Features
- For top entry drives
- For steel vessels acc. to DIN resp. Non-DIN
- Nitrogen pressurized dual seal, single seal optional
- Balanced
- Independent of direction of rotation
- Multiple springs rotating
- Dry running
- Cartridge unit
Advantages
- Ready-to-fit and factory-tested unit
- With or without bearing available
- Suitable for pressure reversal e.g. in case of barrier pressure failure
- No contamination of the product by barrier fluid
- Friction-locked connection to the shaft
- Connections to DIN 28138 standards or as required (SeccoMix 451)
- ATEX certification available on request
Operating range
Shaft diameter:
d1 = 40 … 220 mm (1.57″ … 8.66″)
Pressure: p1 = vacuum … 6 bar (87 PSI)
Temperature: t1 = -20 °C … +200 (250*) °C
(-4 °F … +392 (482*) °F)
Sliding velocity: vg = 0 … 2 m/s (0 … 6 ft/s)
For applications beyond this range, please inquire.
* with cooling flange
! It should be noted that the extremal values of each operating parameter cannot be applied at the same time because of their interaction.
Materials
Seal face: Carbon graphite, FDA conform
Seat: Silicon carbide, FDA conform
Secondary seals and metal parts according to application and customer’s specifications.