Project Description

DUY-HTEO

  • DUY-HTEO
  • DUY-HTEO
  • DUY-HTEO
Item No.Description
1,9Seal face
2,5,7,10,12,18O-ring
3Spring
4,11Seat
6Shaft sleeve
8Cover
13Adapter
14Ring
15Set screw
16Retaining ring
17Counter-sunk socket screw
19Assembly fixture
20HSH Cap Screw
21Gasket
  • 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
  • Chemical industry
  • Refining technology
  • Gases and liquids
  • Media which require high purity
  • Environmental harmful media
  • Pumps
  • Seal face: Silicon carbide (Q1/Q19)
  • Seat: Silicon carbide (Q19/Q1)
  • Secondary seals: FKM (V), EPDM (E), FFKM (K)
  • Spring: Hastelloy® C-4 (M)
  • Metal parts: CrNiMo steel (G), Hastelloy® C-4 (M)
  • Shaft diameter:
    d1 = 30 … 100 mm (1.18″ … 3.94″)
  • Pressure:
    p1 = 13 bar (189 PSI),
    p3 = 16 bar (232 PSI)
    with V-grooves (uni-directional)
    p1 = 9 bar (131 PSI),
    p3 = 12 bar (174 PSI)
    with U-grooves (bi-directional)
    Differential pressure (p – p ) = min. 3 bar (44 PSI)
  • Operating temperature limits for:
    EPDM -20 °C … +140 °C (-4 °F … +284 °F)
    FFKM – 20 °C … +120 °C (-4 °F … +248 °F)
    FKM -20 °C … +170 °C (-4 °F … +338 °F)Speed = 4 … 15 m/s (13 … 49 ft/s)
    Axial movement: ± 1.0 mm
  • Dual seal configuration
  • Balanced design
  • Cartridge construction
  • Stationary design with multiple springs
  • Seat design is rotary
  • 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)