Duration Restricted Friction Hinge

• Available in both top and side hung variants.
• Geometries designed and tested to ‘self-balance’ open out casement windows.
• Excellent weather sealing and draught proofing performance provided by enclosed end cap when tested to BS 6375-1.
• Colour coded end caps and outer packaging clearly denote and differentiate 13mm and 17mm stack heights for ease when manufacturing multiple systems.
• Colour coded quick release button allows the restriction to be over-ridden allowing the window to be fully opened.
• Restricted function automatically resets when the window is closed.

• 10 or 25 year Mechanical Guarantee: 10 year Mechanical Guarantee for standard Ferritic 430 Stainless Steel and 25 year Mechanical Guarantee for Austenitic 304 Stainless Steel.
• Tested to 20,000 cycles as part of BS 6375-2.
• Restriction tested to BS EN 14351.
• Compliant with BS 6375-2.
• Packaging: Duration Restricted Friction hinges for Top Hung Windows are supplied in restricted pairs consisting of a left-hand and a right-hand Hinge*.

Duration Restricted Friction hinges for Side hung Windows are supplied as handed pairs, consisting of one Restricted Friction hinge for bottom of the sash and a regular Duration friction hinge for the top. Handing is identified from inside the window, to which side hinges are fitted.