2
INSTALLATION
12
OPTIFLUX 1000
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10/2011 - 7309832300 - QS OPTIFLUX 1000 R03 en
2.7 Torques and pressures
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.
EN 1092-1
ASME B 16.5
Figure 2-15: Tightening of bolts
Nominal size
Pipe flanges
Pressure rating
[bar]
Max. torque
[Nm]
Flange size
Pressure rating
DN10
DN15
PN 16/40
16
16
DN15
DN15
PN 16/40
16
16
DN25
DN25
PN 16/40
16
16
DN40
DN40
PN 16/40
16
25
DN50
DN50
PN 16/40
16
45
DN80
DN80
PN 16/40
16
25
DN100
DN100
PN 16/40
16
33
DN150
DN150
PN 16/40
16
82
Nominal size
Pipe flanges
Pressure rating
[psig]
Max. torque
[Nm]
Flange size
Pressure rating
3/8"
1/2"
150/300 lb
230
16
1/2"
1/2"
150/300 lb
230
16
1"
1"
150/300 lb
230
15
1 1/2"
1 1/2"
150/300 lb
230
25
2"
2"
150/300 lb
230
45
3"
3"
150 lb
230
56
3"
3"
300 lb
230
28
4"
4"
150/300 lb
230
36
6"
6"
150 lb
230
100
6"
6"
300 lb
230
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