User's Guide _______________________________________________________________________ 
30  ___________________________________________________________________ M210865EN-H 
NW40 Mounting Flange 
An NW40 mounting flange (Vaisala order code 225220SP) is available 
for installations through thin chamber walls or into vacuum processes. 
The flange is compatible with ISO G1/2" threaded transmitters. 
NOTE 
Vaisala does not provide the flange counterpart, only the attachment for 
DMT152.
 
 
0908-085 
Figure 19  NW40 Mounting Flange 
 
  1306-176 
Figure 20  NW40 Mounting Flange Dimensions 
30
17.8
41.2
53
55
1
3.5
13
G1/2    ISO228
14
33
21