Gongshu District, Hangzhou City
2026-05-12
Diameter/Material/Year
DN200/Steel Pipe / 2018 Year
Check length
140 meters
Key Findings
Severe deposition and corrosion
Detection Suggestions:
Suggest cleaning
Project Overview
This test pipeline is a DN1200 steel water supply pipe that has been in service for 8 years, with a total length of 2000 m and a burial depth of 2 m. The line includes 18 bends and 13 gate/butterfly valves, presenting complex operating conditions such as downward bends. During testing, the pipe section was isolated with no internal pressure or flow, simulating complex inspection scenarios for aging main distribution networks.
Real Photos
Diagram of Detection Location
On-site inspection
Corrosion
Corrosion and Deposits