Composite Manhole Covers
FRP-GRP Covers
Project-Led Selection of FRP Composite Manhole Covers
NA-ME Endüstri FRP composite manhole and access covers provide a low-weight, corrosion-resistant and metal-free option for infrastructure openings. Selection is not based on the outside dimension alone. The EN 124 load class, clear opening, circular/square/rectangular geometry, frame and seating detail, site traffic, locking and sealing requirements must be reviewed together.
Load Class, Clear Opening and Cover Detail
B125, C250 and D400 are considered for different site and traffic conditions. Select the class from the duty at the installation point, not from a product name; for a custom cover, verify the clear opening and cover geometry within the same project definition.
Load and traffic condition
Determine the EN 124 class from the actual pedestrian, kerbside or vehicle-traffic condition.
Clear opening and geometry
Define the opening to be closed together with the circular, square or rectangular geometry.
Frame and seating
Coordinate outside dimensions, frame, seating surface and embedment detail with the existing structure.
Access and sealing
State the lifting-handle, manual-locking and gasket requirements against maintenance frequency and site safety.
Source-Verified Characteristics of FRP Covers
No scrap-theft incentive
NA-ME composite covers have zero scrap value; this removes the scrap-value incentive associated with stolen metal covers.
Easier transport and access
Lower handling weight than metal and cast-iron alternatives supports transport, installation and maintenance access.
Corrosion resistance
Corrosion resistance makes FRP suitable for review in infrastructure and industrial environments where rust is a concern.
Insulating, non-magnetic material
Electrical and thermal insulation together with non-magnetic construction support selection where a metal cover is unsuitable.
Product and Application Evidence
The images identify the product family and its application context. Confirm the final cover size, load class and frame detail separately from the project data.
Supplementary Circular Cover Schematic
Verify the Cover Selection from Project Data
Share the clear opening, geometry, load class, frame/seating detail, application, locking and sealing requirements.
Contact us about your FRP composite-cover project