Rainwater Grates & Manhole Covers from Turkey
Steeling.net supplies cast iron rainwater inlet grates, composite rainwater grates, cast iron and composite manhole covers, square access covers, and polyethylene manhole boxes manufactured by MEA Grup in Turkey to EN 124 standard. Products cover load classes B125 through F900 for pedestrian, road, and heavy-traffic applications, and are available with full EN 124 certification for European and international export projects.
Product Range
MEA Grup produces six product types in the rainwater grates and manhole cover category — covering cast iron and composite inlet grates, single-seal and double-seal manhole covers, square access covers (baca kapağı), and polyethylene manhole boxes for underground access chamber construction. All products are available in EN 124 certified versions with the appropriate load class marking on the cover surface as required by the standard.
Cast Iron Rainwater Grates
Grey and ductile cast iron inlet grates for road drainage — fitted at kerbside and in carriageways to collect surface rainwater. Available in single-piece and hinged formats. Anti-slip surface pattern standard. Compatible with standard gully pots and catchpits.
Standard: EN 124
Load classes: C250 · D400 · E600
Material: Grey cast iron / ductile iron
Opening: Slotted or mesh pattern
Composite Rainwater Grates
Polymer composite inlet grates — lighter than cast iron, corrosion-resistant, and with no scrap metal value (eliminating theft risk). A practical alternative to cast iron in urban areas where grate theft is a maintenance and safety concern.
Standard: EN 124
Load classes: B125 · C250 · D400
Material: Glass fibre reinforced composite
Opening: Slotted pattern · Anti-slip surface
Cast Iron Manhole Covers
Single-seal and double-seal cast iron manhole covers for sewer, utility, and stormwater access chambers. The standard specification for road and infrastructure projects. Available in round, square, and rectangular formats with locking options.
Standard: EN 124
Load classes: B125 · C250 · D400 · E600
Material: Grey cast iron / ductile iron (E600+)
Format: Round · Square · Rectangular
Composite Manhole Covers
Polymer composite manhole covers — lightweight (one-person handling), corrosion-resistant, non-conductive, and with no scrap value. EN 124 certified to D400 for road use. Available with anti-slip surface, logo embossing, and locking mechanism options.
Standard: EN 124
Load classes: B125 · C250 · D400
Material: Polymer composite (GRP reinforced)
Options: Locking · Logo · Custom RAL colour
Polyethylene Manhole Box
High-density polyethylene (HDPE) manhole inspection chamber boxes — lightweight, corrosion-proof, and easy to install. Used as the chamber body for underground inspection points in drainage systems. Available in multiple depths and cover frame options.
Material: HDPE / polyethylene
Applications: Inspection chambers · Drainage access points
Cover: Compatible with cast iron or composite covers
Installation: No mortar bedding required
Square Access Covers (Baca Kapağı)
Square cast iron or composite access covers for utility service chambers — gas, electricity, telecoms, and water infrastructure access points in roads and footpaths. Available with recessed top for infill with paving or tarmac to achieve a flush finish.
Standard: EN 124
Load classes: B125 · C250 · D400
Material: Cast iron / composite
Top: Solid or recessed (infill) format
EN 124 Load Classes — Full Reference
EN 124 defines six load classes for manhole covers and inlet grates based on the test load applied at the centre of the cover. The load class must be matched to the maximum vehicular load expected in the installation area. Fitting an under-rated cover in a vehicle-trafficked zone constitutes a structural defect and a safety and liability risk. The load class designation (A15, B125, C250, D400, E600, or F900) must be permanently marked on the cover surface.
| Class | Test load | Typical installation | Available materials |
|---|---|---|---|
| A15 | 15 kN | Pedestrian areas, roof terraces, cycle paths, garden drainage | Composite, polymer |
| B125 | 125 kN | Footpaths, pedestrian zones, car parks (no heavy vehicles) | Cast iron, composite, HDPE frame |
| C250 | 250 kN | Kerbside, gutters, slow-speed access roads | Cast iron, composite, ductile iron |
| D400 | 400 kN | Standard public roads, carriageways, commercial car parks | Cast iron, ductile iron, composite (D400 rated) |
| E600 | 600 kN | Docks, loading bays, airports (apron areas), heavy haulage routes | Ductile iron, heavy cast iron |
| F900 | 900 kN | Aircraft stands, heavy logistics platforms, extreme load areas | Ductile iron |
Cast Iron vs Composite: Which Should You Specify?
Cast iron and composite are the two principal material choices for manhole covers and rainwater grates. Cast iron is the traditional standard — proven, high-strength, and fully recyclable, but heavy and with high scrap value that makes it a theft target in urban areas. Composite covers are lighter, corrosion-resistant, non-conductive, and have no scrap value, making them the preferred choice wherever theft is a concern or where one-person handling is required for maintenance access.
⬛ Specify cast iron when…
- Maximum load capacity is required (E600 / F900)
- Installation is in a low-theft-risk location
- Long service life under heavy, continuous traffic
- Budget is the primary driver — cast iron is cost-effective at high load classes
- Recyclability at end of life is a project requirement
- Local authority or project standard specifies cast iron
🟢 Specify composite when…
- Theft risk is high — composite has no scrap value
- One-person handling is required for maintenance access
- Electrical substation or high-voltage environment — non-conductive
- Coastal or corrosive environment — cast iron would rust
- Noise reduction is a priority — composite covers are quieter under traffic
- Load class D400 or below is sufficient for the application
- Custom logo, colour, or surface finish is required
Frame and Cover Systems
Manhole covers and inlet grates are supplied as a frame-and-cover assembly — the frame is permanently installed in the surround material (concrete, tarmac, or block paving), and the cover sits within it. Frame and cover must be dimensionally matched and rated to the same load class. For road applications, the frame is typically set in concrete surround with the cover surface flush with the road level. Recessed covers allow infill with paving or tarmac to achieve a fully flush finish in pedestrian areas.
| Feature | Standard cover | Recessed (infill) cover | Double-seal cover |
|---|---|---|---|
| Surface finish | Cast anti-slip pattern | Recessed tray for paving or tarmac infill | Anti-slip pattern with inner seal |
| Odour / water tight | No | No | Yes — inner and outer seal |
| Typical use | Road and car park drainage access | Pedestrian plazas, heritage streetscapes | Sewer access in odour-sensitive areas |
| Locking option | Bolt-down or snap-lock | Security bolt standard | Bolt-down standard |
Why Source from Steeling.net?
EN 124 certified products — all manhole covers and inlet grates carry valid EN 124 certification for the declared load class, with full documentation provided.
Full load-class range — B125 through F900, in both cast iron and composite, from a single coordinated source.
Complete system supply — frame and cover assemblies, polyethylene manhole boxes, and square access covers available together for full access chamber packages.
Custom options — logo embossing, custom RAL colour, locking mechanisms, and recessed tops available on composite covers for municipal and architectural projects.
Direct from manufacturer — MEA Grup manufactures all products in Turkey. Competitive ex-works and CIF pricing with short lead times to European and Gulf ports.
Free for buyers — Steeling.net charges no buyer fees or commissions. Supply proposals returned within hours of enquiry.
Frequently Asked Questions
What load class manhole cover do I need for a public road?
Public roads and carriageways require a minimum D400 (400 kN) rated manhole cover per EN 124. D400 is the standard specification for most highway drainage and utility access applications in European jurisdictions. E600 is required for docks, loading areas, and airport aprons. F900 is specified for aircraft stands and extreme load areas. Always confirm with the local authority or project civil engineer before ordering, as requirements can vary.
What is the difference between single-seal and double-seal manhole covers?
A single-seal manhole cover has one sealing surface between the cover and frame. A double-seal cover has two sealing surfaces — an inner and outer seal — making it gas- and water-tight. Double-seal covers are specified for sewer access chambers where odour or gas escape is a concern, and in areas where groundwater ingress into the chamber must be prevented. Standard road drainage access chambers typically use single-seal covers.
Why are composite manhole covers becoming more common than cast iron?
Composite covers offer three practical advantages that have driven their growing adoption: they have no scrap metal value, eliminating the theft that affects cast iron covers in many urban areas; they are significantly lighter (typically 60–70% lighter than cast iron equivalents), making one-person maintenance access possible without lifting equipment; and they are corrosion-resistant, which extends service life in coastal, marine, and chemically aggressive environments. For load classes up to D400, composite is now widely accepted as an alternative to cast iron.
What is a polyethylene manhole box and when is it used?
A polyethylene manhole box (inspection chamber) is a prefabricated HDPE chamber body used to form underground access points in drainage systems. It is installed below ground with the cover frame at surface level, providing access for rodding, inspection, and maintenance of drainage pipes. Polyethylene chambers are lightweight, corrosion-resistant, and require no mortar bedding — making installation faster than traditional brick or precast concrete chambers. They are compatible with cast iron or composite cover frames.
What is a recessed (infill) manhole cover and where is it used?
A recessed manhole cover has a tray-shaped top that can be filled with the same paving material as the surrounding surface — block paving, granite sett, or tarmac — to create a fully flush, visually integrated finish. Recessed covers are specified in pedestrian plazas, heritage streetscapes, and architectural public realm projects where the appearance of a standard anti-slip pattern cover would be unacceptable. A security fixing is standard on recessed covers to prevent unauthorised removal.
Can manhole covers be supplied with custom logos or markings?
Yes. Composite manhole covers can be produced with custom logo embossing, utility designation markings (Water, Gas, Electric, Telecom), and custom RAL colour for municipal and infrastructure projects. Cast iron covers can also be produced with pattern casting variations. Custom options are confirmed at the quotation stage and may be subject to minimum order quantities for tooling.
Request a Quote for Rainwater Grates & Manhole Covers
Send your load class, material preference, format (round / square / rectangular), and quantity — we return a competitive proposal with full EN 124 certification. No fees for buyers.
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