Defender Hinges

A superior self-balancing hinge range with unrivaled weather sealing providing natural ventilation on projecting top and side hung windows
Features
- Improved weather sealing and draught proofing performance from extended enclosed end cap and asymmetrical vent arm form when tested to BS 6375-1
- Lipped slider for enhanced smooth operation
- Easy friction adjustment without metal to metal contact
- Unique robust cam friction device eliminates any risk of friction screw misuse
- Slot-hole-slot vent fixing configuration for ease of adjustment and guaranteed fixing into reinforcement on PVC-u window frames
- Enclosed end cap to prevent ingress debris and provide increased cavity tolerance
- Available as high line variants for deeper profiles with cavities between 16 mm and 18 mm
- Available as a slimline variant; engineered for narrower hardware channels
- Available as a timber variant with reduced height end cap to minimize required routing.
- Drilling jigs for all sizes available to order
Specifications
- Long and reliable working life tested to 30,000 cycles
- Available in ferritic 430* as standard or austenitic 304* stainless steel for enhanced corrosion resistance
- 10 Year Guarantee (details available upon request)
Top Hung
BC Part Number | Hinge size (mm) | (In) | Stack Height (mm) | (In) | Max. Vent weight (kg) | (lbs) | Min Vent Height (mm) | (In) | Max Vent Height (mm) | (In) | Opening Angle (+/-2.5°) |
851 001 8646 | 159 | 6 | 13 | 0.51 | 10 | 22 | 150 | 5.85 | 300 | 11.70 | 50° |
851 002 8646 | 209 | 8 | 13 | 0.51 | 12 | 26 | 200 | 7.80 | 350 | 13.65 | 65° |
851 003 8646 | 259 | 10 | 13 | 0.51 | 16 | 35 | 275 | 10.73 | 400 | 15.60 | 80° |
851 004 8646 | 310 | 12 | 13 | 0.51 | 20 | 44 | 350 | 13.65 | 550 | 21.45 | 80° |
851 005 8646 | 412 | 16 | 13 | 0.51 | 21 | 46 | 500 | 19.50 | 780 | 30.42 | 80° |
851 006 8646 | 513 | 20 | 13 | 0.51 | 26 | 57 | 700 | 27.30 | 1100 | 42.90 | 50° |
851 007 8646 | 615 | 24 | 13 | 0.51 | 40 | 88 | 850 | 33.15 | 1300 | 50.70 | 37.5° |
Side Hung
BC Part Number | Hinge size (mm) | (In) | Stack Height (mm) | (In) | Max. Vent weight (kg) | (lbs) | Min Vent Height (mm) | (In) | Max Vent Height (mm) | (In) | Opening Angle (+/-2.5°) |
852 001 8646 | 310 | 12 | 13 | 0.51 | 22 | 48 | 300 | 11.70 | 600 | 23.40 | 60° |
852 003 8646 | 412 | 16 | 13 | 0.51 | 24 | 53 | 400 | 15.60 | 700 | 27.30 | 60° |