Water & Wastewater Engineering Support
Water and wastewater assets operate in harsh, demanding conditions: corrosive environments, continuous duty cycles, variable flows, and equipment that must remain safe and reliable over long service life. Failures and downtime can be expensive and disruptive, particularly where access is limited and planned shutdown windows are tight. Barair Systems Limited provides practical mechanical engineering support for the water industry; focused on reliability, retrofit design, verification, and documentation that supports safe implementation. We work with OEMs, contractors and asset owners on equipment upgrades, structural checks, bespoke mechanisms, and evidence packs for sign-off.
Typical problems we solve in water & wastewater
- Mechanical equipment reliability issues (misalignment, wear, repeated breakdowns)
- Retrofits and modifications needed within tight shutdown windows
- Structural supports and frames requiring verification (stiffness, stability, deflection)
- Corrosion-driven degradation and the need for material/process improvements
- Poor maintainability: awkward access, unsafe manual handling, difficult adjustment
- Equipment needing better protection against contamination, grit, and washdown
- Requirements for clear documentation and evidence for approval (internal, client, or insurer)
- Integration of new components into existing assets where interfaces are poorly documented
How we work
Define the objective and constraints
We clarify what must improve (reliability, throughput, safety, maintainability), the operating envelope, and constraints such as access, lifting, and downtime windows.Site review and evidence capture
We review the asset in context: interfaces, load paths, wear points, corrosion, alignment, and operator/maintenance practice.Root cause thinking (when there’s a recurring issue)
We identify the real failure drivers: stiffness gradients, load path issues, fatigue at details, tolerance stack, contamination, thermal growth, or vibration.Modification options with practical pros/cons
We propose feasible solutions with implementation planning in mind, not just an idealised redesign.Engineering design and verification
We produce buildable design outputs and apply targeted checks (hand calculations and/or FEA) to confirm strength, stiffness, joints, and stability where needed.Supplier coordination and installation planning
We support fabricators/installers and produce staged plans aligned to shutdown windows.Commissioning support and close-out
We assist with commissioning, performance verification, and “as modified” close-out notes where appropriate.
Deliverables (what you receive)
Depending on scope, typical outputs include:
Findings summary and recommended retrofit/modification route
Fabrication/machining-ready drawings and installation notes
Verification checks (strength, stiffness, deflection, stability; FEA summary where appropriate)
Bolt/weld/joint checks where relevant
Material selection and corrosion-mitigation recommendations (where applicable)
Staged installation plan aligned to shutdown windows and site constraints
Close-out summary and “as modified” documentation notes
What we need from you (inputs)
To move quickly, we typically request:
Photos/video of the asset and installation (especially interfaces and access constraints)
Existing drawings/manuals if available (or we can capture key dimensions on site)
Operating duty: loads, speeds, duty cycle, any shock events, environment details
Maintenance/failure history (what’s been tried, what changed, time-to-failure)
Shutdown window constraints and permit requirements
Any client documentation requirements for approval/sign-off
Typical project examples in the sector
Retrofit design for scraper bridges, rotating equipment, and support structures
Verification of fabricated frames, walkways, brackets and equipment supports
Reliability improvements via alignment strategy, stiffness improvements, and wear part redesign
Design modifications to reduce jamming, improve cleaning access, and improve maintainability
Evidence packs to support contractor/client approval and reduce delivery risk
Related case studies
Typical deliverables
Findings summary and recommended retrofit / modification route
Fabrication/machining-ready drawings and installation notes
Verification checks where required (strength, stiffness, deflection, stability; FEA summary if appropriate)
Joint checks where relevant (bolts/welds, interfaces, load paths)
Material and corrosion-mitigation recommendations where applicable
Staged installation plan aligned to shutdown windows and site constraints
Close-out summary and “as modified” notes where required
Request a design review
If you need engineering support for water and wastewater assets; whether that’s retrofit design, verification, or a reliability-focused improvement project, request a design review. We’ll define the objective and constraints clearly, then deliver buildable outputs and evidence you can use for approval and implementation.