Richter MNK Series - Manual (Page 4)

Series MNK
Page 4
9230-050-en Revision 11
TM 7903 Edition 07/2010
Sizes:
Group 1.1 Group 1.2 Group 1.3 Group 2
25-25-125 25-25-160 50-32-200 80-50-250
50-32-125 50-32-160 65-40-200 125-80-200
80-50-160 80-50-200 125-100-200
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
80-50-250 8 x M 12 60
125-80-200 8 x M 12 60
125-100-200 8 x M 12 60
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
100 8 x M 16 35
125 8 x M 16 45
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 P“ 25 220
65 2½“ 4 x P“ 30 265
80 3“ 4 x P“ 45 400
100 4“ 8 x P“ 35 310
125 5“ 8 x ¾“ 55 485
1.2 Type plate, dry-running, ATEX-
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:
ATEX marking:
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
1.3 Spare parts
Spare parts for two years of continuous operation in
accordance with DIN 24296 and in consultation with
the manufacturer