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
• Transmission 90% in visible range
• Inside Diameter 35mm
• Flatness λ/4 @632nm
• Coating BBAR 425-760
• Parallelism <10 arc sec
• Surface Finish 20-10 Scratch-dig
• Optical Material Fused Silica grade A, 3D