Endress+Hauser Levelflex FMP55 - Product Description; Product Design

Mounting Levelflex FMP55 HART
16 Endress+Hauser
6.1.2 Mounting cladded flanges
• Use flange screws according to the number of flange holes.
• Tighten the screws with the required torque (see table).
• Retighten the screws after 24 hours or after the first temperature cycle.
• Depending on process pressure and process temperature check and retighten the
screws at regular intervals.
Flange size Number of screws Recommended torque [Nm]
minimum maximum
EN
DN40/PN40 4 35 55
DN50/PN16 4 45 65
DN50/PN40 4 45 65
DN80/PN16 8 40 55
DN80/PN40 8 40 55
DN100/PN16 8 40 60
DN100/PN40 8 55 80
DN150/PN16 8 75 115
DN150/PN40 8 95 145
ASME
1½"/150lbs 4 20 30
1½"/300lbs 4 30 40
2"/150lbs 4 40 55
2"/300lbs 8 20 30
3"/150lbs 4 65 95
3"/300lbs 8 40 55
4"/150lbs 8 45 70
4"/300lbs 8 55 80
6"/150lbs 8 85 125
6"/300lbs 12 60 90