Richter MNK-B Series - Manual (Page 4)

Series MNK-B, close-coupled design Page 4
9230-055-en Revision 09
TM 7345 Edition 10/2008
1.1 Tightening torques
Screws greased, tighten in diametrically opposite
sequence
Housing screws 901/3
Size No. x size Tightening torque
[mm] [DIN/ISO] [Nm]
25-25-125 8 x M 10 20
50-32-125 8 x M 10 20
25-25-160 6 x M 10 45
50-32-160 6 x M 10 45
80-50-160 6 x M 10 45
50-32-200 8 x M 12 45
65-40-200 8 x M 12 45
80-50-200 8 x M 12 45
Pipe screws, flanges to DIN/ISO
DN No. x size Tightening torque
[mm] [DIN/ISO] [Nm]
25 4 x M 12 10
32 4 x M 16 15
40 4 x M 16 20
50 4 x M 16 26
65 4 x M 16 40
80 8 x M 16 25
Pipe screws, DIN/ISO flanges drilled to ASME
DN No. x size Tightening torque
[mm] [inch] [ASME] [Nm] [in-lbs]
25 1“ 4 x ½“ 8 70
32 1¼“ 4 x ½“ 12 105
40 1½“ 4 x ½“ 15 135
50 2“ 4 x N“ 25 220
65 2½“ 4 x N“ 30 265
80 3“ 4 x N“ 45 400
1.2 Type plate, dry-running,
CE and housing markings
The stainless steel type plate is firmly riveted to the
housing:
If the operator attaches his identification, it must be
ensured that the pump matches the application in
question.
Example of type plate:
Dry-running:
CE marking:
(only for pumps to ATEX 95)
Housing identification:
The following are visible on the housing according to
DIN EN 19:
Nominal size
Rated pressure
Housing material
Manufacturer's identification
Melt number/Foundry identification
Cast date