Kodial (7056 Glass) Viewports
Zero length 7056 glass viewports are available in NW, ISO, and CF flange versions and feature a one-piece welded construction. Standard length 7056 glass viewports are available in DN-16, 25, 40, and 50 versions and also feature a one-piece welded construction. Glass CF flanged viewports can withstand repeated bakeout cycles up to 400°C and vacuum pressures to 10-11 Torr.
Kodial (7056 Glass) Viewports Features
- Available as NW, ISO, or CF flange with 304 stainless steel
- Standard windows are borosilicate glass
- Elastomer flange maximum bakeout temperature 200°C
- Metal seal flange maximum bakeout temperature 400°C
Nor-Cal Products, Inc dba Pfeiffer Vacuum Valves & Engineering offers a complete line of viewports for vacuum chambers with NW, ISO and CF flanges. CF flanged viewports are available with fully annealed 7056 glass or fused quartz. Special materials and coatings, such as sapphire and anti-reflective (AR) coating, are available on request. Glass provides a large distortion free viewing area at low cost. Quartz provides superior ultraviolet radiation transmission and resistance to thermal shock. Glass CF flanged viewports can withstand repeated bakeout cycles to 400°C and vacuum pressures to 10-11 Torr. Quartz CF flanged viewports should not be baked above 200°C. NW and ISO flanged viewports can withstand 200°C bakeouts and pressures to 10-9 Torr.