ITT ICM, Installation And Operating Instructions Manual

Page: 19 / 34

Installation and Operating Instructions
Model
ICM, ICMP
,
oil bath lubrication
9330-051-en
Revision 14
TM 6099 MPE/Wm
Page 10
Date 24/08/2011
4 Product description
The housing dimensions of the pump model ICM
comply with ISO 2858 / DIN EN 22858.
The technical requirements and nominal ratings of the
pump models ICM and ICMP comply with ISO 2858 /
DIN EN 22858 / ISO 15783 / DIN ISO 5199.
The sectional drawing shows the pump set-up. See
Section 9 .
The metal housing 100 has an axial suction nozzle
and radial discharge nozzle. The housing drain screw
103 permits the entire pump including the can interior
to be drained.
The impeller 230 is of closed design. The back vanes
serve to offset the axial thrust. The impeller is at-
tached to the magnet assembly shaft by an impeller
nut
231 and key 940/2 and rests against the distance
washer 551/1 .
The plain bearing pedestal 339 has flushing bores
which serve to dissipate the heat on the can and lubri-
cate the plain bearing cartridge
310 . Depending on
the pump design, connection tapped bores can be
provided on the plain bearing pedestal to permit ac-
cess to the pump interior (e.g. for monitoring devices
or external flushing).
The plain bearing cartridge 310 encapsulates all the
individual parts of the bearing system and permits the
exchange of the complete unit in one piece. It is at-
tached to the plain bearing pedestal with hex. screws
901/1 . The inner magnet assembly 859 is fitted with
permanent magnets. These magnets of the inner
magnet assembly are protected against the medium
by a corrosion-resistant metallic cover. The inner
magnet assembly and shaft are one piece.
A parallel pin 562/1 serves as an anti-torsion insert for
the plain bearing cartridge.
The inner magnet assembly accommodates axial
vanes to promote the flushing flow.
The metallic can 159 seals the pump interior against
the atmosphere to ensure it is leak-proof.
The lantern 344 is screwed against the housing with
hex. screws 901/3 and washers 554/3 . Both the hous-
ing gasket 401 and the can gasket 406 are tightly
sealed through the direct action of the bolting force.
The lantern has a safety rubbing surface which pro-
tects the can against damage from the drive magnet
assembly if the rolling bearings become defective.
The hex. screws 901/5 prevent the individual parts
from falling apart when the entire slide-in unit is being
removed from the pump housing. These screws are
not provided in some pump sizes. Instead the set-
screws
904/2 perform this function.
The bearing pedestal 330 contains radial ball bearings
321 and lubrication is provided by an oil bath. The oil
bath is sealed against the atmosphere by two rotary
shaft seals
421 and a cover gasket 403 . They are
sealed on both sides. The wavy spring washer 953/1
exerts an axial pre-load on the radial ball bearings and
rests against the rear bearing cover
361 . The torque is
transmitted to the drive magnet assembly 858 by the
key 940/1 and the drive shaft 213 .The magnets are
glued into the drive magnet assembly which is axially
secured by the hex. socket screw
914/1 .
Should the can become defective, the flat gasket
400/1 at least seals the medium against the atmos-
phere for a short period.
The flushing/cooling flow is fed into the can chamber
through the flushing bores in the plain bearing pedes-
tal. The flushing flow passes through the plain bear-
ings back into the housing. The rotating magnets gen-
erate an eddy current in the can which heats the flush-
ing/cooling flow.
Design details are provided in the sectional drawing ,
Section 9 .
Additional information is also contained in the Bro-
chure and Pricebook .