Series 111
10/24
Edition 03.02.2021
984134EA
5.
Mount the four screws (3) according to «Figure 4-1» on page 10, evenly in crosswise order until
the seal touches the sealing surface.
6.
Tighten all screws with the torques appropriate for their property classes.
1 Flange A
2 Flange B
3 Screws
Figure 4-1
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
2000
448
80
59
100
4
2500
560
100
74
160
6
3000
672
150
110
200
8
3000
672
150
110
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
FA
M
