SH seal
SH seal

Features mechanical seal sh

  • Single seal
  • Balanced
  • Cartridge unit
  • Stationary multiple springs
  • Shrink-fitted seal ring
  • Solid mating ring

Advantages mechanical seal sh

  • Engineered seal for extended requirements
  • Deformation-optimized seal for high pressure and high sliding velocity
  • Insensitive to shaft deflections due to stationary design
  • Version for extreme applications available

Operating range mechanical seal sh

  • Shaft diameter:
    d1 = 40 … 110 (250) mm (1.57″ … 4.33 (9.84)”
  • Pressure:
    p1 = 42 (150) bar (609 (2,175) PSI)
  • Temperature:
    t = -40 °C … +176 (+200) °C (-40 °F … +350 (+394) °F)
  • Sliding velocity:
    vg = 23 (60) m/s (76 (197) ft/s)
  • Axial movement: ±3.0 mm

Materials mechanical seal sh

  • Seal ring: Blister resistant carbon,
    Silicon carbide SSiC (Q1), RBSiC (Q2, Q3)
  • Mating ring:
    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.
ItemDescription
1Seal ring
2, 6, 8, 12, 13O-Ring
3, 16Spring
4Thrust ring
5Mating ring
7, 10Set screw
9Sleeve
11Seal sleeve
14Gland plate
15Throttle ring
17Disk
18Set ring
19Setting device
20Hexagon bolt
21Plug

Recommended applications seal sh

  • Oil and gas industry
  • Refining technology
  • Chemical industry
  • Crude oil feed pumps
  • Injection pumps
  • Multiphase pumps