14 Chapter 2: Installation
WQG-10004-01 accuMAG Meter Quick Guide Software v4.1.2
2.7 Torques and pressures
Here you find the maximum pressure and torques for the flow meter. All values are theoretical and
calculated for optimum conditions and use with carbon steel flanges.
Figure 2-18: Tightening of bolts
Tightening of bolts
• Step 1: Apply approx. 50% of max. torque given in table.
• Step 2: Apply approx. 80% of max. torque given in table.
• Step 3: Apply 100% of max. torque given in table.
Table 2-1: Torque Values
Nominal
size
DN
[
mm
]
Pressur
e
r
a
t
i
n
g
Bo
lts
Max.
to
r
q
u
e
[Nm]
1
Rilsan® Hard Rubber
25 PN
16
4 x M 12 6 -
40 PN
16
4 × M 16 36 -
50 PN
16
4 × M 16 50 -
65 PN
16
4 × M 16 50 -
80 PN
16
8 × M 16 35 -
100 PN
16
8 × M 16 35 -
125 PN
16
8 × M 16 40 -
150 PN 10
/
PN 16 8 × M 20 45 -
200 PN
10
12 × M 20 45 -
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