Manhole Covers > Highways >
DM 6
The DM6 is our rectangular offering for the D400 range with a clear opening of 600x700mm and can be used where there is high speed traffic, specifically for Group 4 applications as defined in the EN124:1994 standards. All the D400 range has been designed to resist the eccentric and horizontal forces that can rotated them and cause displacement of the cover. The DR range of covers will not spin or become dislodged from its frame as a result of traffic movement.
Personalisation of the covers can be added using logos. In addition the covers and frames can be made in different colours. All our composite D400 frames have a depth of 150mm, which is the minimum depth that SSC recommends for D400 covers. The D400 range can be supplied with or without a lock and can be made watertight using our specifically designed seal. It can also be retrofitted.
The DM6 has a uni-directional tread pattern to improve its anti-skid properties and like the DR range will not twist or dislodge in its frame. It can be made watertight and can be supplied with our without a lock
The Benefits of a Structural Science composite cover over traditional covers.
The DM6 is our rectangular offering for the D400 range with a clear opening of 600x700mm and can be used where there is high speed traffic, specifically for Group 4 applications as defined in the EN124:1994 standards. All the D400 range has been designed to resist the eccentric and horizontal forces that can rotated them and cause displacement of the cover. The DR range of covers will not spin or become dislodged from its frame as a result of traffic movement.
Personalisation of the covers can be added using logos. In addition the covers and frames can be made in different colours. All our composite D400 frames have a depth of 150mm, which is the minimum depth that SSC recommends for D400 covers. The D400 range can be supplied with or without a lock and can be made watertight using our specifically designed seal. It can also be retrofitted.
The DM6 has a uni-directional tread pattern to improve its anti-skid properties and like the DR range will not twist or dislodge in its frame. It can be made watertight and can be supplied with our without a lock
The Benefits of a Structural Science composite cover over traditional covers.
- High structural performance
- Extended working life
- Permanent anti-slip
- Secure and lockable
- Injury free removal
- Reduced maintenance programmes
- Sealing (optional)
- Ventable
- Transparent to radio waves
- Non-corrosive
- Electrically non-conductive
- Client design service
- Petrol forecourts
- Highways
Cover Specifications
| Load Rating | EN124:1994 Class D400 |
| Clear Opening | 600 mm x 700 mm |
| External dimensions | 668 mm x 768 mm |
| Skid resistance (wet polishes) | PSRV 60 |
| Weight | 31 Kg (68.3 lbs) |
| Lifting points | Single key housing |
| Tread depth | Tread depth complies with EN124:1994 Class D400 |
| Tread type | Embedded aggregate |
| Wear indicators | Two moulded |
| Markings | Week, year and location of manufacture moulded into underside of cover. Cover size, weight on the top surface. |
| Corrosion / chemical resistance | All component parts are resistant to chemical attack, diesel, petrol, salt and water or a combination of the above over the lifespan of the cover. Surface discolouration is acceptable in service |
| Combustion properties | All component parts do not support combustion. Products of combustion do not contain harmful chemicals (eg bromides). |
| Sealed | Yes (optional – can be retro-fitted) |
| Vented | Available on request |
| Carbon footprint | Low |
| Material | Advanced fibre glass composite |
| Client logo | Can be provided on top surface |
| Security features | Available on request |
Frame specification
| Load Rating | EN124:1994 Class D400 |
| Clear Opening | 600 mm X 700 mm |
| Weight | 15.5 Kg (34.2 lbs) |
| External dimensions | 800 mm x 900 mm – 150 mm Deep |
| Material | Advanced fibre glass composite |
| Security | Designed to accept optional bolting system |
| Installation | See installation page here |
Designs and specifications are subject to alteration, so that continuous improvement can be undertaken
