Home > Companies > Lorient Polyproducts Ltd > Fire Resisting Wide Angle Door Viewer

A one-way viewer which allows occupants to see and identify callers. The viewer is supplied with an integral intumescent liner. Tests have shown the viewer can be fitted to 30 minute fire resistant doors without compromising fire safety.


  • Allows callers to be seen and identified without opening the door.
  • Projects an image of the caller onto an etched glass screen which can be easily viewed from a convenient distance. It is not necessary to have the eye so close to the viewer that there is a risk of penetration from sharp objects.
  • Allows occupants to see out but does not allow callers to see in.
  • Provides fire resistance of 30 minutes when fitted to full size door assemblies and tested in accordance with BS 476-22.
  • A wide viewing angle of 160°.

Related literature

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Standard product features

Diameter of hole in door:

37 mm.

NBS Specification

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This product is associated with the following NBS Create clause:
45-25-38/360 Security viewers

Product specification

An important note about specifying



Lorient Polyproducts Ltd


+44 (0)1626 834252

Product reference

Fire Resisting Wide Angle Door Viewer Ref: LRJ3745



Manufacturer details

Endeavour House,
Fairfax Road,
Heathfield Industrial Estate,
Newton Abbot,
Devon, TQ12 6UD
Tel +44 (0)1626 834252
Fax +44 (0)1626 833166
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