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Viewport Safety Covers

  

Torr polycarbonate viewport safety covers are designed to protect the users from flying glass in the event of a Conflat® viewport failure whilst under vacuum.

We recommend the fitting of safety covers on all viewports on your vacuum system. 
If access to a viewport is needed, the cover can be easily removed and then replaced afterwards.
No installation or removal tools are required.

Manufactured by thermo-forming 2mm thickness Makrolon® Clear 099 sheet; a clear polished UV-stabilised solid polycarbonate material with high impact resistance.
Makrolon® Clear 099 has a fire rating to UL94 V0 in the USA and to EN 13501 (B s1 d0) in Europe.

Please note – These safety covers are not suitable for bakeout and must be removed before baking the system. During bakeout, the vacuum viewport should be covered by a layer of aluminium foil to minimise temperature differentials.

Part Codes Matrix

Part Code

Description

Fits Conflat®
Flange OD

Pack Size

VPZ38-COVER

DN40CF Polycarbonate Viewport Safety Cover

70mm (2.75″)

1

VPZ64-COVER

DN64CF Polycarbonate Viewport Safety Cover

114mm (4.5″)

1

VPZ100-COVER

DN100CF Polycarbonate Viewport Safety Cover

152mm (6.0″)

1

VPZ150-COVER

DN150CF Polycarbonate Viewport Safety Cover

204mm (8.0″)

1

Maximum operating temperature = 60° Centigrade (140° Fahrenheit)