System
Rehab
Medium
Water
Application area
Utility
Line type
Water main
Country
Macao
Situation
The water main runs underneath a main highway in one of the busiest locations in Macao. Traditional excavation would not only be time-consuming, but also environmentally sensitive. The area is also a popular location for tourists with listed buildings and the iconic Lisboa Casino. The original host pipeline required extensive cleaning to prevent any risk of failure. The client decided to preventively renovate the main using the Primus Line® system.
Actual condition of the main was uncertain because of its limited accessibility
Technical details
Material of host pipe
Asbestos cement (AC) and steel pipe
Diameter of host pipe
DN 400
Transported fluid
Potable water
Operating pressure
6 bar
Total length
35 m
Number of sections
1 installation section
Number of bends
8 bends of up to 45°
Installation time
1 day
Macao has one of the most densely populated inner city areas. The permit to work requires strict adherence to shorter working times and environmental protection.
After careful consideration, Primus Line® was the chosen application: The smaller footprint, speed of installation allowed the client to return the system to full service within a short period of time.
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