Edwards nEXT730 - Figure 28 Mounting High Vacuum Flange ISO-K Flange at ISO-F Flange with Collar Flange

B8J200880_E - Installation
Page 64
Figure 28 Mounting high vacuum flange ISO-K flange at ISO-F flange with collar flange
1. Outer ring
2.
O-ring
3. Centering ring
4.
Retaining ring
5. Collar flange
6.
Bolt with washer
7. Pump housing with ISO-K flange
nEXT
730/930
1230
Flange
DN 160 ISO-K
DN 200 ISO-K
DN 200 ISO-K
Number of bolts
8 x M10
12 x M10
12 x M10
Minimum bolt strength, yield
strength
> 640 N/mm
2
Minimum screw in depth L2
for steel
for aluminium
L3
13 mm
18 mm
23 mm
Recommended bolts - ISO 4014
for steel flanges
for aluminium flanges
M10x40
M10x45
Bolt quality
8.8
Fastening torque
35
+5
Nm
The fastening torque levels apply to lubricated threads.