Polypropylene is commonly used for modular rainwater tank components because it can be injection moulded into repeatable structural forms and handled efficiently on site. Material suitability, however, depends on resin grade, recycled content, temperature, chemical exposure and the evidence required for the project.

System role and suitable projects
This page focuses on PP material specification. The legacy listing identifies black PP and a broad working-temperature range; buyers should confirm the current material declaration and relevant test documents for their application.
- Specifications requiring PP material identification
- Projects comparing virgin and recycled resin options
- Chemical or temperature exposure reviews
- Procurement packages requiring traceable product documentation

Module specifications
The following values are the legacy product specifications for this module. Structural capacity, cover depth, traffic loading and applicable test requirements must be checked for the actual project design.
| Type | Rainwater Collecting Modular |
| Place of Origin | Fujian China(Mainland) |
| Brand Name | LEIYUAN |
| Material: | PP |
| Color: | Black |
| Dimension | 680 L*410 W*450Hmm |
| Total Volume: | 0.125m3 |
| Tank per m3 | 8 |
| Weight: | 8kg/module |
| Working Temperature: | From -30℃ to +120 ℃ |
| Pressure Strength: | 25tons/sqm |
| HS Code: | 3925900 |
| Certificate: | ISO9001:2008 |
How the modular tank works
The project team defines the expected environment and documentation, then confirms resin type, additives, manufacturing controls and applicable test data with the supplier. Structural and durability checks are completed for the installed tank system.

Installation planning
- Confirm runoff volume, design storm, inflow and discharge requirements.
- Check excavation, groundwater, soil bearing conditions and required cover depth.
- Prepare a level base and assemble modules according to the approved layout.
- Wrap the structure with the specified geotextile and/or waterproof membrane.
- Connect inlet, outlet, ventilation, inspection and overflow components.
- Backfill in controlled layers and commission the system before operation.


Packing and project support
| Detail: | Size | Packing |
| 680x410mm | 8pcs/bundle | |
| 450x410mm | 10pcs/bundle | |
| Shipping: | 90 Cubic Meter for 1X20′ GP(By bundle) |
Module quantities and container loading should be confirmed from the final tank geometry and current packing plan. Leiyuan can review project volume, module layout and shipping requirements for professional buyers.


Information required for a quotation
Send the project location, required storage volume, application, installation depth, surface load, groundwater level, drawings and delivery destination. This allows the module and system build-up to be checked before quotation.