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Viewports
Details
- Zero length glass viewport – HVB type
- For source inspection, transfer operation, optical instrumentation
- From CF16 to CF 150
- Lead disk for X-Rays protection available as an option
Technical information

Viewport type | Flange type |
---|
HVB16 | CF16 |
HVB35 | CF35 |
HVB63 | CF63 |
HVB100 | CF100 |
HVB150 | CF150 |
Viewport type | A : useful diameter (mm) |
---|
HVB16 | 13 |
HVB35 | 38 |
HVB63 | 63 |
HVB100 | 90 |
HVB150 | 135 |
Viewport type | C : Thickness (mm) |
---|
HVB16 | 7,6 |
HVB35 | 13 |
HVB63 | 17,5 |
HVB100 | 19,8 |
HVB150 | 22 |
Viewport type | α (°) |
---|
HVB16 | 54 |
HVB35 | 80 |
HVB63 | 84 |
HVB100 | 114 |
HVB150 | 130 |
Viewport type | Glass Thickness (mm) |
---|
HVB16 | 1 |
HVB35 | 3 |
HVB63 | 4 |
HVB100 | 5 |
HVB150 | 7 |
Viewport type |
Flange type |
A : useful diameter (mm) |
C : Thickness (mm) |
α (°) |
Glass Thickness (mm) |
HVB16 |
CF16 |
13 |
7,6 |
54 |
1 |
HVB35 |
CF35 |
38 |
13 |
80 |
3 |
HVB63 |
CF63 |
63 |
17,5 |
84 |
4 |
HVB100 |
CF100 |
90 |
19,8 |
114 |
5 |
HVB150 |
CF150 |
135 |
22 |
130 |
7 |
Lead glass disks options
Certain processes inside a vacuum system can generate X-Rays. These X-Rays are usually absorbed by the metal walls of the vessels but may be able to pass through a glass viewport. To protect against this hazard, we offer a range of leaded glass disks that fit into the recess on top of the viewport.
For safety reasons, we recommend that they are held in place in such a way that they cannot be removed unless the vacuum seal is broken. The lead glass disks are all 8 mm thick to accommodate a lead thickness of 1.5 mm for X-Ray sources up to 50kV.
Viewport to be equipped | Leaded disk O.D Flange (mm) |
---|
HVB 35 / CF35 | 70 |
HVB63 / CF63 | 114 |
HVB100 / CF100 | 150 |
Viewport to be equipped | Leaded disk size (inch) |
---|
HVB 35 / CF35 | 2,75 |
HVB63 / CF63 | 4,50 |
HVB100 / CF100 | 6,00 |
Viewport to be equipped | Leaded Disk Thickness (mm) |
---|
HVB 35 / CF35 | 8 |
HVB63 / CF63 | 8 |
HVB100 / CF100 | 8 |
Viewport to be equipped |
Leaded disk O.D Flange (mm) |
Leaded disk size (inch) |
Leaded Disk Thickness (mm) |
HVB 35 / CF35 |
70 |
2,75 |
8 |
HVB63 / CF63 |
114 |
4,50 |
8 |
HVB100 / CF100 |
150 |
6,00 |
8 |