INSTALLATION
Series 140
14/43
Edition 14.07.2020
875067EA
1. Remove protective covers from body flanges.
2. Clean sealing surfaces and seals of both flanges;
see (1) and (2) according to «Figure 4-1» on page 13 .
The valve seat side is marked with the symbol «
∇
» on flange «A».
3. Lift valve to the mounting position.
4. Mount four screws (3) according to «Figure 4-1» evenly in crosswise order until the seal
touches the sealing surface.
5. Tighten all screws with the torques appropriate for their property classes.
4.2.1
Admissible forces and bending moments
Forces from evacuating the system, from the weight of other components or
from baking can lead to deformation of the valve body and to malfunction of
the valve. The stress has to be relieved by suitable means, e.g. bellows
sections.
The following forces or moments are admissible:
DN (nom. I. D.)
Axial tensile or com-
pressive force «FA»
Bending moment
«M»
mm
inch
N
lbf
Nm
lbf
∙
ft
63
2½
1960
440
78
58
80
3
2190
492
88
65
100
4
2450
560
98
72
160
6
2940
660
147
108
200
8
2940
660
147
108
250
10
3430
770
196
145
320
350
12
14
3920
880
294
217
400
16
7840
1760
980
722
If a combination of both forces («FA» and «M») occurs, the values
mentioned above are invalid. Please contact VAT for more
information.
Table 4-2
M
F
A