Precision Pipework. Welded Right, First Time.
Lewis & Raby fabricates and welds bespoke pipework systems for industrial, commercial and process customers across Liverpool, Merseyside and the wider North West. From single spool pieces to complete pipework systems, every job is made in-house at our Knowsley Industrial Park workshop, to the same standard that’s kept UK manufacturers trusting us since 1948.
Or call us now: 0151 546 2882
What we fabricate
We fabricate bespoke pipework in stainless steel and carbon steel, across a wide range of nominal pipe diameters (bore sizes) and pipe schedules — from small-bore instrumentation pipework up to large-diameter process lines.
We manufacture complete pipework systems, including the welding of tees, elbows and Flanges and other pipework fittings to your specification. We also offer a soldering and gluing service for copper and plastic (PVC) pipework.
Every pipework job is bespoke and made to order. If you can draw it, we can make it.
- Carbon steel, all common grades
- Stainless steel, including 304 and 316 grades
- Copper, with soldered jointing
- Plastic / PVC, with glued jointing
We manufacture precision engineered steel structures and custom components for treatment plants, pumping stations, and water infrastructure, built to the same ISO 9001 standard that’s kept us trusted by this sector for years.
Welding & standards
All pipework welding is carried out in-house by our MIG, TIG and MMA coded welders, approved to the ASME IX standard. That means every weld on your pipework is made by a welder qualified specifically for that process, material and position.
- MIG, TIG and MMA welding processes
- ASME IX coded welders
- Stainless steel and carbon steel pipe welding
- Suitable for manufacturing and processing plants, and residential, commercial and industrial buildings
Products and projects
Real parts, for real industries — every one made to ISO 9001:2015 standard. Browse a sample
of the work we’ve delivered across agriculture, automotive, food & beverage, medical, power &
energy, and more. Don’t see your sector? We’ve likely made something similar — ask us.
Recent pipework project
Recent example: 4 inch (DN100) and 5 inch (DN125) nominal bore carbon steel pipework, fully welded with tees, 45° and 90° elbows and PN16 flanges, alongside 6 inch (DN150) and 8 inch (DN200) 316L stainless steel SCH10 pipework — all welded to the ASME IX standard.
Why choose Lewis & Raby for pipework
- 78 years of manufacturing experience behind every quote we give
- ISO 9001:2015 and ISO 14001:2015 certified
- In-house ASME IX coded welders — MIG, TIG and MMA
- Full NDT testing available, with certification
- 100% UK manufacturing, made at our Liverpool workshop
- 1 working day response on every quote
Pipework capability at a glance
| Capability | Detail |
| Materials | Stainless steel, carbon steel, plus soldering/gluing for copper and plastic (PVC) pipework |
| Bore range | Small-bore instrumentation pipework up to large-diameter process lines (state your actual min/max NB here) |
| Fittings | Tees, elbows (45° and 90°), flanges (PN16 and others on request), and other pipework fittings |
| Welding processes | MIG, TIG and MMA — all coded welders, approved to ASME IX |
| Certification | ISO 9001:2015 and ISO 14001:2015 certified manufacturing |
| Turnaround | Quotes returned within 1 working day |
| Made | 100% in-house, at our workshop in Knowsley Industrial Park, Liverpool |
Frequently asked questions
What size pipework can Lewis & Raby fabricate?
We fabricate a wide range of nominal bore sizes and pipe schedules in both stainless steel and carbon steel, from small-bore pipework up to large diameter process lines. Send us your specification and we’ll quote it.
Are your pipework welders coded?
Yes. All pipework welding is carried out in-house by our MIG, TIG and MMA welders, coded to the ASME IX standard.
Do you fabricate pipework for the water industry, food & beverage or pharmaceutical sectors?
Yes. We manufacture pipework for water treatment and pumping infrastructure, food & beverage processing, medical & pharmaceutical, oil, gas & chemical, and general industrial and commercial applications.
Where is Lewis & Raby’s pipework fabricated?
All pipework is fabricated in-house at our workshop in Knowsley Industrial Park, Liverpool — 100% UK manufacturing.
Ready to talk about your pipework project?
Send us your drawing or describe the job, and we’ll respond within 1 working day. Call us on 0151 546 2882, email enquiries@lewisandraby.co.uk, or fill out our quick enquiry.
Or call us now: 0151 546 2882