Viewport Shutters

AccuFlex™ flexible viewport shutters offer 100% shielding for CF fitted viewports used in vacuum evaporation and coating applications.
AccuFlex™ viewport shutters offer the largest port apertures on the market today. Their unique flexible shutter design offers a full 90° shutter swing angle, when mated with CF ports having the largest standard tube diameters.
The flexible stainless steel foil shutter is designed for fast & easy replacement – for when extended coating process build-up begins to reduce shutter flexibility. See our shutter replecement kits for more information.

Features:
• Full port aperture.
• 100% coverage.
• 90° swing angle.
• Replaceable / flexible shutter.
• Edge welded metal bellows.
• UHV compatible contruction.
• Temperature rated to 250°C.
• Double sided CF flange mount.

Specifications:
Materials
Flange : 304 St.St.
Seal : Bellow

Max. Bakeout Temperature* :
CF flanged viewports : 250°C

Max. Thermal Gradient : 25°C per minute

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* – Assembly rating is reduced to that of the lowest rated component.

Shutter must be installed / mounted on a mating CF flange port that has a minimum tube size as follows:-

DN63CF    : 60.33mm