MANUFACTURED AND CUSTOM METAL EXPANSION JOINTS MADE TO ORDER
From specialist DN12 copper-ended metal bellows to full-design and engineering up to DN2500.

Metal Bellows
FlexEJ offers a range of standard metal expansion joints as well as a full UK in-house manufacturing capability - typically to EJMA/B31.3/PED. Diameters from 25mm to 2500mm, design to specification.

Metal Bellows
What is a metal bellows expansion joint?
Off the shelf to full design and manufacture...
- Design
Extensive range of stock/configurable metal bellows and fully engineered expansion solutions. - Performance
High quality EJMA calculated bellows manufactured by punch forming in stainless steels, Nickel alloys, Exotics. - Application
FlexEJ are here to help from concept through to project delivery . - Projects
Full documentation, certification, NDT and engineering support.
How to specify a metal expansion joint






Can't see what you want? Need help?
Call us. Or use Live Chat.
For instant advice. We can custom-design and engineer almost any expansion joint you need for delivery in the UK or worldwide. Call our expert team on +44 (0) 1384 881188. Or email us sales@flexej.co.uk
FlexEJ's Metal Bellows Expansion Joints
FlexEJ has the following ranges available which cover all applications from simple HVAC up to refinery, power and nuclear:
INDUSTRIAL METAL BELLOWS
Fully Configurable
FlexEJ's industrial metal bellows range is based around high performance bellows designed to EJMA and is fully configurable. You can then specify any flange type and material or weld end pipe type and material plus any end-to-end length within the design range. Rated up to 12 Barg @ 300 °C and backed by our engineering team.
PHARMACEUTICAL METAL BELLOWS
Aseptic Self Draining
FlexEJ's pharmaceutical metal bellows design allows metal bellows to be deployed in lines that must be fully cleaned and aseptic. Self draining and manufactured from high surface finish stainless steel.
Metal bellows manufacturing
DN25 to DN2500+
MANUFACTURED METAL BELLOWS
Full design to EJMA/B31.3 or EN14917
FlexEJ design and manufacture fully engineered expansion joints. We work to all international codes and in materials to suit all applications including CrMO, Duplex 625, 800 and 825. Tied, hinged, gimbal, pressure balanced, refractory lined, liners, covers, single and multi ply and two ply testable bellows - we have the experience.
Got a quick question?
Use Live Chat. Or call us.
For instant advice use the Live Chat link to message one of the sales team. Or call them direct on +44 (0) 1384 881188
HVAC and Industrial bellows comparison chart
What is the best pump or axial bellow for your application? Four potential alternatives to consider:
Stainless steel bellow Bellows Material and Design
Is the bellows Stainless Steel and calculated to EJMA?
Flow Liner Flow Liner
Is a Flow Liner included?
Any flange / weld end Any Flange or Weld End
Is any common flange type or pipe weld end available?
Range of lengths Range of lengths
Can an overall length greater than minimum be specified?
Rating barg/°C
Not sure what flange spec you need?
Use the FlexEJ Flange Finder to find out
FlexEJ stock a full range of specs and types for our bellows. Or call our expert team on +44 (0) 1384 881188.
Who can you talk to?
Try our sales and customer service team on 01384 881188
They don't bite. And they know what they're talking about. Call the team any time from 8:30am to 3:30pm weekdays, 12:30pm Fridays or use LIVE CHAT if you would prefer a quick text answer. For more complex queries, send us any pro-forma documentation using the get a quote form below or email us sales@flexej.co.uk.
Can't quite find the right bellow?
Try the FlexEJ Bellows Finder
Or call our expert team on +44 (0) 1384 881188
Frequently Asked Questions
Need a detailed quote?
Get A Quote. On us.
We will provide full technical details together with, pricing and shipping timescales. For more complex engineered quotes, preliminary sketches and calculations will be available.
Got a quick question?
Use Live Chat. Or call us.
For instant advice use the Live Chat link to message one of the sales team. Or call them direct on +44 (0) 1384 881188
Get A Quote
Please complete the short form here and we'll get back to you within 24hrs Monday to Friday (quicker if marked urgent).
Alternatively, you can also call our expert team directly on +44 (0) 1384 881 118 from 8:30AM to 4:30PM weekdays (12:30PM Fridays), who will be only too pleased to talk through your requirements and technical queries over the phone.
Visitors are also welcome Monday to Friday although please get in touch beforehand to let us know you're coming.

Industry experience
FLEXEJ Ltd was formed in 2002 by two professional engineers who brought together an already highly respected design capability with business and commercial skills gained in large multinational companies.- Our focus has always been on application and design – helping our customers find the best value solution.
- We have a strong engineering and manufacturing team with experience in petrochemicals, refining, nuclear, desalination though to HVAC.
- The team is also very familiar with meeting complex requirements for documentation, in process NDT and test on projects. We have supplied many large end-users such as EDF, Exxon, Shell, Reliance & QatarGas working with major contractors such as JGC, Foster Wheeler & Technip.

