DM9

Manhole covers for highways

The DM9 is a new, longer rectangular D400 cover with a clear opening of 600x900mm. The DM9 is suitable for all DM400 locations according to EN124-2015 standards.

Personalisation of the covers can be added using logos. Additionally, 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 ThruBeam 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.

The DM9 has a flat, high-grip tread pattern giving it standout anti-skid properties. It can be made watertight and can be supplied with or without a lock.

The Benefits of a ThruBeam 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)
Transparent to radio waves
Non-corrosive
Electrically non-conductive
Client design service

The DM9 is perfect for:

Petrol forecourts
Highways

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Description

DR90 – cover specifications

Load Rating	EN124:2015 Class D400
Clear Opening	600 x 900mm (23 ⁵/₈” x 35 ⁷/₁₆“)
External dimensions	668 x 968mm x 127mm (26 ⁵/₁₆” x 38 ¹/₈” x 5″)
Skid resistance (wet polishes)	PSRV 60
Weight	45kg (99.2lb) Combined weight with frame 57kg (106.955lb)
Lifting points
Tread depth	Tread depth complies with EN124:2015
Tread type	Embedded aggregate – uni-directional
Wear indicators	Four moulded
Markings	Month, year and location of manufacture on the underside of cover. Cover class and 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 (e.g. bromides)
Sealed	Yes (optional – can be retro-fitted)
Vented	No
Carbon footprint	Low
Material	Advanced fibre glass composite
Client logo	Can be provided on top surface
Security features	Lock and security plug (lock cannot be left open on replacement of cover)

Designs and specifications are subject to alteration, so that continuous improvement can be undertaken

Frame specification

Load Rating	EN124:2015 Class D400
Clear Opening	DM9 – 600 x 900mm (23 ⁵/₈” x 35 ⁷/₁₆“)
Weight	DM9 – 15.5kg (34.2lb)
External dimensions	DM9 – 800 x 1100mm x 150mm (31 ¹/₂” x 43 ⁵/₁₆” x 5 ⁷/₈“)
Material	Advanced fibre glass composite
Security
Installation	Provided in full as a separate document