PP modular tanks are reshaping stormwater selection, replacing traditional concrete basins with faster installation, high void ratio and heavy load capacity. Yayuan supplies complete rainwater harvesting systems for municipal, residential and industrial projects, with proven domestic and overseas project references.
This case shows how Zhengzhou Yayuan Technology integrated a PP module rainwater harvesting system into Kaifeng Science Popularization Plaza. The underground storage system manages storm runoff and supplies reused water for irrigation and pavement washing. Different from ordinary municipal projects, this sponge facility serves as an open-air science exhibit, helping visitors visualize the full “infiltration, retention, storage, purification, reuse and discharge” cycle of sponge cities.
This double lock nut coupling adopts bidirectional double locking design, realizing 360° mechanical interlocking seal. Stable under 0.3MPa water pressure with ultra-low leakage rate. Hand tighten without wrench, reusable, anti-UV and low temperature resistant. Widely used for 16mm drip tape and PE pipe connection in field, greenhouse and orchard drip irrigation to lock every drop of water and protect harvest.
Zhengzhou Yayuan Technology delivered detailed design and construction of the rainwater harvesting system for Shenyang Zhongzhi Xiyue Cuiyuan. Adopting high-strength cold-resistant PP modules, this sponge city project addresses freeze-thaw risks and complex underground pipelines in Tiexi old town. Collected rainwater is reused for irrigation and road cleaning, easing municipal drainage pressure and supporting low-carbon urban renewal in Northeast China.
Rainwater harvesting is shifting from construction-oriented to performance-driven. Smart flow meters including Doppler ultrasonic, partial-fill electromagnetic and open-channel types solve difficult metering problems of non-full gravity pipelines. It realizes real-time runoff monitoring, sediment blockage warning, retention tank intelligent scheduling and traceable rainwater reuse, providing reliable basic data for sponge city performance assessment.
The focus of smart irrigation systems shifts from pump hubs to field ends. Gate valves including smart ball valves and irrigation sluice gates evolve from simple mechanical switches into IoT data nodes. Low power consumption, metering accuracy and reliable communication become core requirements for large-scale deployment on high-standard farmland.
