Pressure Zones Design (Hydraulic Zoning Phase)
At the pressure zoning stage, the distribution network is structured to ensure stable and controlled hydraulic conditions across areas with different elevations and demand patterns. Proper pressure zone design is essential to protect infrastructure, maintain service quality, and optimize energy use within the system.
1. Elevation data availability
☐ Reliable elevation model of the service area available
Accurate topographical information forms the foundation for pressure zone design. Elevation differences directly determine pressure variations within the network.
2. Hydraulic pressure calculations
☐ System-wide pressure calculations completed
Hydraulic analysis is carried out to determine pressure conditions under different flow scenarios. This ensures that the system performs reliably during both average and peak demand.
3. Minimum pressure compliance
☐ Minimum required pressure achieved in all supply areas
All consumer zones must receive sufficient pressure to ensure reliable water delivery, including upper floors of buildings and critical infrastructure.
4. Maximum pressure control
☐ Maximum allowable pressure levels verified and controlled
Excessive pressure is identified and mitigated to prevent pipe damage, leakage, and accelerated wear of network components.
5. Pressure reduction strategy
☐ Pressure reduction measures defined where necessary
Where pressure exceeds acceptable limits, appropriate control measures such as valves or zoning strategies are planned to stabilize system conditions.
6. Pumping station integration
☐ Pumping stations evaluated and integrated into design
Booster stations are assessed for areas requiring additional hydraulic energy, ensuring consistent pressure delivery across all zones.
7. Reservoir and storage integration
☐ Storage facilities integrated into pressure zone concept
Reservoirs and tanks are incorporated into the hydraulic design to stabilize pressure fluctuations and balance demand variations.
8. Safety margins and resilience
☐ Hydraulic safety margins included in all pressure zones
Design includes operational buffers to accommodate demand peaks, system variations, and future network expansion, ensuring long-term reliability.