Inclusions max 0.03mm2 /100cm3 (class 0)
Specifications
- Vacuum Leak Rate UHV <5x10-10 mbar l/s
 - Size or DN DN40CF (2 ¾” OD flange)
 - Compliance ISO 3669:2017
 - Vacuum Seal Annealed Cu Gasket
 - Body Material Stainless Steel 304
 - Temperature Range -100°C to 200°C
 - Inside Diameter 35mm
 - Flatness λ/4 @632nm
 - Coating Broadband AR Coating
 - Parallelism <10 arc sec
 - Surface Finish 20/10 Scratch/Dig
 - Optical Material Fused Silica grade A, 3D
 
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