The PP modular box is an essential component of the rainwater collection and utilization system. Made of high-quality polypropylene (PP) material, it offers excellent compression and corrosion resistance, strong bearing capacity, stable performance, environmental protection, easy installation, and a long service life.
| Size | L1200mm*W600mm*H300mm |
| Compressive Strength (Type A) | Vertical ≥400KN/㎡; Horizontal >150KN/㎡ |
| Compressive Strength (Type B) | Vertical >250KN/㎡; Horizontal ≥90KN/㎡ |
| Color | Yellow |
| Cover Height (Type A) | 0.8–4m |
| Cover Height (Type B) | 0.25–2.5m |
| Void Ratio | 95% |
For comprehensive information, please see the document available for download below.
The PP modular box stormwater storage system delivers efficient underground water retention and infiltration capacity through its advanced modular design. Manufactured using high-strength polypropylene (PP), this stormwater storage solution supports long-term environmental resilience while optimizing underground space use. The PP modular box stormwater storage product features a 95% void ratio, allowing rapid water flow and large-volume detention without increasing excavation size. Due to its interlocking structure and lightweight build, the system accelerates construction while maintaining stability and structural performance under heavy loads.
Made from high-strength, corrosion-resistant PP material with long service life
Up to 95% void ratio for maximum stormwater storage efficiency
Modular design reduces on-site labor and installation time
Units can be stacked for compact, low-cost transport and easy handling
Overlap assembly design offers flexible layout with stable interconnection
Environmentally friendly materials and fully reusable structure
Ideal for rainwater harvesting, infiltration, and detention basins
Reduces surface runoff and improves water resource management
Minimizes space usage due to high storage density and modular flexibility
Supports sustainable urban drainage systems (SUDS) and LEED goals
Enables decentralized stormwater management in both public and private projects
The modular design allows flexible layout in various geometric configurations, such as rectangular, square, or L-shaped clusters. Contractors can assemble units quickly by overlapping them horizontally and vertically, then sealing edges as required. Since the shaft height and depth configuration can be customized, this product adapts to multiple project scenarios and land conditions. The lightweight but rigid PP modules can be placed without cranes, accelerating installation and reducing labor costs significantly.
Q1: What is the storage efficiency of the PP modular box?
A: It provides up to 95% void volume, maximizing usable underground storage space.
Q2: Is this suitable for heavy-load areas like roads or parking lots?
A: Yes, its PP material and structural design allow it to handle significant surface loads.
Q3: How does modular installation work on-site?
A: Workers simply interlock modules and assemble them layer by layer before sealing.
Q4: Can the system be reused if excavation is required later?
A: Absolutely. The modular units can be disassembled and reinstalled when needed.
Q5: What transportation advantages does the product offer?
A: Units are designed for stacking, minimizing shipping volume and reducing cost.
Selecting the PP modular box stormwater storage system means gaining a smart combination of strength, sustainability, and construction efficiency. The high-strength polypropylene structure ensures longevity, while the 95% void ratio provides unmatched storage volume in minimal space. Thanks to its modular design, you’ll save on labor, transport, and installation without sacrificing performance. It’s a reliable solution for engineers and project owners aiming for environmental compliance, long service life, and fast deployment across diverse construction conditions.