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Help Center5000L FRP Underground Sewage Tank, 8mm Wall, 1.0MPa, With Manhole Access
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Hengshui Ruibin New Materials LLC, a professional manufacturer established in 2019 with a 1,000-3,000 square meter factory and 101-200 skilled employees, proudly presents our 5000L FRP Underground Sewage Tank designed for reliable, long-term wastewater storage. This tank features an 8mm wall thickness, 1.0MPa pressure rating, and built-in manhole access for easy maintenance. Combining advanced corrosion resistance with structural strength, our tank is an ideal solution for residential, commercial, and industrial sewage systems.
Key Features & Benefits
- High-strength FRP construction – Resistant to chemicals, moisture, and soil corrosion, ensuring a service life of over 30 years.
- 8mm wall thickness – Provides superior rigidity and impact resistance for underground installation.
- 1.0MPa pressure rating – Suitable for demanding applications where internal pressure or external soil loads are present.
- Integrated manhole access – Allows easy inspection, cleaning, and maintenance without removing the tank.
- Lightweight yet durable – Approximately 60% lighter than concrete tanks, reducing transportation and installation costs.
- Leak-proof design – Seamless FRP molding eliminates joints and seams, preventing groundwater contamination.
- UV-resistant gel coat – Protects the tank during above-ground storage before installation.
- Customizable options – Available in various colors, connection types, and additional fittings per request.
Technical Specifications
| Parameter | Value |
| Capacity | 5000 Liters |
| Wall Thickness | 8 mm |
| Pressure Rating | 1.0 MPa (approx. 145 psi) |
| Material | Fiberglass Reinforced Plastic (FRP) |
| Manhole Diameter | 600 mm (standard, customizable) |
| Overall Dimensions | Approx. 2.0m diameter x 2.5m height (customizable) |
| Operating Temperature | -40°C to +80°C |
| Connection Options | Flanged, threaded, or plain (upon request) |
Why Choose Our FRP Underground Sewage Tank?
Compared to traditional concrete or steel tanks, our FRP solution offers superior corrosion resistance in aggressive sewage environments, eliminating the need for costly coatings or linings. The 8mm wall thickness ensures structural integrity even under heavy soil loads, while the 1.0MPa pressure rating provides a safety margin for fluctuating internal pressures. The integrated manhole access simplifies routine inspections and pump-outs, reducing long-term maintenance costs.
Our tanks are manufactured using advanced filament winding and hand lay-up processes, ensuring consistent quality and dimensional accuracy. Each tank undergoes rigorous hydrostatic pressure testing before shipment to guarantee leak-free performance. With a factory size of 1,000-3,000 square meters and a team of over 100 experienced workers, we maintain strict quality control from raw material selection to final packaging.
Trust & Credibility
Hengshui Ruibin New Materials LLC has been a trusted manufacturer since 2019, exporting to North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and other regions. Our annual export value exceeds US$2.5 million, reflecting global customer satisfaction. We ship from Port of Tianjin and Port of Qingdao, ensuring efficient logistics. Our products have been widely adopted in municipal sewage projects, residential communities, and industrial wastewater treatment plants.
We are committed to providing customized solutions – whether you need a different capacity, unique inlet/outlet configurations, or special color coding. Our engineering team is ready to assist with technical drawings and installation guidance. Contact us today to discuss your project requirements and receive a competitive quotation.
Frequently Asked Questions
Q1: What is the expected lifespan of this FRP underground sewage tank?
A: With proper installation and average groundwater conditions, the tank can last 30–50 years. The FRP material is resistant to corrosion and biological degradation.
Q2: Is the tank suitable for high groundwater areas?
A: Yes, the 8mm wall thickness and 1.0MPa pressure rating provide adequate strength to resist external groundwater pressure. We recommend a concrete anchor or anti-buoyancy design for extreme conditions.
Q3: Can the manhole cover be locked for security?
A: The standard manhole cover is designed for easy access but can be customized with a locking mechanism or tamper-proof bolts upon request.
Q4: What chemicals can the tank withstand?
A: FRP is resistant to most organic and inorganic compounds found in domestic sewage, including acids, alkalis, and salts. For aggressive industrial effluent, please consult our technical team for specific resin selection.
Q5: How is the tank transported and installed?
A: The tank is lightweight (approx. 300–400 kg) and can be shipped via standard 20ft container. Installation involves excavating a pit, placing the tank on a prepared bed, and backfilling with soil. Detailed installation instructions are provided.
Q6: Do you offer custom sizes and fittings?
A: Yes, we can customize the tank diameter, height, connection types (flanged, threaded, etc.), and additional manholes or inspection ports. Minimum order quantity may apply.
Q7: What is the warranty period?
A: We offer a standard 1-year warranty against manufacturing defects. Extended warranties are available upon negotiation.
Q8: Can you provide engineering drawings for approval?
A: Yes, we can provide 2D and 3D CAD drawings, as well as structural calculations, after receiving your order or inquiry.
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