KROHNE OPTIFLUX 5000 Flange Quickstart EN - Manual (Page 13)

INSTALLATION
2
13
OPTIFLUX 5000
www.krohne.com 04/2011 - 7309872300 - QS OPTIFLUX 5000 FL R03 en
ASME B 16.5
DN150...300
Tighten the bolts:
• Step 1: approx. 50% of max. torque
• Step 2: approx. 80% of max. torque
• Step 3: 100% of max. torque given in table
EN 1092-1
ASME B 16.5
Nominal size
[inch]
Flange class
[lb]
Bolts Max. torque
[ftlb]
1/2 300 4 Ч 1/2" 40
1 150 / 300 4 Ч 1/2" 40
1 1/2 150 / 300 4 Ч 1/2" 40
2 150 / 300 4 Ч 5/8" 97
3 150 / 300 4 Ч 5/8" 97
4 150 8 Ч 5/8" 97
Nominal size
DN [mm]
Pressure
rating
Bolts Max. torque
[Nm]
150 PN 16 8 × M 20 1
200 PN 10 8 × M 20 1
250 PN 10 12 × M 20 1
300 PN 10 12 x M 20 1
1 Max. torque depends on the gaskets used by the end-user.
Nominal size
[inch]
Flange class
[lb]
Bolts Max. torque
[ftlb]
6 150 8 Ч 3/4" 1
8 150 8 Ч 3/4" 1
10 150 12 Ч 7/8" 1
12 150 12 x 7/8" 1
1 Max. torque depends on the gaskets used by the end-user.