Lorient Polyproducts UK
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Lorient Pacific Ltd
Unit 509, 5th Floor
Block A
Ming Pao Ind Ctr
18 Ka Yip Street
Chai Wan
Hong Kong
Tel: +(852) 2505 0328
Fax: +(852) 2505 0332
sales@lorienthk.com
Registered Office: Fairfax Road, Heathfield, Newton Abbot
Registered In England No. 1441058
Concealed Door Closer Kit
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Hydraulic closers concealed in the door leaf are increasingly popular - but they must not be fitted to fire resistant doors without appropriate protective measures being taken. This is because:
- they require a large portion of the door to be cut away which immediately reduces fire resistance
- many models contain flammable hydraulic oil
- the aluminium housings are likely to melt in intense heat leading to a breach
- they are made from materials which are very good heat conductors and take up much of the available door leaf thickness
Lorient intumescent protection kits overcome these problems. They consist of thin, high performance intumescent sheet, pre-cut and scored so they can be easily fitted around door closers. To further facilitate installation, the kits are self-adhesive.
Protection kits are available for the most commonly specified closers. Lorient can supply a range of closers complete with the protection kit.
When tested in accordance with BS 476 Pt. 20 it was shown that Lorient closer protection kits can provide up to 60 minutes protection, even on 44mm thickness door leaves.
The low pressure intumescent action ensures the door leaf is not split. Insulation against heat transfer is provided as soon as the intumescent material is activated.
For more information, please download the Specialized Fire Resistant Door Furniture brochure.