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Fiberglass Grating Wastewater Treatment Plants Walkways Drainage Covers Maintenance Platforms
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Fiberglass Grating Wastewater Treatment Plants Walkways Drainage Covers Maintenance Platforms
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Fiberglass Grating Wastewater Treatment Plants Walkways Drainage Covers Maintenance Platforms
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Fiberglass Grating Wastewater Treatment Plants Walkways Drainage Covers Maintenance Platforms
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Fiberglass Grating Wastewater Treatment Plants Walkways Drainage Covers Maintenance Platforms
Product performance introduction
In the demanding environments of wastewater treatment plants (WWTPs), infrastructure components must be able to withstand constant exposure to moisture, corrosive chemicals, biological agents, and heavy mechanical use. Traditional materials like steel and wood quickly degrade under such conditions, leading to high maintenance costs, safety hazards, and operational downtime. To overcome these challenges, fiberglass grating (FRP grating) has become the material of choice for walkways, drainage covers, maintenance platforms, tank access areas, and more within WWTPs.
Unmatched Corrosion Resistance
Wastewater treatment facilities are rife with harsh substances—chlorine, hydrogen sulfide, acidic compounds, alkalis, and more. These elements accelerate corrosion in steel and rot in wood. Fiberglass grating, manufactured from glass fibers embedded in a thermosetting resin matrix (typically vinyl ester or isophthalic polyester), delivers outstanding chemical and corrosion resistance. It does not rust, warp, or decay, ensuring reliable performance even in constant immersion zones and splash areas.
Safe & Slip-Resistant Walking Surfaces
Safety is a top priority in any wastewater plant where employees work around open tanks, channels, and drainage areas. FRP grating typically features a gritted or concave surface that maintains excellent traction—even when wet, oily, or covered in biofilms. This reduces slip and fall incidents on elevated walkways, catwalks, or platforms positioned above treatment basins, clarifiers, or digesters.
Durable Yet Lightweight
Despite its light weight, fiberglass grating is structurally robust, supporting both pedestrian traffic and equipment loads. Unlike metal grates, FRP grating does not deform under constant load or impact. Its high strength-to-weight ratio makes it easy to handle during installation and modification, often without requiring cranes, welding, or special tools. This is especially valuable in plant retrofits or during expansion projects.
Non-Conductive & Low Maintenance
FRP grating is non-conductive, making it a safer option in electrical rooms or areas where pumps, sensors, and instrumentation are used. It does not spark, corrode, or conduct electricity, reducing the risk of accidents. Additionally, fiberglass grating is virtually maintenance-free: no need for repainting, sandblasting, or chemical coatings. Cleaning usually requires only water or light detergents, saving both labor and material costs over its long lifespan.
Versatile Applications in Wastewater Facilities
Fiberglass grating can be fabricated and cut to suit a wide range of configurations in treatment plants. Common applications include:
- Access walkways along basins and tanks
- Drainage and trench covers in mechanical rooms and chemical dosing areas
- Aeration tank and clarifier platforms
- Chemical storage area flooring
- Maintenance and inspection platforms
- Odor control structure grating covers
With modular panel options, FRP grating allows for rapid installation in hard-to-reach areas, whether on raised mezzanines or submerged zones.
FRP Grating Specifications & Technical Parameters
1.General Specifications
| Item | Description |
|---|---|
| Product Type | Molded FRP Grating / Pultruded FRP Grating |
| Mesh Size | 38x38 mm (1.5"x1.5") / 40x40 mm / Custom |
| Thickness (Height) | 25 mm / 30 mm / 38 mm / 50 mm |
| Panel Size | 1220x3660 mm / 1000x4000 mm / Custom |
| Open Area | 60% – 70% (depending on mesh size) |
| Surface Options | Gritted / Concave / Smooth / Covered Top |
| Color | Gray, Yellow, Green, Red, Custom |
2. Mechanical Properties (Typical Values)
| Property | Value | Test Standard |
|---|---|---|
| Tensile Strength | ≥ 120 MPa (17,400 psi) | ASTM D638 |
| Flexural Strength | ≥ 200 MPa (29,000 psi) | ASTM D790 |
| Flexural Modulus | ≥ 7,800 MPa (1.13×10⁶ psi) | ASTM D790 |
| Compressive Strength | ≥ 200 MPa (29,000 psi) | ASTM D695 |
| Impact Strength (Izod) | ≥ 85 J/m | ASTM D256 |
| Barcol Hardness | ≥ 40 | ASTM D2583 |
3. Physical & Chemical Properties
| Property | Value | Test Standard |
|---|---|---|
| Density | ~1.8–2.0 g/cm³ | ASTM D792 |
| Water Absorption | < 0.5% | ASTM D570 |
| Flame Retardancy | ≤ 25 (Class 1) | ASTM E84 |
| UV Resistance | Available with UV inhibitor | - |
| Electrical Conductivity | Non-Conductive | - |
| Thermal Conductivity | ~0.25 W/m·K | ASTM C177 |
| Operating Temperature Range | -50°C to +120°C (varies by resin) | - |
4. Resin Systems Available
| Resin Type | Features | Application Areas |
|---|---|---|
| Orthophthalic | General purpose, cost-effective | General industry, flooring |
| Isophthalic | Improved chemical resistance | Wastewater, food processing |
| Vinyl Ester | Excellent chemical and corrosion resistance | Chemical plants, offshore, mining |
| Phenolic | Fire and smoke resistance | Oil & gas, transport, marine |
5. Load Table (Example for 38mm Thick Grating)
| Span (mm) | Load (kN/m²) | Deflection (mm) |
|---|---|---|
| 600 | 5.0 | 4.5 |
| 800 | 3.5 | 5.9 |
| 1000 | 2.0 | 7.6 |
Why Choose Us
Expertise in FRP Grating Manufacturing
With over 20 years of experience, our factory specializes exclusively in the design, development, and production of high-performance FRP (Fiberglass Reinforced Plastic) gratings. Our deep industry knowledge ensures that every product meets the most demanding industrial standards.
Advanced Technology and Equipment
We utilize state-of-the-art manufacturing equipment and precision molding technology to produce gratings with superior strength, corrosion resistance, and dimensional accuracy. Our commitment to innovation means your project benefits from the latest advancements in FRP technology.
Customized Solutions
From panel sizes and resin types to surface finishes and colors, we offer complete customization to meet your unique application needs—be it industrial flooring, stair treads, trench covers, or marine platforms.
Stringent Quality Control
Every product undergoes a rigorous quality inspection process, including load testing, flame retardance checks, and corrosion resistance analysis. Our ISO-certified quality management system ensures consistent excellence in every batch.
Competitive Pricing
We offer factory-direct pricing without compromising on quality. With optimized production processes and bulk manufacturing capabilities, we help our customers achieve cost savings at scale.
Reliable Delivery and Global Reach
We maintain a large stock of standard products and operate a streamlined logistics system, ensuring fast delivery times locally and internationally. We’ve successfully served clients in over 15 countries.
Hot-Selling Products
| Standard Panel Sizes | 1220 mm × 3660 mm (4 ft × 12 ft) 1220 mm × 4000 mm (4 ft × 13.1 ft) 915 mm × 3050 mm (3 ft × 10 ft) 1000 mm × 3000 mm (customizable) (Other sizes can be customized according to project needs) |
| Thickness Options | 25 mm (1 inch) 30 mm (1.2 inch) 38 mm (1.5 inch) — most common 50 mm (2 inch) |
| Mesh Size (Opening Size) | 38 mm × 38 mm (1.5 inch × 1.5 inch) — Standard 40 mm × 40 mm 19 mm × 19 mm (mini-mesh for small object passage prevention) |
| Load Bar Width and Spacing (for Pultruded Grating) | Load bar width: typically 25 mm, 38 mm, 50 mm Load bar spacing: 25 mm, 40 mm, 50 mm center-to-center |
| Surface Options | Gritted surface (anti-slip) Smooth surface Covered surface (solid top) |
| Colors Available | Yellow (most common) Green Grey Red Customized colors upon request |
| Common Resin Types | Isophthalic Polyester (standard corrosion resistance) Vinyl Ester (high chemical resistance) Phenolic (fire-resistant applications) |
About the Factory
Anhui Tianfu New Material Co., Ltd is a leading professional manufacturer specializing in FRP moulded grating production. With over 20 years of experience in the composite materials industry, we are dedicated to delivering high-quality fiberglass reinforced plastic (FRP) solutions for a wide range of industrial and commercial applications. Our modern factory is equipped with advanced production lines, covering an area of more than 26,000 square meters. We offer a complete range of molded FRP gratings featuring superior strength, chemical resistance, fire retardancy, and anti-slip performance. At Tianfu New Material, we prioritize innovation, strict quality control, and customer satisfaction. Our products are certified to international standards and exported to over 30 countries worldwide, serving industries such as chemical plants, sewage treatment facilities, offshore platforms, and walkways. Whether you need standard sizes or customized solutions, Tianfu is your reliable partner for FRP moulded grating.
Application Scenarios
About the Factory
We are a professional FRP Grating manufacturer with 20+ years of experience. Our 26,000㎡ factory is ISO9001 certified, serving clients across 30+ countries with OEM/ODM capability. We provide customized solutions and fast delivery worldwide.
Our FRP gratings are manufactured in accordance with ISO 9001 standards and tested per ASTM E84 (Class 1 fire rating), ASTM D638/D790 for mechanical performance, and comply with BS 476 and EN 13706 standards. Third-party testing available through SGS and TUV upon request.
Exhibition
JEC WORLD 2023
JEC WORLD 2024
CAMX 2025
SHANGHAI 2025
Certificate
FRP Moulded Grating TDS
Other Products
FRP pultruded profiles
FRP pultruded grating
FRP handrail system
FRP grating clips
VR Factory Tour
Fiberglass Grating Wastewater Treatment Plants Walkways Drainage Covers Maintenance Platforms
Series :
Fiberglass Molded Grating >application
Industrial Flooring,Marine and Offshore Platforms,Wastewater Treatment Plants,Food and Beverage Industry,Transportation Infrastructure,Construction Sites,Battery Rooms and Electrical Substations,Public and Commercial Spaces,Water Parks and Swimming Pools,Rooftop and HVAC Systems
Mesh Size :
38x38 mm (1.5
Thickness (Height) :
25 mm / 30 mm / 38 mm / 50 mm
Panel Size :
1220x3660 mm / 1000x4000 mm / Custom
Open Area :
60% – 70% (depending on mesh size)
Surface Options :
Gritted / Concave / Smooth / Covered Top
Color :
Gray, Yellow, Green, Red, Custom
FAQ
Q :
Why is fiberglass grating preferred in wastewater treatment plants over steel grating?
A :
Fiberglass grating is highly resistant to corrosion from chemicals, moisture, and gases like hydrogen sulfide found in WWTPs. Unlike steel, it won’t rust or corrode, reducing maintenance and replacement costs.
Q :
Can fiberglass grating handle heavy loads like maintenance equipment or foot traffic?
A :
Yes. Molded and pultruded FRP gratings are engineered to handle various load requirements, including pedestrian traffic, carts, and light machinery. Load ratings should be confirmed based on panel thickness and span.
Q :
Is FRP grating safe for wet and slippery areas like treatment basins?
A :
Absolutely. Most FRP grating features a gritted or concave anti-slip surface that provides excellent traction even in wet or oily conditions, improving worker safety.
Q :
How does fiberglass grating perform in chemical exposure environments?
A :
FRP grating is manufactured using corrosion-resistant resins (e.g., vinyl ester) that offer long-term resistance to acids, alkalis, and biological agents commonly present in wastewater treatment plants.
Q :
Is fiberglass grating fire-resistant?
A :
Yes. Fire-retardant resins are available that meet ASTM E84 Class 1 standards. For critical areas, grating can be manufactured to meet additional fire and smoke standards like UL94 or FTP Code.
Q :
Can fiberglass grating be customized for trench covers or irregular platforms?
A :
Yes. FRP grating can be easily cut to size using standard tools and fabricated to fit unique layouts, such as curved channels, uneven platforms, or customized drainage covers.
Q :
Does fiberglass grating require grounding or spark protection?
A :
No. FRP grating is non-conductive, making it safer around electrical equipment or flammable gases, as it won’t cause sparks or carry electrical current.
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