VBH Window Concealed Restrictor UPVC Casement Safety Catch Non Cable Vent

An excellent single handed operation window restrictor; there are no keys required and the device automatically re-engages when the window is closed. This restrictor fits inline with your friction hinges. It's fully concealed so there are no unsightly attachments on the main surface of the window. The VBH Restrictor is designed to give approx 25mm restricted opening on frames up to 1200mm square. It automatically re-engages when the sash is closed and is non-key locking for emergency escape in the event of a fire.

Features:

• Sash opens to approx. 25mm for ventilation
• Non key operated for fire egress
• Automatic re-engagement controlled safety
• Stainless Steel
• Can be fitted to existing windows
• Non profile specific - fits most systems
• Handed - Left & Right hand versions
• Fixing screws are included (we supply 25mm screws as standard, please check that the screw length is not too long for your window sash to avoid any possibility of cracking the glass)

What's in the pack?

1 x VBH Casement Window Restrictor Body

1 x Pin catch

4 x Fixing Screws

N.B. We supply 25mm screws as standard, please check that the screw length is not too long for your window sash to avoid any possibility of cracking the glass

Dimensions:

Pin catch - Length: 40mm x Width: 16mm

Restrictor - Length: 89mm x Width: 15.5mm

What do I need to check before ordering a VBH restrictor?

How do I know which size Striker Pin I need?

There are 4 versions of this restrictor striker post that fits to the frame: 9.5mm, 10.5mm, 11.5mm & 14.5mm. You need to know that the pin on the striker plate is small enough to allow the window to close but protrudes enough for the restrictor catch to latch over. Open the window just far enough to slip a ruler or tape measure into the groove of the frame where the window hinge sits. Measure to the edge of the sash with the window just open, this is often called the 'Stack Height' (please refer to the images in the gallery).

Left or Right handed?

This is nice and simple! When viewed from the inside decide which side of the window you will be placing your restrictor on and order the correct item following the instructions below.

Side Hung Windows: If the window hinges are fixed to the top and bottom your window is side hung. Now check which side your handle is on, if it is the right hand side - order a left hand restrictor; left hand side - order a right hand restrictor.

Top Hung Windows: For top hung windows where the handle is at the bottom, you have the choice of fitting either a left or right hand restrictor. (See images in gallery)

Window Profile Pin Height Guide:

Aluplast - 10.5mm; Deceuninck 2500 - 11.5mm; Deceuninck 2800 - 11.5mm; Duraflex Diamond - 11.5mm; Eurocell NBC 60 - 9.5mm; Eurocell logic 70 - 13.5mm; HW Systems - 16.5mm; K2 Rennaisance 70 -10.5mm; KBE Mk5 - 10.5mm; KBE70 - 14.5mm; Kommerling - 14.5mm; Rehau all profiles - 14.5mm.