Introduction to Ladders & Manhole Shaft Ladders – Zhengzhou Yayuan Technology

Underground manhole ladder installation for sewage and pipe shaft safety access

Zhengzhou Yayuan Technology offers professional manhole shaft ladders and industrial climbing ladders, including fixed and removable types. Our corrosion-resistant shaft ladders are widely used in municipal sewage wells, underground pipelines, water wells and industrial facilities, ensuring safe and stable vertical access and maintenance for engineering operations.

Decoding the Future of Irrigation: Zhengzhou Yayuan CJ100 Smart Irrigation Decoder‑Controller

CJ100 smart irrigation decoder controller for large garden farm irrigation

The CJ100 smart irrigation decoder controller adopts advanced dual-line HSBUS technology, supporting 100 irrigation stations and 3km ultra-long-distance stable control. Featuring IP65 waterproof protection, mobile APP remote management and strong expandability, it provides a professional intelligent irrigation solution for farms, orchards, golf courses and municipal green spaces.

Infiltration Trench – The “Green Guardian” of Urban Flood Prevention

Rainwater infiltration trench for urban flood prevention and sponge city construction

The rainwater infiltration trench is an eco-friendly green facility for urban flood control and stormwater management. It effectively reduces urban waterlogging, replenishes groundwater, and delivers durable, cost-effective drainage solutions for municipal roads, residential communities, commercial parks and urban green spaces.

Motorized Ball Valve Communication Interface Protocol

Motorized electric ball valve for large flow and sediment-tolerant irrigation pipelines.

(Smart Irrigation RS485-Modbus-RTU) This document details the Modbus-RTU and 4G-MQTT communication protocols for solar-powered smart motorized UPVC ball valves used in modern agricultural and commercial irrigation systems. The system operates in a Master-Slave polling architecture, where the Master acts as the main irrigation controller or cloud platform, and the Slave corresponds to individual valve actuators. […]