DR90

Manhole covers for highways

The DR90 is one of the largest D400 product we currently manufacture; it has a clear opening diameter of 900mm and can be used in Class D400 locations according to EN124-2015 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 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. It can also be retrofitted.

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 DR90 is perfect for:

Petrol forecourts
Highways

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Description

DR90 – cover specifications

Load Rating	EN124:2015 Class D400
Clear Opening	900mm Diameter (35 7/16″)
External dimensions	962mm Diameter (37 7/8″)
Skid resistance (wet polishes)	PSRV 60
Weight	46kg (101.4lb)
Lifting points	Single key housing (also available with pry points
Tread depth	Tread depth complies with EN124:2015
Tread type	Embedded aggregate
Wear indicators	Four moulded
Markings	Week, year and location of manufacture 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	No
Carbon footprint	Low
Material	Advanced fibre glass composite
Client logo	Can be provided on top surface
Security features	Available on request

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

Frame specification

Load Rating	EN124:2015 Class D400
Clear Opening	900mm Diameter (35 7/16″)
Weight	15kg (33.1lb)
External dimensions	1100mm diameter (43 5/16″)
Material	Advanced fibre glass composite
Security	Designed too accept optional bolting system
Installation	See installation page