Endress+Hauser FOUNDATION Fieldbus Micropilot FMR53 Brief Operating Instructions page 13

Micropilot FMR53, FMR54 FOUNDATION Fieldbus
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
DN50 PN10/16
DN50 PN25/40
DN80 PN10/16
DN80 PN25/40
DN100 PN10/16
DN100 PN25/40
DN150 PN10/16
ASME
NPS 2" Cl.150
NPS 2" Cl.300
NPS 3" Cl.150
NPS 3" Cl.300
NPS 4" Cl.150
NPS 4" Cl.300
NPS 6" Cl.150
NPS 6" Cl.300
NPS 8" Cl.150
NPS 8" Cl.300
JIS
10K 50A
10K 80A
10K 100A
10K 150A
Endress+Hauser
Number of screws
4
4
8
8
8
8
8
4
8
4
8
8
8
8
12
8
12
4
8
8
8
Mounting
Tightening torque
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
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
115 to 170 Nm
90 to 135 Nm
40 to 60 Nm
25 to 35 Nm
35 to 55 Nm
75 to 115 Nm
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