The NW/KF Viewports consist of a one piece assembly. The viewport assembly replaces a blanking plate and
uses a standard NW/KF Centering Assembly and Clamp
for sealing (not included). The window size for NW16 and NW25 is 16mm (0.62"). For NW40 and NW50, the window
has a diameter of 38mm (1.51"). The body is made of stainless steel, the window is made of 7056 borosilicate
glass; see transmission curve below. Useful for observing inside vacuum lines or chambers. Temperature range -20°C
to 200°C (-4°F to 392°F). Viton® seal. Vacuum range down to 1x10-9 Torr.
Style A |
Style B |
| Prod #
| Description
| Unit
| Price
| Order / Quote
|
| For Sale in U.S.A. Only
|
| 92519-16
| NW/KF 16 Viewport with 7056 glass, style B, A=16mm, B=10mm
| each
| $166.80
|
|
| 92519-25
| NW/KF 25 Viewport with 7056 glass, style A, A=16mm, B=10mm
| each
| 166.80
|
|
| 92519-40
| NW/KF 40 Viewport with 7056 glass, style B, A=38mm, B=14mm
| each
| 184.00
|
|
| 92519-50
| NW/KF 50 Viewport with 7056 glass, style A, A=38mm, B=14mm
| each
| 208.00
|
|
Glass Transmission Curve
No. 7056 Borosilicate glass,
1mm thick reflection losses included.