Stübbe C 110 Series, Руководство по эксплуатации

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Appendix
9.2 Flange installation
I
F
MD
MD1
MD1
Fig. 8 Tightening torques and immersion depth
Tightening
*1)
MD [Nm]
for the versions
d
[mm] DN
[mm] Flat sealing
ring
max. 10 bar
max. 40 °C Profile seal
max. 16 bar
O-ring
max. 16 bar
75 65 35 20 20
90 80 35 20 20
110 100 35 20 20
140 125 45 30 25
160 150
55
35 30
Tightening
*1)
MD1 [Nm]
for the version O-ring
max. 16 bar
Wafer type flange,
all sizes
20
Tab. 6 Tightening torques
1) Use torque wrench
Max. immersion depth flange screws
[mm] for the sizes Description
75
(M16) 90
(M16) 110
(M16) 140
(M16) 160
(M20)
Immersion depth
(l)
20 20 20 20 30
Tab. 7 Immersion depth flange screws
9.3 Tightening torques
Description Size Tightening
torque [Nm]
Hexagon socket
screws (MD2)
(→ Fig. 2 Layout, Page 5 ).
DN75
DN90
DN110
DN140
DN150
20
Tab. 8 Tightening torques
9.4 Operating torques
The specified values are standard values for a manually
operated ball valve under the following conditions:
– Water (H
2
O)
– Media temperature 20 ºC
Torque [Nm] for size DN
Materials
75 90 110 140 150
PVC-U /
PP / PVDF
25 40 50 50 80
Tab. 9 Operating torques
12 C 110 BA-2022.07.19 EN 300 876