07 — Services
Water & Wastewater
Design, hydraulic analysis and surge protection for transmission pipelines, pump stations, networks and treatment plants.
01
Water & Wastewater Design
Systems are designed from a documented design basis—demands, flows, levels and standards—through to drawings, specifications and approved submittals that can be built and operated.
- 01Water transmission pipelines in carbon steel (CML) and ductile iron, including air-valve and above-ground pipeline design
- 02Pump stations: firm capacity, duty/standby split, suction arrangement and pump selection at best efficiency
- 03Reservoirs, strategic storage and distribution networks
- 04Water and wastewater treatment plants: RO / SWRO, MBR, SBR, extended aeration and ceramic membranes
- 05Design reviews, calculations, drawings, specifications and technical submittals
02
Hydraulic Analysis & Modelling
Steady-state hydraulic modelling verifies how the system performs under peak and minimum demand—and is the baseline every surge study depends on.
- 01Steady-state modelling of transmission and distribution networks
- 02Pressure and velocity profiles for all demand scenarios
- 03Pump operating-point verification with system- and pump-curve analysis
- 04Hydraulic grade line (HGL) plots, high-point and air-management checks
- 05Calibrated models, future-demand scenarios and design recommendations
03
Surge (Transient) Analysis
Rigorous transient modelling identifies surge risks, sizes protection equipment and verifies pipeline pressure ratings under worst-case scenarios—early in design, before costly retrofits.
- 01Transient simulation with Bentley OpenFlows HAMMER
- 02Pump trip, power failure, start-up and valve-closure scenarios
- 03Maximum and minimum pressure envelopes and pipe pressure-rating verification
- 04Column-separation and vapour-pocket assessment
- 05Surge protection sizing—surge vessels, air valves, surge-relief and control valves—and valve closure times
Deliverables
Typical deliverables
Each study closes with documented assumptions, verified results and practical recommendations that design, construction and operations teams can act on.
Design
Design basis report · layouts and longitudinal profiles · calculations · drawings · specifications · BOQ · technical submittals
Hydraulic analysis
Calibrated network model · pressure and velocity profiles for all scenarios · pump operating-point verification · HGL plots · system and pump curves · technical report
Surge analysis
Transient model (Bentley HAMMER) · max / min pressure envelopes · column-separation and vapour-pocket assessment · protection sizing · valve closure times · technical report
How a study runs
- 01 ScopeProject details reviewed; scope and deliverables agreed.
- 02 DataPipeline data, profiles, pump curves and design criteria collected.
- 03 AnalysisModel built and run until every scenario is assessed and documented.
- 04 Report & reviewFull technical report, with a review and clarification round.
Applications
- Transmission pipelines & distribution networks
- Pump stations, storage tanks & reservoirs
- Gravity sewers, force mains & lift stations
- Water & wastewater treatment plant hydraulics
- Power-plant cooling-water & firewater systems
Work with us
Plan your next outage, study or design with ERSSC.
Tell us about the asset, the objective and the constraints. We will respond with a clear scope and a practical way forward.