DURABLE, NON-CORROSIVE IN-ROAD ACCESS COVERS
Heavy, noisy dangerous ductile iron manhole covers have an average life expectancy of only five years in road environments. A European study shows that, 85% of all ductile iron manhole covers on heavily trafficked routes have failed in some way*.
Ductile iron covers are also heavy and difficult to lift. To top this off this they suffer corrosion which makes opening and replacing them even tougher.
All of this comes with a cost in installation, breakages, replacements, OH&S, road closures, service interruptions, maintenance, sustainability and public liability.
These problems are only getting worse as traffic and load levels continue to increase.
Terra Firma D/E-Class in-road pit lids:
Are so durable they come with a 15-year product guarantee
Manufactured using precision moulds specifically designed to remove rocking and wear and to eliminate the risk of lids spinning out of position
Are built without a galvanic series between the cover and frame so that the problem of corrosion is eliminated
Weigh approximately one-third of cast iron
Reduce OH&S injuries to workers replacing and installing pit lids
Can bear loads of up to 400kN
Are structurally and fatigue tested – and meet European EN 124 D400 standards
Are secure and lockable, as well as retaining permanent anti-slip through their working life
At Terra Firma we work with our clients to solve the challenges of each project. See a range of road projects below where our products have solved the problems associated with old ductile iron covers .
*Research conducted by WRc