Cadent Gas continues to replace their previously installed heavy cast iron with concrete infill trench covers with Fibrelite’s lightweight retrofit GRP composite covers...
Read MoreCadent Gas continues to replace their previously installed heavy cast iron with concrete infill trench covers with Fibrelite’s lightweight retrofit GRP composite covers...
Read MoreApproximately 625 metres of custom designed and manufactured Fibrelite GRP trench covers and frames were specified for this project at one of the UK’s largest power stations...
Read MoreWith a fleet of 200 buses stationed, serviced, and refuelled at MPK Poznan depot in Poland, the Poznan Municipal Transport Company required an easy access covering solution…
In order to utilize the power generated by nearly 30,000 solar panels installed on 150 acres of unused farmland in southeastern Connecticut, a regional utility needed to install…
In this project we were approached by an OEM who provides Onshore Power Supply (OPS) systems, to quote for this large leisure cruise terminal upgrade project.
Light enough to remove by hand.
Strong enough for any application A15-F900Although FRP GRP composite covers are now increasingly preferred to the traditional metal or concrete options – not every composite cover performs to the highest standards year after year.
Fibrelite trench covers are a high-performance product created via resin transfer molding moulding (RTM) to create a durable, monolithic cover that you can truly fit-and-forget. What’s more, each one has been individually engineered in our own manufacturing facilities.As well as being lightweight – typically a third of the weight of an equivalent-size cover produced in metal or concrete, Fibrelite’s ergonomically-designed lifting aid also eliminates the risk of back injury and crushed fingers.
Designed as a fit-and-forget product, our FRP GRP composite covers are maintenance-free, durable and very strong.
Read our wear resistance test report (Refer to clause 3.2.1 and 3.2.2, page 14)
Read our impact resistance test report (Refer to clause 4.2, page 15)A prime reason for selecting a composite cover is for its inherent resistance to corrosion. This makes it an obvious choice where water, waste water or corrosive liquids are involved. Fibrelite covers are also ideal where underground infrastructure requires protection from external corrosive compounds, such as salt.
Read our corrosion resistance test report (Refer to clause 3.1.5 & 4.4, page 14 & 15)
Independent wet and dry tests carried out by Devon CC Materials Laboratory showed that Fibrelite manhole and trench covers – even when wet – have anti-slip/skid properties far exceeding health and safety advisory limits.
Read our skid resistance test reportThe thermal gradient properties of a composite steam cover significantly reduces the heat transfer from a steam vault to the surface of the cover. Typically, the surface temperature of a composite cover is only slightly above ambient temperature, even when subjected to extremely hot temperatures on the underside.
In fact, Fibrelite’s high-quality steam covers maintain their cool-to-touch properties and ability to support vehicular loads, even when pushed to a test temperature of 400°F.
The thermal gradient properties of a composite steam cover significantly reduces the heat transfer from a steam vault to the surface of the cover. Typically, the surface temperature of a composite cover is only slightly above ambient temperature, even when subjected to extremely hot temperatures on the underside.
In fact, Fibrelite’s high-quality steam covers maintain their cool-to-touch properties and ability to support vehicular loads, even when pushed to a test temperature of 400°F.
Read our heat resistance test report“…I think Fibrelite is a great solution to a difficult design problem for us, of achieving both a robust and high load capacity cover to the multicore cables running from stage to control desk whilst maintaining low weight and easy access.”
Fibrelite’s composite covers are available in almost any size, colour, shape or configuration, providing a truly bespoke
made-to-measure solution for every project.
Available in a range of widths from 300mm (12″) to 1,000mm (40″); a range of lengths from 600mm (24″) to 2,000mm (78 ¾”) and depths from 50mm (2″) to 203.2mm (8″). Custom sizes are also available.
Load ratings are available from A15 to F900.
Available in a range of widths from 300mm (12″) to 1,000mm (40″); a range of lengths from 600mm (24″) to 2,000mm (78 ¾”) and depths from 50mm (2″) to 203.2mm (8″). Custom sizes are also available. Load ratings from Pedestrian to 90 tons.
Locks and restraining bolts are available for added security, either a standard head operated by an Allen Key, or a bespoke Tri Head, operated by a dedicated Tri Key.
A rubber seal is fitted to the frame and the covers are secured with four stainless steel bolts per cover. Plugs are provided for the key housings to complete the seal, and bolt heads covered.
Watertight sealant is applied to the frame upon installation and reapplied each time the covers are removed and replaced. Commonly specified where infrequent cover removal is expected.
A single sealed cover and frame can be included in the trench run to enable quick access to a key part of the trench for monitoring and inspection.
Where two trenches run next to each other, a single cover can span both, offering economies of both initial costs and time required for removal and replacement.
Designed to provide enhanced chemical and corrosion resistance along as well as improved RF performance.
Speed of installation. The epoxy is stronger than concrete and will cure to be trafficable within 2-3 hours. Concrete has good compression strength but poor tensile and shear. The temperature must be 3°and rising for concrete to be poured. Epoxy can be used at 0°.
Accurate and consistent bearing ledge, particularly important when the covers are to be trafficked by HGV’s or experience higher dynamic loads.
The epoxy frame installation can be retro-fitted into existing rebates.
Fibrelite trench covers can be custom molded moulded to be stepped, allowing them to be retrofitted into existing frames with shallow rebates while maintaining their structural integrity (independently tested).
This allows direct replacement of previously existing metal covers, or installation in existing precast or preformed concrete trenches. Stepping can also reduce manufacturing cost and weight.
“Dakin Contractors have worked with Fibrelite for over 20 years now and we are happy to recommend Fibrelite to any company looking to utilize utilise their services. We have always found Fibrelite to be the leader in their market…a company driven by providing a product and a service that their customers desire and are constantly striving to improve their product in response to customer feedback. Fibrelite provide top class products at competitive prices and back their products up with an excellent on-site service.”
Potential electrostatic discharging can be eliminated by using our “fully conductive” covers. We use a metalized metallised fiber fibre within the molding moulding process to achieve electrical continuity across the entire surface of the cover – and exceed the surface resistivity requirements of PAS26.
While the standard calls out for a maximum value of 1 KΩ/cm²; Fibrelite covers actually achieve a value of 0.0144 KΩ/cm².
Read our Conductivity Test Report (Refer to clause 3.1.5, Page 14)
An 18” square, raised cover manufactured and supplied by Fibrelite was put through testing as specified in BS EN 124 after 14 years solid service on a high-traffic forecourt. The test report confirms the cover easily passed and it was notable that the orange color colour had not faded, indicating that weathering and UV have no or very little impact on the performance of the Fibrelite cover over a sustained period.
Read the test reportThere is no risk of theft with a Fibrelite composite cover as composites have no resale value in the scrap market – so you won’t be left with a dangerous, uncovered hole in the ground.