Download Centre

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Installation Guide

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Installation Guide

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Detailed guidelines for the best practice installation of our modular chambers for FACTA AAA, B125, D400, FACTA E and E600 loading classification

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Detailed guidelines for the best practice installation of ductile iron manhole covers and gully grates from B125 to F900 loading classification

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Technical Specification

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Technical Specification

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Technical Specification

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Technical Specificatiion

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Technical Specificartion

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Technical Specification

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We are delighted to announce that Clark-Drain Ltd is now an accredited member of Made in Britain.  As a family business based in Peterborough, we innovate, design and manufacture the vast majority of our access and drainage solutions right here in Britain, and we are proud that we can now display the Made in Britain mark on these products. 

(A small amount of products in the Clark-Drain range are not exclusively manufactured in Britain and the mark is not applicable to these products). 

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Technical Specification

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CD 790R/100 Alt Technical Specification

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<p>We are excited to announce that Clark-Drain Ltd is now an accredited member of the Living Wage Foundation.</p> <p>This means that as a company we have made a promise that all our employees and subcontractors will be paid no less than a Real Living Wage per hour for our area.</p> <p><em>The real Living Wage is the only UK wage rate that is voluntarily paid by over 10,000 businesses who believe their staff deserve a wage which meets everyday needs.</em></p>

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CD 300SR/STL Technical Specification

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CD 401/MESH Technical Specification

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CD 422/MESH Technical Specification

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CD 1659A KMD Technical Specification

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CD CS10.30 Technical Specification

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CD CS10.31 Technical Specification

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CD CS10.12 Technical Specification

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CD CS10.10 Technical Specification

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Technical specification

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12 Days of Christmas Competition 2021 - Linkedin - T's & C's

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We are pleased to announce that we have been accredited to Bronze standard by the Fleet Operator Recognition Scheme (FORS). 

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Fabricated Acess Covers Trade Association

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Technical specification

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Installation of linear drainage across new parking and paving areas at a prestigous equestrian centre in Ashdown Forest, East Sussex

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Technical specification

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To ensure that suitable drainage was installed in time for JT Atkinson's new branch opening a run of lightweight high density polyethylene linear drainage provided a surface water management solution.

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Technical specification

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This product selection brochure is designed to provide useful information about Technodrain, our High Density Polyethylene (HD-PE) linear drainage including main features, application options, sizes and accredited loadings. The brochure eases product selection, whilst providing the technical details for specifiers, installers and end-users to make informed accurate decisions.

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Technical specification

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When three underground chambers were required as part of a project to install a new emergency generator at a university campus in London's east end, three specially-fabricated flush top covers and frames were supplied to ensure access. 

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Detailed instructions for the best practice installation of the Technodrain linear drainage

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Technical Specification

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Technical Specification

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Ductile iron catalogue of manhole covers, gully grates and surface boxes

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General At-A-Glance catalogue of core products across the Clark-Drain range of access covers, gully grates, chambers, surface boxes and linear drainage in ductile iron, steel, composite, polypropylene and polymer concrete materials.   

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Colour leaflet for CD 422 Linear Drainage Channel

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As traffic intensity increases and weather conditions become more changeable, high quality, durable drainage covers have never been more important with life costs and safety a central concern for water companies, local councils and highways authorities. High Max offers a solution which can prolong surface wear and skid resistant life.   

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What may be specified to take a small family hatchback isn’t suitable for a large 4 x 4 or a fully laden works van, especially when under dynamic loadings, their weight will be multiplied. On pathways, larger vehicles such as removal lorries often mount the kerb, potentially causing manhole covers to bow, crack or break. In cases like these, a B125 loading is required to maintain the integrity of the drainage installation.

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A block slot linear drainage system developed to prvide a neat, unobtrusive line along surface drainage runs in driveways and pedestrian precincts

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The complete range of domestic, commercial and industrial linear drainage for Civils and Infrastructure projects, urban environments and residential use 

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The Clark-Drain Precinct range of high quality access covers are ideally suited for use over telecommunications, CATV and electrical chambers that require secure, yet frequent and easy authorised access to below ground services. Fabricated to the highest of standards to ensure continued performance under load, they are designed to meet the need for better theft prevention, safety and operational efficiency.

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Traditionally, all-steel recessed covers have been used as an infill option options in areas experiencing heavy traffic. On face value they are often durable enough. Certainly, infrequent laodings can be tolerated for light commercial traffic. However, for regular 25T loads, signicant advantages can be gained by using a C250 ductile iron recessed cover.    

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Clark-Drain underground fixtures and fittings offer cost-effective PVC and polypropylene systems designed for waste and surface water applications. We provide 110mm diameter options which include a range of fittings, gullies, chambers and covers, as well as adaptors for connection to other pipe systems.

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Clark-Drain is an innovator in the design of access chamber systems to deliver cable/utility access and network protection solutions. We supply them to a customer’s precise requirements, as complete chamber access systems, ready to go in the ground, to make them easy to install and to provide the flexibility required for FACTA AAA, B125, D400, FACTA E and E600 installations.

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For use in 110mm drainage layouts with inverts up to 600mm, the 300 series inspection chamber systems provide optimum performance across a wide range of drainage assemblies.

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The Clark-Drain D400 hinged cover series has been specifically developed to offer enhanced manual handling and health and safety benefits.

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Road gullies in high density polyethylene designed for use in trapped and untrapped drainage installations

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A D400 ductile iron recessed cover engineered to cope with frequent heavy duty, slow moving wheel loads encountered by today's busy bus depots,  car parks, petrol stations, municipal maintenance facilities and fleet fueling sites.   

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A medium duty access cover and frame, with slide out, ergonomic design to reduce the effort required to remove the cover, providing a safe option when considering risks asscoiated with manual handling

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On driveways and footpaths the choice of manhole covers can impact on housebuilding maintenance cycles and replacement costs. CD 761SR KMB+R, bears a B125 loading ideal for today's heavy MPVs and 4x4s driven over 450 diameter drainage access.

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In high water table areas where pressure concentration in access shafts can sometimes lead to covers being forced out, Aqua Knight offers a cost effective solution where sealing against odour and water egress is essential for internal applications.

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Detailed guidelines for the best practice installation of CD 452

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Detailed guidelines for the best practice installation of CD 453 and CD 455

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Detailed guidelines for the best practice installation of CD U353 and CD U355

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Detailed instructions for the best practice installation of the CD 470 'Chameleon'

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Technical specification

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Three delivery targets were met on a commercial development specifying 210 metres of linear drainage and silt boxes serving 11 units and a large tamac area that acts as both an entrance and loading area.  

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Technical specification 

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531 Ductile Iron Manhole Covers and Frames, and 201 Ductile Iron Hinged Gully Grates and Frames were supplied supporting Costain's requirement for compliance with Highways regulations

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The refurbishment of three station platform at Liverpool Lime Street benefited from a total of 740 metre length CD 434 linear drainage channel to drain the surface water at a maximum rate of 4.6l/s into silt box traps before discharge into the mains.

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140 meter length of linear drainage was installed to cope with rainwater and slurry produced by the manufacturing process

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Sustainability and long-term performance were also important factors in the project. The drainage infrastructure has been designed with the possible effects of climate change in mind. The drainage channels themselves are wider than might have been specified, in order to ensure they have the capacity for increases in rainfall and storm events

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Specification for underground fire hydrants and surface box frames and covers

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Surface boxes, guards and underground chambers for gas and waterworks purposes. Specification for small surface boxes.

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Technical specification

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B125 chamber access system that saves installation time on traffic signalling, street lighting and communciation network projects.

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Detailed guidelines for the best practice installation of the B125 access chamber system

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Having sufficient drainage capacity was integral the project at Hornsea Garden Centre: Clark-Drain supplied 100 metres of Polymer Concrete Linear Drainage Channel, along with 24 Road Gullies. Made from high density polyethylene, the 450mm diameter gullies offer a light yet incredibly strong alternative to concrete units, while still meeting requirements of the Highways Authority Product Approval Scheme (HAPAS)

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Guidelines to help you match compatible lifting keys with the appropriate manhole covers