Pressure Vessels for Water & Wastewater Treatment

Potable Water and Wastewater Pressure Equipment Manufacturing in the UK

LTi Vessco designs and manufactures pressure vessels, tanks, and process equipment for potable water and wastewater treatment in the UK. From our facility in Bridgend, South Wales, we deliver compliant, precision-fabricated equipment built for long-term reliability in critical treatment systems - where documentation, coatings/linings, and material compliance are essential.

We work with contractors and end users to supply installation-ready vessels that integrate cleanly into new-build and upgrade programmes.

Water-Sector Manufacturing Capability

Water treatment applications demand dependable performance, corrosion protection, and compliance with sector-specific requirements. Our capability supports both bespoke equipment and repeatable production runs, with controlled fabrication routes and verified quality throughout manufacture.

Where potable duty is required, we manufacture using DWI-approved materials and certified coating systems to meet UK water standards.

What We Supply for Water Treatment Projects

LTi Vessco manufactures pressure equipment and vessels used across municipal water and wastewater treatment, including:

Potable water treatment plant vessels and tanks
Wastewater treatment vessels, including systems incorporating DAF, RGF and flocculation tanks
GAC vessels up to 4.5 m diameter and 9.5 m height
Tank and vessel capacities from 0.5 litres to 200,000 litres

We work across carbon steel and stainless steel, and can also support duplex and super duplex material specifications where required by duty and environment.

Designed for Compliance and Risk Reduction

Water-sector projects are defined by strict compliance, operational uptime, and whole-life performance. We support this by delivering equipment that is:

Designed for straightforward integration into both new and legacy treatment systems
Engineered to reduce operational risk, improve reliability, and support maintainability
Manufactured with controlled traceability and documentation, aligned to project requirements

We also bring practical sector insight through long-standing supply relationships with Welsh Water, Thames Water and Wessex Water, helping ensure requirements are understood early and delivered consistently.

Certifications and Standards for the Water Industry

LTi Vessco operates to recognised standards and governance expected in regulated water projects, including:

DWI Certified since 2019, recertified in 2024
BS EN 1090 certification for UKCA marking of tanks, ladders and support structures
ISO 9001, ISO 14001 and ISO 45001 management systems
Extensive in-house coating, testing and QA capability to support compliant delivery

Manufacturing, Welding, Coating and Verification

Our South Wales facilities provide scalable production for the water sector:

High-volume and bespoke manufacture - from one-off vessels to runs of 20, 30 or 40 units with responsive lead times
Pressure vessel design support aligned to specification and project requirements
Welding and fabrication capability across TIG, MIG, Sub-Arc and Keyhole Plasma processes
Inspection and testing routes including visual inspection, radiography, hydrostatic testing, ultrasonic testing and dye penetrant (as specified)
Surface finishing for water duty, including potable- and wastewater-suitable coatings and linings

With over 50,000 sq ft of workshop space, we handle vessels up to 6 m x 20 m x 4.8 m high, tailored to your treatment plant’s layout and operational requirements.

Our Commitment to the Water Sector

For water and wastewater projects, success depends on getting compliance and integration right first time. We deliver more than a fabricated vessel - we provide certainty through controlled manufacture, clear documentation, and equipment engineered for long-term service in critical infrastructure.