Large-scale Rubber Expansion Joint Design & Manufacturing
Safetech is FlexEJ's sister company located in Spain. Safetech designs and manufactures rubber expansion joints in their own dedicated facility near Bilbao. This ability to hand build rubber expansion joints means we can offer lengths, diameters, movements, materials, restraints and rating to meet your precise requirements. Pressure balanced rubber expansion joints and PTFE lined rubber expansion joints are just two of the specialty products we design and manufacture.
Manufactured Rubber Bellow
What is a Safetech Full Face Rubber Bellows?
Designed with a rubber flange and backing ring...
Full range of rubber types, backing rings in stainless steel, carbon steel - hot dipped galvanised or coated.
Typically seawater, cooling water, drinking water.
Engineered to meet your exact specification in any rubber, flange drilling and length.
WRAS (EPDM Rubbers)
How to select a large rubber bellows
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 firstname.lastname@example.org
Safetech Rubber Bellow Expansion Joints:
Safetech typically offers 1, 2, 3 or 4 convolutions in each diameter of expansion joint. All manufactured rubber bellows are available with a huge range of flange, material and restraint options:
Multiple arch engineered bellows
DN100 to DN3600+
MULTIPLE ARCH ENGINEERED RUBBER BELLOWS
Single, double, triple or quad arch
Each additional arch in the bellows provides additional movement capability. This allows very large axial, lateral or angular movements to be delivered by a single, compact expansion joint.
The length of the expansion joint can be adjusted to suit your piping layout or existing equipment meaning the full movement capacity of the bellows is available to you in all cases.
Pressure Balanced engineered bellows
DN100 to DN3000+
PRESSURE BALANCED ENGINEERED RUBBER BELLOWS
Eliminates Pressure Force
A pressure balanced rubber expansion joint uses two rubber bellows to provide the movement specified and a third, larger diameter rubber bellows to generate an equal pressure force. The larger diameter "balance" bellows is cross connected to the inlet and outlet flanges so it cancels out the pressure force of the smaller bellows. Net result no pressure force acting on your pipe, flanges or equipment.
Safetech can design and manufacture exactly what you need for your specific application so don't be constrained by catalogue dimensions or performance. We can offer reducing bellows to connect between different pipe sizes, extended lengths to eliminate additional pipe, simple spool type ends for banding, non circular...
Tie Rods, Lugs, Hinges, Collars
TIE RODS, LUGS, HINGES, COLLARS
Safetech's preferred design is to manufacture the flange backing ring in segments with integral tie rod lugs. This approach makes assembly more straight forward as each segment is lighter to handle. Having the tie rod lug integral with the backing flange reduces bending stresses and eliminates bolt on lugs altogether, again an installation advantage. Safetech can also supply one piece flanges if requested. If the joint is to be used to allow easy dismantling of line equipment we can also provide a dismantling collar on the bellows which allows the tie rods to compress the convolutions(s) to ease removal.
Linings and Liners
PTFE, Stainless Steel
LININGS AND LINERS
PTFE, STAINLESS STEEL
Safetech can provide a PTFE lining in any of its rubber bellows, the PTFE affording greater chemical resistance than the rubber. We also provide a variety of Stainless Steel "Top Hat" liners which keep the flow away from the rubber convolutions - flow straightening vanes are an option. A metal liner is a good addition for any dirty media with solid content or elevated temperatures.
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.
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 9am to 4pm weekdays 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 email@example.com.
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 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.
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.