Audited Supplier
Recessed manhole covers are specially designed to blend seamlessly with the surrounding pavement or ground surface. They offer the following key benefits:
1. Aesthetic Appeal
Visual Integration: The surface can be paved with tiles, asphalt, stone, or grass to match the surrounding environment (e.g., pedestrian streets, squares, residential landscapes), avoiding the abrupt appearance of traditional manhole covers.
Enhancing Overall Design: Suitable for locations with high aesthetic requirements, such as commercial districts, parks, and villa communities.
2. Safety
Anti-Settlement Design: Recessed manhole covers are made of high-strength materials (such as ductile iron) and optimized structures, reducing the risk of sinking, loosening, or noise caused by vehicle pressure.
Anti-Slip & Trip Prevention: The surface is flush with the ground, minimizing the risk of tripping, especially in pedestrian walkways or high-traffic areas.
Anti-Theft Design: Some products feature hidden locks or require specialized tools for opening, reducing the risk of theft.
3. Functionality
High Load-Bearing Capacity: Available in different load-bearing grades according to requirements (e.g., light pedestrian zones or heavy vehicle roads), with some capable of supporting loads exceeding 40 tons.
Easy Maintenance: Some designs incorporate flip-open or modular structures for quick access during maintenance.
4. Environmental Adaptability
Flexible Paving: The surface can be covered with matching materials (such as tiles, concrete, or grass) to meet diverse landscape requirements.
Drainage & Ventilation: Some recessed manhole covers include concealed gaps that facilitate drainage, making them suitable for greenbelt areas.
5. Durability
Corrosion Resistance: Made from stainless steel, ductile iron, or composite materials, offering resistance to acids, alkalis, and rust, thereby extending service life.
Noise Reduction: Fits tightly with the ground, reducing vibrations and noise when vehicles pass over.
6. Special Application Scenarios
Green Spaces: Recessed grass-covered manhole covers can be concealed within vegetation, preserving the integrity of landscaping.
Historical & Cultural Districts: Surfaces can feature antique designs (e.g., imitation bluestone) to complement traditional architectural styles.
| Product: | Square Manhole Cover |
| Material and standard: | Spheroid Graphite Iron Grade QT 500-7 to GB 1348-2019(equivalent with EN-GJS-500-7 to BS EN 1563:2011 or JS/500-7 to ISO 1083:2018 ) |
| Norm Followed: | GB/T 23858-2009 ,equivalent to EN 124-2:2015 |
| Coating: | Bitumen based paint coating to BS 3416:1991 |
| Patterns and logos: | Patterns and logos can be customized. |
| Loading Capacity: | B125 |
| Features: | Solid top, Anti-Theft, Auti-Rust, Less Noise, Long Time Sevic |
| Anti-slip performance: | PSRV>70 |
Hengshui Lilang International is one of the leading Supplier of ductile iron manhole covers and related products in China. we pride ourselves on our unwavering commitment to quality. All our products adhere to stringent Chinese and international standards, undergoing rigorous quality control processes to ensure superior performance, longevity, and reliability. We understand the importance of durability and functionality in demanding environments and the biggest concerns of our clinets.
Backed by a team of professionals with extensive industry experience and expertise, we offer personalized solutions tailored to our clients' unique requirements. Whether you require customized products, specialized coatings, or logistical support, we are dedicated to providing efficient and reliable services that exceed your expectations.
Our mission is to be a trusted partner to our clients, offering innovative solutions and exceptional value. By choosing Hengshui Lilang International Trading Company Ltd, you can trust in our commitment to delivering premium products, professional services, and enduring partnerships. We are excited to collaborate with you to build a brighter future together.
From Raw material to packge, complete QC procedure is followed to ensure the quality of products. 
We have design and drawing partners and our own team to facilite the demand of product design, 3D modeling and finite element analysis. 
We offer a 1-year warranty for our manhole covers, ensuring high quality and durability. Should you encounter any issues, our dedicated support team is available 24/7 for assistance. Please feel free to contact us anytime, and we'll address your concerns promptly.
