GSO-DN

GSO-DN For a larger view, please mouseover the image.
For a larger view, please mouseover the image.
Item Description
1, 2 Seal face
3, 4, 8, 10, 13 O-Ring
5, 6 Spring
7 Seat
9 Shaft sleeve
11 Flange
12 Gasket
14 Cover
15, 22, 25 Countersunk screw
16 Retaining ring
17 Pin
18 Ring
19 Set ring
20 Set screw
21 Pumping ring
23 V-Seal
24 Assembly fixture
  • Seat rotating
  • Stationary springs
  • Double seal
  • Balanced
  • Standard version with V-grooves, U-grooves optional (independent of direction of rotation)
  • Gas-lubricated
  • Contact free operation
  • Face-to-face
  • Cartridge unit
  • Does not open in the event of buffer pressure failure
  • Self closing at pressure reversal
  • No additional complex components to dissipate frictional heat
Shaft diameter:
d1 = 30 ... 75 mm (1,125" ... 2,625")
(other dimensions on request)
Product pressure:
p1 = max. 22 bar (319 PSI),
(dependent on shaft diameter and sliding materials)
Barrier pressure: p3 = max. 25 bar (362 PSI),
Differential pressure: Δp= min. 3 bar (44 PSI)
Temperature:
t = -20 °C ... +170 °C (-4 °F ... +338 °F)
(dependent on resistance of O-Rings)
Sliding velocity: vg = 16 m/s (52 ft/s),
with special design max. 25 m/s (82 ft/s)
Axial movement: ±0.2 mm
Seal faces: Carbon graphite (A)
Seat: Silicon carbide (Q1, Q2)
Secondary seals:
FKM (V), EPDM (E), FFKM (K)
Springs: Hastelloy® C-4 (M)
Metal parts:
CrNiMo steel (G), Hastelloy® C-4 (M)
  • Chemical industry
  • Refining technology
  • Gases and liquids
  • Media which require high purity
  • Environmental harmful media
  • Blowers
  • Fans
  • Pumps