Installing/mounting
4.4 Flange bolting, Flanged encapsulated antenna only
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 01/2014, A5E32221386-AB
23
Flange bolting: recommended torque
Pressure class
Nominal pipe size
(NPS)
Number of bolts
Recommended torque
(Nm)
ASME B16.5, Class
150
2"
4
30 – 50
3"
50 – 70
4"
8
40 – 60
6"
70 – 90
EN1092-1, PN16 /
JIS B 2220, 10K
DN50/50A
4
30 – 50
DN80/80A
8
DN100/100A
DN150/150A
60 – 80