List of contents, Relevant documents, 1 technical data – Richter MNK Series User Manual
Page 2: 1 intended use, 1technical data, Series mnk, mnk-b

Series MNK, MNK-B,
external flushing
Page 2
9230-060-en
Revision 02
TM 6778
Edition 05/2007
List of Contents
Intended use................................................ 2
2 Safety, transport, storage and disposal
Safety regulations........................................ 4
Initial commissioning ................................... 4
Max. flushing medium temperature
Operation..................................................... 6
Shutdown..................................................... 6
5.4
Improper operations and their 
consequences (examples) .......................... 7
Notes on dismantling................................... 7
Dismantling.................................................. 7
Assembly ..................................................... 8
Legend......................................................... 8
MNK with external flushing.......................... 9
Relevant documents
This supplementary installation and operating 
manual is only valid in conjunction with these installa-
tion and operating manuals: 
 
MNK long life grease lubrication
9230-050-en
MNK oil bath lubrication
9230-051-en
MNK-B close-coupled design
9230-055-en
1
Technical data
Manufacturer :
Richter Chemie-Technik GmbH 
Otto-Schott-Str. 2 
D-47906 Kempen 
Telephone: +49 (0) 2152 146-0 
Fax: 
+49 (0) 2152 146-190
E-Mail:
Internet:
All technical data can be found in the installation and 
operating manuals for the relevant pumps MNK or 
MNK-B. 
Designation:
External flushing unit of single-stage, plastic-lined 
magnetic drive chemical centrifugal pumps, series 
MNK, permanent grease or oil bath lubrication, and 
MNK-B close-coupled design. 
Heavy-duty horizontal design, sealless, eddy-current-
free 
Technical specifications to ISO 15783 and DIN ISO 
5199 
Face to face according to ISO 2858 / DIN EN 22858 
Flange connecting dimensions:
DIN EN1092-2, shape B (ISO 7005-2, shape B) PN 16 
or flanges drilled to ASME 16.5, Class 150 
ATEX 95 Directive 94/9/EC 
Machine Directive 98/37/EC 
Admissible ambient conditions for pumps 
acc. to directive 94/9/ EG (ATEX 95) : 
Ambient temperature range: - 20 °C to + 40 °C 
(higher temperature after consulting the manufacturer) 
Ambient pressure range: 0,8 ba
rabs
to 1,1 bar
abs
.
1.1 Intended use
Richter pumps of the series MNK, MNK-B are plastic-
lined, magnetic drive centrifugal pumps for the leak-
free conveyance of aggressive, toxic, pure and in-
flammable liquids. 
The pump is equipped with a permanent magnet, syn-
chronous drive. 
