50mph temporary speed limit quick-fit sign face - diagram 670
This is the reflective face for a temporary 50mph speed limit, to diagram 670. It is used at roadworks where the limit is dropped to 50mph, including long-term works on dual carriageways with lane closures. The 750mm circular face is printed with RA1 engineering-grade reflective sheeting on a 3mm plastic backing, conforms to Chapter 8 and The Red Book, and is made in the UK. It is supplied as the face only - the quick-fit frame is sold separately.
Key features
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Diagram 670 - the correct face for a temporary 50mph speed limit.
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750mm circular - standard quick-fit face on a 3mm plastic backing.
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RA1 Class 1 reflective - engineering-grade reflective sheeting for clear visibility.
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Chapter 8 and Red Book - conforms to Chapter 8 and The Red Book for temporary works.
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300mm hole centres - drops straight into a quick-fit frame.
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Non-metallic - no scrap value; made in the UK, face only.
Where it is used
Fitted to a quick-fit frame at roadworks running a temporary 50mph limit:
- Long-term works on dual carriageways with lane closures
- Highway maintenance and resurfacing schemes
- Utility works on higher-speed roads
- Local authority and contractor traffic management
Fitting and compatibility
The standard face has 300mm hole centres to suit mini quick-fit frames. Check the hole centres match the frames you already have. Frames are sold separately so you can reuse one frame across different faces.
Specification
| Specification |
Detail |
| Diagram reference |
670 |
| Shape |
Circular |
| Diameter |
750mm |
| Depth |
3mm |
| Material |
Printed RA1 engineering-grade reflective on plastic backing |
| Reflectivity |
Class 1 (RA1) |
| Hole centres |
300mm |
| Compliance |
Chapter 8, The Red Book |
| Scrap value |
Non-metallic, none |
| Supplied as |
Sign face only (frame sold separately) |
| Origin |
Made in the UK |
Customisation
Faces can be made to your specification, including GRP, composite, aluminium or plastic backing and 300mm, 450mm, 750mm or 900mm fixing holes. Contact the sales team for custom requirements.