A QUALITY ABOVE THE REST
Unite™ manhole covers
Using 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*.
D400 VS E600
There are several advantages available when increasing the load classification from D400 to E600, including:
Frame bedding area is increased. Thanks to the unique frame design, featured in Unite, it results in a reduction in applied compression on the bedding during trafficking. This increases the longevity of the product and installation.
Stiffer covers for the same traffic loads. Unite covers provide a reduction in movement within the cover to frame contact points, this results in lower ‘seating’ wear and longer seating life.
A greater factor of safety against traffic loads.
E600 products are more likely to be more resistant to unintended traffic loads e.g. pre-service loads, such as those from tracked vehicles, which are commonly found on construction sites.
> 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 warranty
When installed with either our Unipak 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 unique design and overwhelming success in the local authority and utilities sector, Unite is the proven choice for durability and longevity for highway ironwork installations.
* Subject to terms and conditions
A strength above the rest
Unite's high rigidity support beams, based on 'Universal Beam' technology, result in lower seat wear, improved longevity and lighter covers.
Developed using advanced 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 interlock
Mortar ‘gripper’ system
Unites 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 built-in 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 unique, mortar-sympathetic, and advanced design features, allow Unite installations to stand the test of time in extreme environments.
Large cover seating area
Increase your asset life
Cover 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 ISSUE
Helping local authorities find solutions to the UK's pothole problem
Potholes 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 typically takes around 3 hours*. Studies show 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 saving to society of not having a 3-hour long unnecessary manhole replacement is at least £9,000 and cuts the associated noise, dust and waste.
*Based on independent analysis commissioned by a major water utility.
A quality above the rest
Unite gully grates also available
Our 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.
Find the right range for you
Our 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
Whether you are looking for live project support, or are in the initial stages of specification, we are always on hand and happy to help.