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Key Releasable Restrictor

Window safety restrictor

Titon’s Key Releasable Restrictor is a safety device engineered to limit the opening of window sashes to approximately 100mm.

It is specifically designed for use in situations where window openings at height pose a safety risk, particularly in environments where children or vulnerable individuals are present.

This restrictor can be temporarily released (de-restricted) to allow full window access for cleaning or maintenance purposes.

Part K of the Building Regulations states that window restrictors are legally required in buildings where individuals who are at risk – such as children or those requiring care – have access to windows situated at a height that could lead to injury. Restrictors must ensure that window openings in these settings do not exceed 100mm.

TN1132,TN1132,TN1133,TN1134,TN1135,TN1136

Features & Benefits

Four variations available: 4″, 6″, 8″ & 10″
Restricts openings to suit site requirements
Our full range of sizes enables the fabricator to control the opening distance of the sash
Easy to fit – no profile routing required
Tested in accordance with BS EN 1670 Grade 5 (highest grade corrosion resistance – 480 hours)
Can be de-restricted to allow for maintenance or cleaning
Keys available separately
Suits most cavity sizes
Can be retrofitted
Austenitic stainless steel for improved corrosion resistance
Suitable for aluminium, PVCu and Timber windows
Covered by Titon’s 10 Year Extended Mechanical Warranty.