7 Servicing/Maintenance
52 of 72
Sewatec (60 Hz)
7.5.3.1 Installing the bellows-type mechanical seal
210
163
433.02
515 / 932.03
433.01
330
412.15 /
412.11
412.04 /
412.35
Fig. 23:
Installing the mechanical seals
ü
The shaft and rolling element bearings have been properly installed in the
bearing bracket.
1.
Slide drive-end mechanical seal 433.01 onto shaft 210 and secure it with locking
ring 515 or circlip 932.03.
2.
Insert O-rings 412.04/412.35 and 412.15/412.11 into discharge cover 163, and
press them into bearing bracket 330 as far as they will go.
3.
Slide pump-end mechanical seal 433.02 onto shaft 210.
For special mechanical seals with covered spring, tighten the socket head cap screw
at the rotating assembly before fitting the impeller. Observe installation dimension
"A".
A
Fig. 24:
Installation dimension "A"
Table 21:
Installation dimension "A"
Size
Impeller type
Installation dimension "A"
[inch]
[mm]
050 - 215
F
1
1
/
8
29,0
050 - 216
F
1
1
/
8
29,0
050 - 250
F, K
1
1
/
8
29,0
050 - 251
F, K
1
3
/
16
38,5
065 - 215
F
1
1
/
8
29,0
065 - 216
E
1
3
/
16
38,5
065 - 217
F
1
1
/
8
29,0
065 - 250
F, K
1
1
/
8
29,0
065 - 253
F
1
3
/
16
38,5
080 - 215
F
1
1
/
8
29,0