Item Description
1.1 Seal face1)
1.2 Driver collar
1.3 O-Ring1)
1.4 O-Ring1)
1.5 Spring
1.6 Set screw
1.7 O-Ring1)
2 Stationary seat1)
3 O-Ring1)

1) For disassembly of unsplit seal faces, seats and O-Ring these should be broken or cut.



  • For plain shafts (HGH201)
  • Semi split single seal
  • Multiple springs rotating
  • Balanced
  • Independent of direction of rotation
  • Unsplit as original equipment (HGH200)
  • Cartridge available (based on HGH210)
  • Variant for stepped shafts available (HGH211)
  • Splitted seal parts:
    sliding faces and O-rings


  • Economical: no complete dismantling of pump necessary
  • Reduction of down-times and installation times
  • Springs are protected from the product
  • Rugged seal design
  • Split seat can be used on both sides

Operating range

Shaft diameter:
d1 = 50 ... 310 mm (2" … 12.20")
(larger diameters on request)
Pressure: p1 = 25 bar (363 PSI)
Temperature: t1 = 150 °C (302 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Axial movement: ±2.0 mm


Seal face: Silicon carbide (Q1, Q2)
Seat: Silicon carbide (Q1, Q2), Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B)
Secondary seals:
FKM (V), EPDM (E), NBR (P)
Metal parts: CrNiMo steel (G)

Product variants

Dimensions, items and descriptions as HGH201. Item 1.2 driver collar is modified for securing on stepped shafts.
For first fit the seal comes unsplit: Designation HGH210.
Stationary design.
For first fit the seals come with unsplit sliding faces and O-rings. Seal face also available in carbon graphite resin impregnated (B).

Dimensions on request.

Item Description
1 Seal face
2 Seat
3, 4 Adapter
5 Spring
6 Cover
7 Housing
8 Packing
9 Shaft sleeve
10 Pneumostop
11 Flange
Fully split seal based on HGH. Stationary design with rotating seat. To make a straightforward installation possible, all parts of the seal are split.

Item Description
1 Seal face
2 Seat
3 Adapter
4 Spring
5 Cover

Similar products


  • Fully split single seal, 2 x 2 segments, pre-assembled
  • Semi-cartridge
  • Balanced
  • Stationary springs
  • Bi-directional
  • External pressurization
  • Built-in flushing connections
  • Installation and wear control

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