SSI-22NC
April 21, 2021
SSI-22WNC
April 21, 2021
SSI-6WU
SEAL TYPE SSI-6WU (UNBALANCE WAVE SPRING SEAL)
Features
- For plain shafts
- Single seal
- Unbalanced
- Super-Sinus-spring or multiple springs rotating
- Independent of direction of rotation
- Variant with PTFE secondary seals for high chemical resistance
Advantages
- Universal application opportunities
- Efficient stock keeping due to easily interchangeable faces
- Extended selection of materials
- Insensitive to low solids contents
- Flexibility in torque transmissions
- Self cleaning effect
- Short installation length possible (G16)
- Pumping screw for media with higher viscosity (M7..F)
Description
Operating range
- Shaft diameter: d1 = 14 … 100 mm (0.55 ” … 3.94 “)
- Pressure: p1 = 25 bar (363 PSI)
- Temperature: t = -50 °C … +220 °C (-58 °F … +428 °F)
- Sliding velocity: vg = 20 m/s (66 ft/s)
- Axial movement:
- d1 = up to 25 mm: ±1.0 mm
- d1 = 28 up to 63 mm: ±1.5 mm
- d1 = from 65 mm: ±2.0 mm
Materials
- Seal face: Special cast CrMo steel , Silicon carbide , Aluminium oxide (V)
- Seat G9: Carbon graphite antimony impregnated , Carbon graphite resin impregnated Silicon carbide
- Secondary seals: EPDM , NBR FKM , FFKM
- Springs: CrNiMo steel Metal parts: CrNiMo steel , Duplex (* Cannot be combined with seal face made of S
Standards and approvals
- EN 12756
Recommended applications
- Process industry
- Chemical industry
- Pulp and paper industry
- Water and waste water technology
- Shipbuilding
- Lube oils
- Low solids content media
- Water / sewage water pumps
- Chemical standard pumps
- Vertical screw pumps
- Gear wheel feed pumps
- Multistage pumps (drive side)
- Circulation of printing colors with viscosity 500 … 15,000 mm2/s
