Maintenance
Operating_Manual_Fan_KXE_04_en.docx
108 / 128
Several carbon graphite sealing rings are used for the
labyrinth seal. There are four variants of labyrinth seal:
Type
Structural design
REW701-01
Suitable for connection to re-lubrication
device (grease injector), maximum
handled gas tempe80 °C
REW701-11
Suitable for connection to re-lubrication
device (grease injector), maximum
handled gas tempe180 °C
REW701-22
Suitable for connection to barrier gas line
REW702-22
Suitable for connection to barrier gas line
and with drainage
NOTICE!
Refer also to the separate instructions of the labyrinth
seal manufacturer.
NOTICE!
Sealing rings and complete seals may be ordered
directly from REITZ. Always specify the serial
number of the fan when ordering.
Fan configuration in accordance with ATEX (optional):
If the fan is intended for use in potentially explosive
environments pursuant to Directive 2014/34/EU (ATEX), the
shaft seal must be connected to a barrier gas line.
Connection to a re-lubrication device (grease injector) is
prohibited
13.3.3 Labyrinth seal
1
2
3
1 Connection to grease injector or
barrier gas
2 Drainage (optional)
3 Fan housing
Fig. 13-6 Labyrinth seal
Table 13-13 Labyrinth seals
