Mounting Cladded Flanges - Endress+Hauser Levelflex FMP55 Operating Instructions Manual

Mounting
22
6.1.5

Mounting cladded flanges

Note the following for cladded flanges:
• Use the same number of flange screws as the number of flange bores provided.
• Tighten the screws with the necessary torque (see Table).
• Retighten after 24 hours or after the first temperature cycle.
• Depending on the process pressure and temperature, check and retighten the
screws, where necessary, at regular intervals.
The PTFE flange cladding normally acts simultaneously as a seal between the nozzle
and the device flange.
Flange size
EN
DN40/PN40
DN50/PN16
DN50/PN40
DN80/PN16
DN80/PN40
DN100/PN16
DN100/PN40
DN150/PN16
DN150/PN40
ASME
1½"/150lbs
1½"/300lbs
2"/150lbs
2"/300lbs
3"/150lbs
3"/300lbs
4"/150lbs
4"/300lbs
6"/150lbs
6"/300lbs
JIS
10K 40A
10K 50A
10K 80A
10K 100A
10K 100A
Levelflex FMP55 FOUNDATION Fieldbus
Number of screws
4
4
4
8
8
8
8
8
8
4
4
4
8
4
8
8
8
8
12
4
4
8
8
8
Tightening torque
35 to 55 Nm
45 to 65 Nm
45 to 65 Nm
40 to 55 Nm
40 to 55 Nm
40 to 60 Nm
55 to 80 Nm
75 to 115 Nm
95 to 145 Nm
20 to 30 Nm
30 to 40 Nm
40 to 55 Nm
20 to 30 Nm
65 to 95 Nm
40 to 55 Nm
45 to 70 Nm
55 to 80 Nm
85 to 125 Nm
60 to 90 Nm
30 to 45 Nm
40 to 60 Nm
25 to 35 Nm
35 to 55 Nm
75 to 115 Nm
Endress+Hauser