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CD 534: Chamber Tops and Gully Tops for Road Drainage and Services, now at version 0.2.0. is here Find out more
A QUALITY ABOVE THE REST Unite™ manhole coversUsing the very latest tools and software, the Unite range of manhole covers have been engineered for an extremely long life which in some instances has exceeded 20 years. Key to Unite’s longevity is minimising seat wear between covers and frames. The range has the stiffest cover structure in its class and on top of this, seating which is less vulnerable to any movement caused by covers flexing. We're so confident in Unite's performance, it's available with a 10 year warranty*. 
Create an installation that lastsSpecification clausesDownload and use our specification clauses within project documentation to reference Unite and Highway product ranges for ironwork installations. These documents provide clear guidance to support specification and product selection during project planning. Incorporating these clauses within specifications helps provide consistency in product selection and installation approach across projects involving ductile iron access covers and frames. 
> 1,500 Annual Average Daily Traffic (AADT)?With the introduction of CD 534 there were several key changes. This includes the requirement for E600 manhole covers to be installed in place of D400 covers where the Annual Average Daily Traffic (AADT) of light goods vehicles travelled on a road is greater than 1,500 in each direction. As a "rule of thumb", most A roads will have an annual average daily traffic number over 1,500 light goods vehicles. Full traffic data can be found for many locations around the UK on the Government website. 
Unite 10 year warrantyWhen installed with either Wrekin UniPak® rapid-set polymer resin bedding mortar, or Instarmac Envirobed® CD534 flowable bedding mortar, the Unite range is available with a 10-year product warranty*. Due to its design and overwhelming success in the local authority and utilities sector, Unite is the proven choice for strength and longevity for highway ironwork installations. View further warranty information * Subject to terms and conditions 
Universal beamA strength above the restUnite's high rigidity support beams, based on 'Universal Beam' otherwise known as I-beam technology, result in lower seat wear, boosted longevity and lighter covers. Developed using computer modelling and testing, this technology, incorporated in bridge and building construction, offers maximum strength and stiffness, dissipating the effects of forces exerted from high volumes of traffic. It also ensures that wear of cover seating is minimised (where the cover meets the frame), which is a common cause of failure in many rival covers. This all combines to provide the longest service life possible for the whole structure. 
Bedding material interlockMortar ‘gripper’ systemUnites flange surface provides a textured finish for bedding mortar to adhere to and the holes allow for interlocking between both sides. This will enable Unite to utilise the mechanical properties of bedding mortar, not just its adhesive characteristics. The bevelled frame edge as standard, prevents sharp edges from cutting into and breaking mortar away over time, as vibrations from traffic are transferred into the foundation. These mortar-sympathetic, and design features, allow Unite installations to stand the test of time in extreme environments. 
Large cover seating areaIncrease your asset lifeCover seating wear has been attributed as a major reason for failed manhole covers, which can lead to rocking, unwanted noise and eventually, failure. To further increase the lifespan of our Unite range, we have included a larger cover seating area. This increases the resistance to general wear by providing a large interface between covers and frames. In addition, we seat our covers as high up the frame as possible. This minimises frame movement, which otherwise would be transferred through the frame to the flange and bedding mortar, causing premature failures. 
Potholes: More than a surface issuePOTHOLES - MORE THAN A SURFACE ISSUEHelping to find solutions to the UK's pothole problemPotholes across the UK’s road and highway network are a real problem. But did you know ironwork specification and selection can affect and even increase the likelihood of a pothole forming? Our new report explores;
How much can I save?Ironwork replacement usually takes around 3 hours*. Studies show that the 2,000 users per hour of A-roads are delayed by an average of 4 minutes in roadworks**. This loss of earnings and productivity equates to over £3,000 per hour. The savings to society from avoiding a 3-hour unnecessary manhole replacement are at least £9,000, and it reduces associated carbon emissions, noise polution and waste.
*Based on independent analysis commissioned by a major water utility. 
Built to respond to flood riskSealAble compatibleSurface water entering foul-only networks is a hidden but significant issue. Even shallow ponding over a standard manhole cover can introduce flows large enough to overwhelm pumping stations and increase unnecessary treatment. 
A quality above the restUnite gully grates also availableOur premium Unite range also includes D400 gully grates. Unite gully grates offer a new way of thinking, with cutting edge design and are packed full of proven features. This package combines deliver a super long-life with the lowest whole-life cost of any D400 gully grate available today. 
Product comparisonFind the right range for youOur manhole cover comparison chart gives you a detailed overview of which features, options and accessories are available for each product range. The tool provides information on our three primary iron ranges; Tristar, Highway and Unite, making it easy to find the best solution for your project. Unite™ range accessories
Contact usWhether you are looking for live project support, or are in the initial stages of specification, we are always on hand and happy to help. | |||||||||||||||||||||
