GRP FRP Manhole Covers — EN-124 Certified Composite Covers
GRP and FRP Manhole Covers Are the Same Product — One Composite, Two Names
In Indian tenders, municipal corporation drawings and CPWD specifications, you will see both terms: GRP manhole cover (Glass Reinforced Plastic) and FRP manhole cover (Fiber Reinforced Plastic). Both describe the same material — glass fibre reinforcement locked inside a thermoset resin matrix, moulded under heat and pressure into a one-piece cover with no scrap value. Rawji Exports manufactures both designations on the same EN-124 tested production line at our Bhiwandi plant, so whichever wording your tender uses, the product, the load certificate and the warranty are identical.
Composite covers were adopted across Indian cities for one decisive reason: cast iron theft. A composite GRP cover has zero scrap resale value, weighs about 80% less, never rusts into the frame, and passes the same EN-124 A15–D400 load classes that ductile iron does. For utility companies, smart cities, township developers and EPC contractors, GRP/FRP covers remove the replacement cycle that cast iron forces every few years.
GRP FRP Manhole Cover Specifications
Load classes, sizes and material properties conforming to EN-124 composite cover standards.
| Material | GRP / FRP composite — glass fibre reinforcement in thermoset resin, one-piece moulded |
|---|---|
| Load Classes (EN-124) | A15 (1.5t pedestrian), B125 (12.5t car parks), C250 (25t roads), D400 (40t highways) |
| Standard Sizes | 300x300, 450x450, 450x600, 600x600, 450x900, 900x900 mm plus circular covers; custom clear openings on request |
| Weight vs Cast Iron | Approximately 80% lighter — one worker can lift and seat a composite cover without tools |
| Corrosion Behaviour | Non-rusting, non-conductive, immune to sewage gas, road salt and monsoon exposure |
| Theft Resistance | Zero scrap value composite — no theft incentive; optional locking arrangements |
| Indicative Ex-Works Price | ₹1,500–2,200 (A15 small) up to ₹4,800–7,500 (D400 heavy) per cover; see the full GRP manhole cover price list |
| Applications | Municipal sewerage and storm water, water works, telecom and electric utility ducts, townships, smart city projects, gas pipelines |
EN-124 Load Class Selection Table
Choose the correct class before ordering — undertested covers fail, overtested covers waste budget.
| EN-124 Class | Test Load | Typical Installation |
|---|---|---|
| A15 | 1.5 tonnes | Pedestrian footpaths, gardens, cycle tracks, landscaped areas |
| B125 | 12.5 tonnes | Car parks, residential driveways, slow-moving vehicle zones |
| C250 | 25 tonnes | Urban roads, kerbside lanes, bus bays, parking lanes |
| D400 | 40 tonnes | Highways, arterial roads, heavy traffic corridors, container yards |
Heavy-duty D400 projects: see our dedicated D400 heavy duty FRP manhole covers page for test certificates and frame details.
Frequently Asked Questions
Detailed technical and commercial answers from our composite product engineering team.
Request GRP Cover Pricing & Load Certificates
Fill out the quick RFQ form below to receive a formal quotation, EN-124 test certificates and bulk volume rates within 2 business hours.
Direct Factory Dispatch From Bhiwandi Manufacturing Plant Across: Mumbai MMR, Thane, Navi Mumbai, Pune (Chakan, Talegaon, PCMC), Gujarat Industrial Belt (Ahmedabad, Surat, Dahej PCPIR, Ankleshwar GIDC, Vapi), Delhi-NCR, Hyderabad, Bengaluru, Chennai, and PAN India infrastructure projects.