Installation
34 300855170_002_C8 - 08/2021 - © Leybold
Fig. 3.6 Mounting the ISO-F high vacuum flange
ISO-F flange connection with clearance hole
ISO-F flange connection with blind hole thread
The fastening torque levels apply
to lubricated threads.
TURBOVAC 1350/1450 i
Flange DN 200 ISO-F DN 250 ISO-F
Number of bolts 12 x M10x50
Minimum bolt strength,
yield strength
> 640 N/mm
2
Bolt quality 8.8
Fastening torque 35
+5
Nm
Nut
ISO-F flange
Vacuum sealing disk consisting
of centering ring and O-ring
with outer support ring
ISO-F flange
Bolt
14 mm
35 mm
TURBOVAC 1350/1450 i
Flange DN 200 ISO-F DN 250 ISO-F
Number of bolts 12 x M10x35
Minimum bolt strength,
yield strength
> 640 N/mm
2
Bolt quality 8.8
Fastening torque 35
+5
Nm