Building Water Supply Network Projects

Building Water and Sewerage Network Projects

Building water and sewerage network projects are required for any urban operation that interferes with water supply networks or wastewater drainage systems. Their main goal is to ensure the safe and quality water supply, as well as to allow the efficient drainage of wastewater. These projects must be submitted to local authorities, both for new constructions and for rehabilitations.

 

Documentation and Regulation

These projects include written and drawn documents, following regulatory guidelines.

• Based on Decree-Law No. 23/95 and standard EN 806-3.

• Include hydraulic calculations and material specifications, respecting architectural and local specifics.

 

Wastewater Drainage Network

• Sized according to regulatory standards and flow rate curves.

• Includes calculations for pipe diameters and risers.

• Follows technical standards to ensure efficient flow.

 

Water Supply Network

• Designed to meet consumption needs and service pressures.

• Sized based on the use of devices and energy demands for water heating.

• Must follow the guidelines of the EPAL building network manual.

 

Recommended Materials

• PVC: Resistant to corrosion, low cost, and easy to install.

• PEAD: High impact resistance, ideal for underground installations.

• Galvanized Steel: Robust, but more prone to internal corrosion over time. Often used in external pipes.

Hot water branches must be insulated to prevent heat loss.

 

Qualified Professionals

Only qualified engineers or technical engineers are allowed to prepare these projects.

Recognition from institutions such as the Order of Engineers and the National Association of Technical Engineers is required.

 

Installation Tests

After installation, a hydraulic test is performed for 24 hours to check for leaks and pressure.

Once the test is approved, the trenching is covered, and construction continues.