HVAC Copper End Metal Bellows
For axial compression with a BSP union swivel at both ends.
24hr Shipping
On all stock items ordered.
Mon-Thur by 2pm, 10am Fridays
Design & Manufacturing
Full in-house design & manufacture to EN / ASME / PED.
ISO14001 Accreditation
FlexEJ has an accredited Environmental Management System.
Copper End Metal Bellows
FlexEJ’s small-bore HVAC copper-ended metal axial expansion joints include stainless steel convoluted bellows for use in heating circuits and hot water supplies – WRAS approved for drinking water – and are available from from DN12 (12mm) to DN50 (50mm):
HVAC Copper End Bellows
HVAC Copper End Bellows
HVAC Copper End Bellows
HVAC Copper End Bellows
HVAC Copper End Bellows
HVAC Copper End Bellows
PRODUCT GUIDES
HVAC METAL BELLOWS
WHAT IS A COPPER-END METAL BELLOW?
BSP FEMALE UNIONS FOR THREADED CONNECTIONS AND AXIAL COMPRESSION..
Materials
Stainless steel 316 bellows with copper pipe ends.
Application
Heating water and most water services, WRAS approved for drinking water.
Rating
6 Barg @ 90°C.
Web Shop
Available online with next day delivery from our web shop.
COPPER END HVAC METAL BELLOWS
| SIZE | LENGTH | COPPER PIPE SIZE | PRESSURE RATING | MOVEMENT | IN SHOP |
|---|---|---|---|---|---|
| DN12-½” | 220 mm | 15 | 6 Barg @ 90 ºC | Axial +0/-25 mm | Yes |
| DN20-¾” | 230 mm | 22 | 6 Barg @ 90 ºC | Axial +0/-25 mm | Yes |
| DN25-1″ | 235 mm | 28 | 6 Barg @ 90 ºC | Axial +0/-25 mm | Yes |
| DN32-1¼” | 245 mm | 35 | 6 Barg @ 90 ºC | Axial +0/-25 mm | Yes |
| DN40-1½” | 250 mm | 42 | 6 Barg @ 90 ºC | Axial +0/-25 mm | Yes |
| DN50-2″ | 250 mm | 54 | 6 Barg @ 90 ºC | Axial +0/-25 mm | Yes |
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 HVAC Copper End Metal Bellow
For use on copper pipe and axial compression:
| 316 stainless steel bellows | Copper pipe end |
| Fully welded | Rated 6 Barg @ 90°C |
| Minimum length design | For axial compression |
Specifications
HVAC Copper End Metal Bellows Finders and Calculators
We have a couple easy to use tools and calculators to help you find the right HVAC Copper End Metal Bellows from our online stock with next-day UK delivery. See below. Our Thermal Expansion Calculator for Piping might also helps you estimate the increase in length of a pipe run with temperature. Our Advanced Bellows Finder is a quick way to navigate our stock range of bellows, both metal and rubber. With just a few choices you can arrive at the appropriate selection – criteria include pipe size, type, media compatibility, installation length, pressure rating, pipe connection type, conformance and movement axial, lateral and angular. All the products are in the online store with 24hr shipping as standard. If you’re not sure what flange you need, our handy Flange Finder should also be useful.
Stock HVAC Copper End Metal Bellows Finder
Do search for copper end metal bellows by pipe size, intended media and/or connection hardware to see FlexEJ’s stock bellows options below but don’t hesitate to call us on 01384 881188 or email us for more bespoke or OEM options or if you need any advice at all.
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 Copper End Metal Bellows Product Comparison Chart
Is the HVAC Copper End metal bellows the best option for your application? Two potential alternatives to consider:
WRAS approved 
WRAS approved bellows
Is this bellow approved for use in all UK public mains water supplies?
Potable water Potable water
Is this bellow approved for water systems used for drinking and food preparation?
Rating barg/°C Pressure & temperature
What is the required pressure rating (in barg) compared to temperature rating for this bellow?
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.