Micropilot FMR53, FMR54 FOUNDATION Fieldbus
Mounting
Hauser
13
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
Number of screws
Tightening torque
EN
DN50 PN10/16
4
45 to 65 Nm
DN50 PN25/40
4
45 to 65 Nm
DN80 PN10/16
8
40 to 55 Nm
DN80 PN25/40
8
40 to 55 Nm
DN100 PN10/16
8
40 to 60 Nm
DN100 PN25/40
8
55 to 80 Nm
DN150 PN10/16
8
75 to 115 Nm
ASME
NPS 2" Cl.150
4
40 to 55 Nm
NPS 2" Cl.300
8
20 to 30 Nm
NPS 3" Cl.150
4
65 to 95 Nm
NPS 3" Cl.300
8
40 to 55 Nm
NPS 4" Cl.150
8
45 to 70 Nm
NPS 4" Cl.300
8
55 to 80 Nm
NPS 6" Cl.150
8
85 to 125 Nm
NPS 6" Cl.300
12
60 to 90 Nm
NPS 8" Cl.150
8
115 to 170 Nm
NPS 8" Cl.300
12
90 to 135 Nm
JIS
10K 50A
4
40 to 60 Nm
10K 80A
8
25 to 35 Nm
10K 100A
8
35 to 55 Nm
10K 150A
8
75 to 115 Nm
