Efficient construction for heat dissipation
  • Compact installation design
  • Factory assembled cartridge unit for easy installation
  • Springs are product protected to avoid contamination
  • Can accommodate reverse pressure
  • Can handle extensive applications in various temperatures and pressures
  • Versatile in design to fit various seal chambers
  • Chemical industry
  • Light volatile and highly viscous hydrocarbons
  • Low solids content and low abrasive media
  • Media with poor lubrication properties
  • Oil and gas industry
  • Petrochemical industry
  • Toxic and hazardous media
  • Standard pumps
  • Vertical and horizontal ANSI chemical pumps
  • Seal ring: Blister resistant carbon, Silicon carbide SSiC (Q12)
  • Mating rings: Silicon carbide SSiC (Q1)
  • 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:
    d1 = 20 … 110 mm (0.79″ … 4.33″)
  • Pressure:
    p1 = 22 bar (319 PSI)
  • Temperature:
    t = -40 °C … +176 °C (-40 °F … +349 °F) (>176 °C (349 °F) please enquire)
  • Sliding velocity:
    vg = 23 m/s (75ft/s)
  • Recommended piping plans – 2CW-CW
    Process side:
    01, 02, 03, 11, 12, 13, 14, 21, 22, 23, 31, 41, 32
    Between seals:52, 55
    Atmospheric side*: 61, 62, 65A, 65B
    *Depending on application, please enquire
  • Recommended piping plans – 3CW-FB
    Process side:
    01, 02, 03, 11, 12, 13, 14, 21, 22, 23, 31, 41, 32
    Between seals:53A, 53B, 53C, 54
    Atmospheric side*: 61, 62, 65A, 65B
    *Depending on application, please enquire

Other products