Industrial Metal Expansion Bellows
Fully configurable: materials, end style, hardware from DN40 to DN400.
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On all stock items ordered.
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Design & Manufacturing
Full in-house design & manufacture to EN / ASME / PED.
ISO14001 Accreditation
FlexEJ has an accredited Environmental Management System.
Industrial Metal Bellows
FlexEJ’s industrial metal bellows range allow us to configure a metal expansion joint for your application based on a standard convolution matched to any weld end or flange in the materials of your choice. Length to order.
Industrial Short Axials
Industrial Long Axials
Industrial Pump Bellows
PRODUCT GUIDES
INDUSTRIAL METAL BELLOWS
WHAT ARE INDUSTRIAL METAL BELLOW?
FLEXEJ INDUSTRIAL METAL BELLOWS OFFER…
Design
Extensive range of configurable metal bellows suitable for a wide range of industrial services.
Performance
High quality EJMA calculated bellows manufactured by punch forming in 316 stainless steel.
Application
FlexEJ will help you select the right bellows for the application.
Configurable
Flanges, weld ends, materials, lengths can all be specified to order.
SHORT AXIAL INDUSTRIAL METAL BELLOWS
| SIZE | LENGTH | PRESSURE RATING | MOVEMENT | IN SHOP |
|---|---|---|---|---|
| DN040-1½” | 180 to 300 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-15 mm | |
| DN050-2″ | 180 to 300 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-15 mm | |
| DN065-2½” | 180 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-15 mm | |
| DN080-3″ | 180 to 500 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-15 mm | |
| DN100-4″ | 180 to 500 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-15 mm | |
| DN125-5″ | 180 to 500 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-15 mm | |
| DN150-6″ | 180 to 500 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-15 mm | |
| DN200-8″ | 220 to 500 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-15 mm | |
| DN250-10″ | 220 to 500 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-15 mm |
LONG AXIAL INDUSTRIAL METAL BELLOWS
| SIZE | LENGTH | PRESSURE RATING | MOVEMENT | IN SHOP |
|---|---|---|---|---|
| DN100-4″ | 210 to 450 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-30 mm | |
| DN125-5″ | 210 to 480 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-35 mm | |
| DN150-6″ | 250 to 500 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-35 mm | |
| DN200-8″ | 250 to 550 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-35 mm | |
| DN250-10″ | 250 to 600 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-35 mm | |
| DN300-12″ | 280 to 600 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-40 mm | |
| DN350-14″ | 280 to 600 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-40 mm | |
| DN400-16″ | 300 to 600 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Axial +/-40 mm |
INDUSTRIAL PUMP BELLOWS
| SIZE | LENGTH | PRESSURE RATING | MOVEMENT | IN SHOP |
|---|---|---|---|---|
| DN050-2″ | 130 to 330 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN065-2½” | 130 to 390 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN080-3″ | 130 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN100-4″ | 130 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN125-5″ | 150 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN150-6″ | 150 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN200-8″ | 200 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN250-10″ | 200 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN300-12″ | 200 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN350-14″ | 200 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm | |
| DN400-16″ | 200 to 400 | 16 Barg @ 180 ºC to 12 Barg @ 300 ºC | Lateral +/-3 mm |
How to specify a metal expansion joint
We design and manufacture metal expansion joints so you are not restricted to our range of standard products, some of which are available in our web shop. For simpler applications a standard product may be entirely suitable but if not we will design to meet your exact requirements.
FlexEJ’s Industrial Metal Bellows
FlexEJ has the following ranges of industrial metal bellows available:
Long Axial Industrial bellows
DN100 to DN300
LONG AXIAL INDUSTRIAL BELLOWS
Fully Configurable
FlexEJ’s Long Axial range offers large axial movements. Stainless Steel 316 bellows, designed to EJMA, manufactured by punch forming together with flanges to any specification and material or pipe ends in any material. Length to order. These expansion joints are rated for applications up to 12 Barg @ 300°C.
FlexEJ can design and build metal expansion joints to your exact specification, details here…
Industrial Short Axial metal bellows
DN40 to DN250
INDUSTRIAL SHORT AXIAL METAL BELLOWS
Fully Configurable
FlexEJ’s Short Axial range offers moderate axial movements. Consequently they are shorter end to end at minimum length than the Long Axial range. Stainless Steel 316 bellows, designed to EJMA, manufactured by punch forming together with flanges to any specification and material or pipe ends in any material. Length to order. These expansion joints are rated for applications up to 12 Barg @ 300°C.
FlexEJ can design and build metal expansion joints to your exact specification, details here…
Industrial Pump bellows
DN50 to DN400
INDUSTRIAL PUMP BELLOWS
Fully Configurable
FlexEJ’s Pump range offers small lateral movements suited to pump alignment and vibration applications. Available as tied and untied. Stainless Steel 316 bellows, designed to EJMA, manufactured by punch forming together with flanges to any specification and material or pipe ends in any material. Length to order. These expansion joints are rated for applications up to 12 Barg @ 300°C.
FlexEJ can design and build metal expansion joints to your exact specification, details here…
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
HVAC & Industrial Bellows Comparison Charts
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
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
Frequently Asked Questions
A. Our Flange Finder contains details for many common flanges. Typically, to be able to make the identification you need to know the bore size or outside diameter and number of bolts. For technical assistance contact us or use our Live Chat facility.
A. Yes, FlexEJ has full design capability for engineered metal expansion joints and can work to any recognised standard – typically EJMA, B31.3/Appendix X, EN14917 plus PED and/or other customer specifications. Engineered rubber expansion joints are typically designed to meet the FSA guidelines plus PED and/or other customer specifications For technical assistance please contact us or use the Live Help link on this page.
A. Yes, if you have the details we can normally offer an equivalent, our FAQ here gives the information we will need for a full selection. For technical assistance please contact us or use the Live Chat link on this page.
A. To identify an existing expansion joint we need to know: nominal bore, overall length and flange type plus service, temperature, pressure and required movement if known. Try our Flange Finder to help identify the flange and you can send us a picture of the existing part using the Contact us form. For technical assistance please contact us or use the LIVE CHAT link on this page.
A. Yes, our MRCA copper ended metal expansion joints also have WRAS approval. We laso have DWI approval for stainless steel expansion joints. For technical assistance please contact us or use the Live Chat link on this page.