SP Engineering Consultancy is the dedicated engineering division of Shirley Parsons, providing expert support to organisations across the water sector.
At SP Engineering Consultancy, we provide water companies and delivery partners with end-to-end pumping station design capability, including feasibility studies, hydraulic calculations, P&ID development and fully coordinated multidisciplinary design packages under Option A and NEC3.
Pumping stations are vital assets within the UK’s water and wastewater networks, enabling controlled, efficient and resilient movement of water where gravity alone cannot achieve the required flow.
Whether supporting potable transfer, wastewater conveyance or strategic resilience schemes, these systems require carefully coordinated engineering to ensure reliability, compliance and operational performance.
Feasibility: Establishing the Right Technical Solution.
Robust feasibility work lays the foundation for successful design and delivery. Our engineering teams support clients in making informed decisions by assessing:
Technical & Hydraulic Viability
- Required duty points and pressure needs
- Static/dynamic head calculations
- Expected flow rates and operational patterns
- Evaluation of pumping configurations and control strategies
Site & Constructability Considerations
- Access limitations and land constraints
- Environmental, geotechnical and permitting factors
- Integration with existing networks and infrastructure
Whole-Life Cost & Operational Efficiency
- Energy consumption modelling
- Maintenance access and asset longevity
- Future-proof design for AMP8/AMP9 requirements
By resolving key questions early, we help clients align technical, commercial and programme objectives.
Hydraulic Calculations: Ensuring Performance and Compliance.
Hydraulic analysis is central to pumping station design. We provide accurate and detailed calculations that support safe, efficient and compliant system operation. Our capability includes:
Flow & Pressure Analysis
- Friction and minor loss calculations
- Velocity checks within rising mains
- Verification of minimum/maximum pressures
- Selection of appropriate pipe diameters and materials
Transient & Surge Assessment
- Pressure wave behaviour during pump start/stop
- Identification of surge risks and mitigation needs
- Specification of air valves, soft starts, surge vessels or control strategies
Pump Selection & System Integration
- Matching pump curve and system curve performance
- Energy efficiency and lifecycle considerations
- Duty/assist/standby configurations
These calculations prevent operational failures, protect assets and ensure long-term resilience.
P&IDs: The Blueprint for Safe, Coordinated Delivery.
A well-developed Piping and Instrumentation Diagram (P&ID) provides the technical blueprint for pumping station design. It sets out how the system will function, how components interact, and how safety is maintained throughout operation.
Our P&ID packages typically include:
- Pump sets, isolation valves and NRVs
- Flow, pressure and level instrumentation
- Surge protection systems
- Electrical interfaces, MCC connections and control panels
- Alarm sequences, interlocks and operational logic
- Clear process flow direction and system configuration
High-quality P&IDs reduce ambiguity, streamline design coordination and support smooth construction and commissioning.
A Multidisciplinary Design Approach.
Pumping station delivery requires collaboration across multiple disciplines. We provide integrated design capability across:
- Mechanical Engineering – pumps, valves, pipework and lifting arrangements
- Electrical Engineering – MCCs, VSDs, power supply and control architecture
- Civil Engineering – wet wells, chambers, foundations and structural works
- Process Engineering – operational logic, treatment interfaces and system behaviour
With Shirley Parsons acting as a single delivery partner, clients benefit from coordinated documentation, a consistent design philosophy and clear accountability.
“Pumping stations sit at the heart of reliable water movement. Getting feasibility, hydraulics and P&IDs right at the start is what ultimately de-risks delivery. Our role is to provide clients with clarity, competency and a fully coordinated design solution they can trust.”
Speak with us about Pumping Station Design Support.
Whether you require feasibility work, hydraulic calculations, P&ID development or a complete multidisciplinary design package, we can help.
