Mounting Cladded Flanges; Installation In Vessel (Free Space) - Endress+Hauser Micropilot FMR51 Technical Information

Micropilot FMR51, FMR52

Mounting cladded flanges

Installation in vessel (free
space)
Endress+Hauser
• 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.
Usually, the PTFE flange cladding also serves as a seal between the nozzle and the device
flange.
Flange size
EN
DN50/PN16
DN80/PN16
DN100/PN16
DN150/PN16
ASME
2"/150lbs
3"/150lbs
4"/150lbs
6"/150lbs
JIS
10K 50A
10K 80A
10K 100A
10K 100A
Horn antenna (FMR51)
Alignment
• Align the antenna vertically to the product surface.
The maximum range may be reduced if the horn antenna is not vertically aligned.
• A marking at the flange (somewhere between the flange holes) or the boss enables alignment of
the antenna. This marking must be aligned towards the tank wall as well as possible.
Number of screws
4
8
8
8
4
4
8
8
4
8
8
8
Recommended torque [Nm]
minimum maximum
45 65
40 55
40 60
75 115
40 55
65 95
45 70
85 125
40 60
25 35
35 55
75 115
41