Design and Manufacture of Pressure Vessels for Wastewater and Potable Water Treatment, UK
Precision-engineered pressure vessels, designed for critical compliance in waste and potable water treatment. Trusted by contractors worldwide.
At LTi Vessco, we specialise in the design and manufacture of pressure vessels for wastewater and potable water treatment – combining robust engineering, DWI-approved materials, and sector-specific insight. Our precision-engineered pressure vessels support complex treatment systems where long-term reliability is essential.
Why Choose LTi Vessco
• DWI Approved Vessels and Tanks: We supply Drinking Water Inspectorate (DWI) approved carbon steel tanks and vessels, lined with certified coatings to ensure full compliance with UK potable water standards.
• Tailored for Risk Mitigation: Every unit is engineered to reduce operational risk, improve process reliability, and meet the expectations of UK water authorities.
• Water Sector Specialists: With long-standing supply relationships with Welsh Water, Thames Water and Wessex Water, we understand the operational and compliance challenges facing the industry.
• Seamless Integration: We work directly with contractors and end clients to ensure all pressure vessels are designed for easy integration into both new and legacy systems.
Water Sector Projects & Capabilities
LTi Vessco is a trusted supplier to the UK water industry, delivering bespoke and high-volume vessels for:
• Municipal potable water treatment plants
• Waste water treatment systems with DAF, RGF and flocculation tanks
• GAC vessels up to 4.5m diameter and 9.5m height
• Carbon steel, stainless steel, duplex and super duplex materials
• Tank capacities from 0.5 litres to 200,000 litres
All systems are manufactured to meet evolving water regulations, ensuring your project is future-ready.
Certified to Industry Standards
• DWI Certified since 2019, recertified in 2024
• ISO 1090 Certified for UKCA marking of tanks, ladders and support structures
• Extensive in-house coating, testing and QA facilities
• ISO 9001, 14001 and 45001 management systems across operations
Manufacturing & Technical Capabilities
Our facilities in South Wales deliver scalable, responsive production:
• High-Volume & Bespoke Manufacturing – From one-off vessels to runs of 20, 30 or 40 units with short lead times
• Full Pressure Vessel Design – Engineered to spec by our in-house team
• Advanced Welding Techniques – TIG, MIG, Sub-Arc and Keyhole Plasma
• Material Testing & Inspection – Visual, Radiographic, Hydrostatic, Ultrasonic, Dye Pen, and more
• Robotic & Manual Fabrication – Cost-efficient and highly repeatable
• Surface Finishing – Potable and wastewater-safe coatings and linings
With over 50,000 sq ft of workshop space, we handle vessels up to 6m x 20m x 4.8m high, tailored to your treatment plant’s exact requirements.
Our Promise to the Water Sector
As a leading wastewater engineering company, we deliver more than just hardware, we provide certainty. Every pressure vessel for potable water treatment or wastewater processing is designed to meet UK regulations from the ground up. From documentation to delivery, we support every phase with technical clarity and integrity.