FRP Manhole Cover
FRP Manhole Cover
Mostly the frp manhole cover is used in a variety of sizes as square/rectangle/circular as comfortable to customer’s choice. These patterns are accepted at the global level due to their impressive design. The frame and cover plate are specially designed and fitted properly in-between as not to allow the foul smell to emanate from the chamber or does not permit foreign particles to enter the chamber. The keyholes, providing on top of the cover plate helps to easy lifting by the time of service as required. Generally, the square / rectangular/circular manhole cover is preferred for the buildings like schools, hospitals, shopping malls, corporate towers, factories, housing apartments, and individual bungalows and government buildings, apart from roads as highways, sector roads & service roads.
- Anti Slide
- Customized sizes
- weather resistance
- light weight
- Anti theft
- durable
- multiple color options
- corrosion resistance
| Item | Load | Clear Opening (A) | Cover Size (B) | Frame Size (c) | Frame Height (D) | Cover Thickness (H) | Weight (Kg.) |
|---|---|---|---|---|---|---|---|
| Square | 2.5/5 | 225x225 | 250 | 320 | 40 | 15 | 6 |
| 10/20/40 | 225x225 | 290 | 375 | 50 | 20 | 10 | |
| 2.5/5 | 300x300 | 325 | 390 | 40 | 15 | 7 | |
| 10/20/40 | 300x300 | 375 | 425 | 50 | 30 | 24 | |
| 2.5/5 | 450x450 | 475 | 540 | 40 | 15 | 14 | |
| 10/20/40 | 450x450 | 490 | 570 | 60 | 40 | 40 | |
| 2.5/S | 600x600 | 640 | 710 | 50 | 25 | 28 | |
| 2.5/S | 600x600 | 640 | 710 | 50 | 25 | 28 | |
| 10/20/40 | 750x750 | 830 | 930 | 80 | 40 | 90 | |
| 10/20/40 | 750x750 | 830 | 930 | 80 | 40 | 90 | |
| 20/40 | 900x900 | 1000 | 1120 | 90 | 50 | 110 | |
| 40 | 1200x1200 | 1320 | 1440 | 100 | 60 | 130 | |
| Rectangle | 2.5/5/10 | 300x450 | 330x480 | 390x540 | 35 | 15 | 8 |
| 2.5/S | 450x600 | 490x640 | 560x710 | 40 | 15 | 30 | |
| 10/20/40 | 450x600 | 520x660 | 600x750 | 60 | 40 | 48 | |
| 10/20/40 | 450x600 | 520x660 | 600x750 | 60 | 40 | 48 | |
| 2.5/S | 450x900 | 510x960 | 610x1040 | 40 | 25 | 46 | |
| 2.5/S | 450x900 | 510x960 | 610x1040 | 40 | 25 | 46 | |
| 10/20/40 | 450x900 | 520x965 | 615x1065 | 90 | 50 | 75 | |
| 10/20/40 | 600x750 | 680x830 | 780x930 | 80 | 50 | 80 | |
| 10/20/40 | 600x900 | 680x980 | 780x1080 | 90 | 60 | 100 | |
| 10/20/40 | 600x900 | 680x980 | 780x1080 | 90 | 60 | 100 | |
| 20/40 | 750x900 | 840x990 | 960x1110 | 90 | 60 | 120 | |
| Circular | 2.5/5/10 | 300 | 360 | 460 | 40 | 25 | 13 |
| 20/40 | 300 | 360 | 460 | 75 | 40 | 16 | |
| 2.5/5/10 | 450 | 510 | 610 | 40 | 25 | 18 | |
| 20/40 | 450 | 520 | 620 | 75 | 40 | 28 | |
| 20/40 | 530 | 610 | 710 | 80 | 40 | 47 | |
| 2.5/5/10 | 600 | 660 | 760 | 50 | 25 | 30 | |
| 20/40 | 600 | 670 | 770 | 80 | 45 | 55 |
Comparison with CI/DI vs SFRC vs RX FRP Manhole Cover
| Description | R.X. FRP | CI/DI | SFRC |
|---|---|---|---|
| Life Span | High | Moderate | Low |
| Corrosion Resistance | High | Poor | Medium |
| Thermal Expansion | Negligible | High | Low |
| Strength & Weight Ratio | Very High | Moderate | Low |
| Color Range | Available | Not Available | Not Available |
| Finishing | Excellent | Normal | Poor |
| Customization | Offering | No | No |
| Locking System | Available | Not Available | Not Available |
| Scrap Value | Nil | High | Low |
| Cost | Very High | Moderate | Low |
| Handling | Easy | Difficult | Very Difficult |
| Logo Embossing | Available | Not Available | Not Available |
| Abrasion Resistance | Yes | None | None |
Load Capacities and Gradation as per IS: 1726 (1991) Of Manhole Cover
| Grade | Grade Designation | Recommended Application |
|---|---|---|
| Light Duty | LD-2.5 (Wheel load 0.8T) | Suitable for use within residential boundary, walking pathways, pedestrian areas, and pedal cyclists. |
| Light Duty | LD-5.0 (Wheel load 2.5T) | Recommended for areas with light motor vehicle traffic (less than 3 tons), basement parking, and parking decks in residential areas. |
| Medium Duty | MD-10 (Wheel load 3.0T) | Areas such as service lanes/roads, on pavements with medium-weight motor vehicle traffic, including car parking. |
| Heavy Duty | HD-20 (Wheel load 5.0T) | Suitable for use in city trunk roads, bus terminals, and areas where heavy-duty motor vehicle traffic, cul-de-sacs, and frequent traffic areas are present. |
| Extra Heavy Duty | EHD-40 (Wheel load 11.5T) | For high-density traffic areas and all types of vehicles like loaded trucks, containers, and trailers up to fire tenders. Suitable for industrial parks, warehouses, godowns, roads (main, sector, and national highways). |
Load Testing Of Our Manhole Cover
FRP/GRP/COMPOSITE products are tested for LD (2.5/5 Mt), MD (10 Mt), HD (20 Mt), and EHD (35 Mt and above) load-bearing and permanent set as per BS EN: 124, IS: 1726 (1991). BS EN: 124 is a testing code worldwide for manhole covers in cast iron, ductile iron, and other materials.
Permanent Set is a multiple loading test to determine the permanent deformation in covers after multiple loading within a short time as specified in the code.
We have an in-house testing facility where we conduct regular tests batch-to-batch for quality consistency in the product.
Physical Characteristics Of Frp Manhole Cover
| Characteristic | Details |
|---|---|
| Shape Available | Circle, Square, Rectangle, and Customized |
| Working Temperature | -10 to 120 degrees Celsius |
| Noise | Reduced noise and vibration |
| Conduction | Non-electricity and heat conduction |
| Color | Standard gray (customization available) |
| Surface Treatment | Anti-slip, anti-UV |
| Technique | Mold Pressing |
| Packing | Cardboard or as per customer's need |
Technical Specification Of Frp Manhole Cover
| Description | R.X. Manhole Cover Performance |
|---|---|
| Longitudinal Strength | 250 - 600 MPa |
| Compressive Strength | 300 - 600 MPa |
| Stretch Modulus | 25 - 35 GPa |
| Break Elongation Ratio | 1.3 - 10.0% |
| Bending Strength | 700 - 1400 MPa |
| Poisson's Ratio | 0.35 |
| Relative Density | 1.11 - 1.15 |
| Water Absorption (24h) | 10 - 30 mg |