Page 189 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

O SECURE LUBRICATION

Liquid from the casing flows between
the rear casing and the magnet lining
which prevents clogging. The fluid is
then forced to flow to the rear bushing
then through the shaft to the front
bushing. This flow guarantees perfect
lubrication for the bushing.

G) LONG LIFE THRUST RING

The thrust ring is connected to the
magnet not to the impeller, which
reduces its rotating velocity. The )>
lower velocity Increases the life "O
"Q.
of the thrust ring. 16"
a.
"ti
9 NO ADHESIVE :...------ a
0
All of the bushings as well as the liner lR
ring and thrust ring are not attached by (/)
adhesives. Thus the parts are easily 0
(D
replaced and the parts are free from co·
(/)
any weakness of the adhesive. ::::,
o'
....
o
:::r
(D
3
s:
!!!..
Ill
::::,
a.
"ti
�
Standard materials: other materials available depei ldent upon application. a
0
No. Part Name Material :::r
(D
3
1 Liner Ring Carbon-filled PTFE er
2 Impeller PVDF (KYNAR) •• !!!..
"ti
3 casing PVDF (KYNAR) -
�
4 Bushing Plate PVDF (KYNAR) (/)
5 Front Bushing Carbon-filled PTFE

6 Thrust Ring CERAMIC
7 RearCasing Carbon-filled PVDF
8 OUter Magnet
9 Inner Magnet

10 Shah CERAMIC
11 Rear Bushing Carbon-filled PTFE
12 ·o· Ring VITON Figure 3-1A. Sealless Magnetic Drive Centrifugal Pump, no seals, no leakage, no coupling. Chemical
''Ky,wlsa,.--ol....._Cc,p. resistance depends on materials of construction. See Table 3-2. (By pennission, LaBour Pump Co.)