RaXa - The convenient shaft seal
This sealing technology supplements our delivery program with sealing solutions specifically for applications with low speed and the risk of dry running or inadequate lubrication with a liquid medium
Innovative concept
RaXa is a flexible packaging system with innovative technology. There are no high-precision sealing surfaces or springs and there is nothing fragile in the cartridge. The seals use a flexible sealing compound as a sealing medium, which remains compressed in the system. The sealing compound is kept at a pressure that is slightly above the pressure to be sealed by a gas-powered piston. The sealing material acts as an adaptable stationary seal and thus compensates for wave movements without affecting the sealing quality.
Applications
- Screw conveyors
- Vacuum dryers
- Ball mills
- Screw pumps
- Cellular wheel sluice
- Rotary valves
- Agitators
- Mixers
Variants
- Split seals
- Cartridge designs with integrated bearing
- Designs to compensate for increased radial misalignments
- Designs according to ATEX
- Seals with upstream cooling flange
Life cycle costing
Stuffi ng box packings are simple and inexpensive seals. However, they are not technically tight and require a high maintenance effort. A very good sealing function is achieved with a double mechanical seal with barrier fluid. On the other hand, this requires a supply system that needs to be serviced regularly. In this field of tension, RaXa offers a high-quality seal with minimal maintenance requirements and moderate costs.
properties
The convenient shaft seal
Technically tight 1)
No sensitive
components
Low maintenance
effort
1) Seals are regarded as “technically tight” when a barrier medium is introduced between the medium to be sealed and the atmosphere (double seal with barrier medium).
Your benefits
- Easy mounting due to pre-assembled units
- Long maintenance intervals
- Robust design with high fault tolerance during installation and operation
- Permanently technically tight
- High sealing function ensures a clean surrounding of the technical plant
- Lowered maintenance costs
- Low contamination by the sealant
Flexible packing systems for sealing rotating shafts
Would you like to understand even better how the flexible packing system differs from mechanical seals and packings and which functional principle makes them so innovative? Learn more about this in our technical article and discover the available sealing options.