Richter V&A RMI Series, Инструкция по установке и эксплуатации

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Series RMI
Page 10
9430-050-en Revision 00
TM 9886 Edition 03/2018
4 Product description
The housing dimensions, nominal ratings and tech-
nical requirements of the pump series RMI corre-
spond to ISO 2858 / DIN EN 22858 / ISO 15783 / DIN
ISO 5199. The technical requirements of the VDMA
24279 are satisfied
The sectional drawing shows the design of the pump.
See Section 9 .
All components which come into contact with the me-
dium are either plastic-lined or made of other resistant
materials, e.g. silicon carbide.
The housing
100 consists of a metallic shell with a
plastic lining.
The shaft spider
338
is pressed into the housing and
secured with the anti-torsion inserts 566/1 .
The two bearing bushes 545 are pressed in from the
bearing pedestal side and secured with the anti-
torsion insert 566/2 .
The distance ring 504/1 is inserted in-between.
The can 159 is made of high-resistance CFK (carbon
fibre composite material). It is protected against the
corrosive medium by a can insert 158 made of PTFE.
The thrust ring
510/3
is pressed in and locked with the
shaft 222 in a form-locking manner against twisting.
The shaft 222 is positively mounted in the can insert
158 .
The impeller 230 and the inner magnet assembly 859
are separable and thus can be exchanged inde-
pendently of one another. Both components are posi-
tively connected to one another for force transmission.
The static tightness of the pump is guaranteed by
the screw fittings of the bracket 344 and housing
100 . The bearing pedestal gasket 401 and the lips of
the can unit are jammed between both components
with the required sealing force.
Long life grease lubrication
The bearing pedestal 330 contains grease-lubricated
radial ball bearings 321/1 and 321/2 . They are
sealed on both sides.
The wavy spring washer
953/1
puts the radial ball
bearings 321 under axial pre-load.
Oil bath lubrication:
The bearing pedestal 330 contains radial ball bear-
ings 321/1 , 321/2 which are lubricated by an oil bath.
The wavy spring washer 953/1 puts the radial ball
bearings 321 under axial pre-load.
This oil bath is sealed by means of the shaft seals
421/1 , 421/2 and the cover gasket 403 .
The torque is transmitted from the drive shaft
213
through the keys
940/1
to the drive magnet assem-
bly 858 .
This is axially secured with the hex. socket screw
914/1 and the toothed lock washer 936/1 . The mag-
nets are glued in the drive magnet assembly.
In the case of a leakage of the can unit, the closed
lamella construction provides a temporary additional
protection against media leakage into the
atmosphere.
The drain hole in the lantern is closed with the plug
903/5 .
The flushing flow is guided on the outside past the
impeller assembly into the can. The flushing flow
returns to the housing through flushing bores in the
impeller assembly and through the plain bearings.
Further design details are provided in the enclosed
drawing. Additional information are provided in the
brochure and the product manual.