Side/top hung Restricted friction hinge – Similar to standard friction hinges but incorporating a safety restrictor which allows the window casement to open approximately 100mm at which point a safety catch has to be manually released to allow full opening. Particularly useful in high buildings and for child safety. 13mm stack height. Each pair consists of 1 restricted hinge + 1 standard hinge. Window handing must be specified if used in a side hung position. Available in two sizes (requires screws).
To comply with BS8213-1:2004 ‘Code of Practice for Safety in Use and in Cleaning’. The unobtrusive mechanism which is integral to the hinge requires some strength and dexterity, and two hands to co-ordinate opening, giving added protection. Automatic reset ensures safe operation at all times. Windows incorporating the hinge are tested to meet BS EN 14351.1:2006 ‘Load bearing capacity of safety devices’.
Suitable for PVCu timber or aluminium windows, the Restrictor hinge comes in a wide variety of sizes. Slotted fixing holes in the base channel provide maximum sash/frame adjustment.
WHB 330 – Side or Top Hung, Capacity 22kg, Max casement width xheight 600 x 1300mm, Opening Angle 60 degrees
WHB 331 – Side or Top Hung, Capacity 24kg, Max casement width x height 700 x 1300mm, Opening Angle 60 degrees
WHB 332 – Top Hung, Capacity 24kg, Max casement width x height 1200 x 850mm, Opening Angle 52 degrees
WHB 333 – Top Hung, Capacity 35kg, Max casement width x height 1200 x 1200mm, Opening Angle 38 degrees
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