Edwards nEXT730 - Figure 31 Mounting High Vacuum CF Flange Connection with Clearance Hole

B8J200880_E - Installation
Page 67
Figure 31 Mounting high vacuum CF flange connection with clearance hole
1. Copper gasket 2. Bolt with washer and nut
3. Pump housing with CF flange
TURBOVAC
730/930/1230
Flange
DN 160 CF
DN 200 CF
Number of bolts
20 x M8
24 x M8
Minimum bolt strength, yield strength
> 450 N/mm
2
Recommended bolts - ISO 4014
L1
M8x55
44
M8x60
49
Bolt quality
stainless steel bolts
8.8 or
A2(A4)-70
Fastening torque
15
+2
Nm
The fastening torque levels apply to lubricated threads.