Pipe Expansion Joints & Rubber Bellows
Rubber bellows to reduce pipeline stress, absorb vibration, and compensate for thermal expansion. EPDM with zinc or 316SS flanges.
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All Pipe Expansion Joints
Rubber bellows from leading manufacturers. Zinc-plated or 316SS flanges available.
316SS Flanged FSF Single Sphere Rubber Expansion J
316SS Flanged FSF Single Sphere Rubber Expansion J
Concentric Reducing Rubber Expansion Joint with Ta
Concentric Reducing Rubber Expansion Joint with Ta
Control Rod - Rubber Expansion Joint Accessory
Control Rod - Rubber Expansion Joint Accessory
Double Arch Rubber Expansion Joint - unfilled arch
Double Arch Rubber Expansion Joint - unfilled arch
Double Filled Arch Rubber Expansion joint
Double Filled Arch Rubber Expansion joint
Eccentric Filled Arch Reducing Rubber Expansion Jo
Eccentric Filled Arch Reducing Rubber Expansion Jo
Eccentric Reducing Rubber Expansion Joint with Tab
Eccentric Reducing Rubber Expansion Joint with Tab
Eccentric Unfilled Arch Reducing Rubber Expansion
Eccentric Unfilled Arch Reducing Rubber Expansion
FSF Single Sphere
FSF Single Sphere
FSF-B Single Sphere Rubber Expansion Joint fitted
FSF-B Single Sphere Rubber Expansion Joint fitted
PTFE Lined Rubber Expansion Joint FSF with Table E
PTFE Lined Rubber Expansion Joint FSF with Table E
Quadruple Arch Rubber Expansion Joint
Quadruple Arch Rubber Expansion Joint
Single Arch Rubber Expansion Joint with unfilled a
Single Arch Rubber Expansion Joint with unfilled a
Single Filled Arch Rubber Expansion Joint
Single Filled Arch Rubber Expansion Joint
Sunshield
Sunshield
Triple Arch Rubber Expansion Joint
Triple Arch Rubber Expansion Joint
Twin Sphere Rubber Expansion Joint FTF with Table
Twin Sphere Rubber Expansion Joint FTF with Table
What is an Expansion Joint?
An expansion joint (also called a rubber bellows or flexible connector) is a pipe fitting designed to absorb thermal expansion, vibration, and movement in piping systems. Pipe expansion joints prevent stress on pipes, pumps, and connected equipment by providing flexibility where rigid connections would fail.
Rubber expansion joints for pipe systems use an EPDM or NBR rubber bellows element between metal flanges. The pipe rubber bellows absorbs axial compression and extension, lateral offset, and angular misalignment. This makes rubber pipe expansion joints essential for pump connections, HVAC systems, and any application where thermal movement or vibration occurs.
We supply pipe expansion joints for a wide range of applications including chilled water pipe expansion joints for HVAC cooling systems, thermal expansion joints for hot water and heating pipelines, and steam pipe expansion joints for high-temperature industrial processes. Our rubber expansion joints for pipe are available in sizes from DN25 to DN600 with PN16 pressure ratings.
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Why Buy Expansion Joints from Dewater
Established in 2015, Dewater Products supplies rubber expansion joints Australia-wide from our base in Perth. We source from over 20 approved manufacturers across 5 countries and supply made to your specification, so you get the rubber material, movement rating and flange standard your system needs at competitive pricing.
Expansion Joint FAQs
What does a rubber expansion joint actually do?
A rubber expansion joint is a flexible connector fitted into rigid pipework to absorb vibration, take up thermal expansion and contraction, correct minor pipe misalignment, and reduce noise transmission. It protects pumps, valves and connected equipment from stress that would otherwise cause fatigue and leaks.
Single sphere, twin sphere or arch: which type do I need?
A single sphere joint handles most general pump and vibration duties. A twin sphere joint allows greater movement and offset, useful where more flexibility is needed. Arch (spool) types suit larger diameters and higher movement. Reducing joints change diameter and absorb movement in one fitting. Tell us the movement and pressure you need and we match the type.
Which rubber material should I choose?
EPDM suits water, hot water and many chemicals and is the common default. Neoprene is a good general-purpose option, NBR (Nitrile) resists oils and fuels, and Viton handles aggressive chemicals and higher temperatures. Hypalon and natural rubber are also available. Joints are supplied in sizes from DN25 to DN3500 with pressure ratings up to 25 BAR.
Do I need control rods?
Control rods limit the joint's extension and prevent over-elongation or blow-off on higher-pressure lines or where anchoring is limited. They are recommended where the system pressure could push the joint beyond its rated movement. We can supply joints with control rods, vacuum rings and sunshields as required.
Need Help Selecting the Right Pipe Expansion Joint?
As suppliers of leading pipe expansion joints manufacturers, our technical team can help you specify the right rubber bellows for your application, whether it's thermal expansion joints for pipe heating systems, chilled water expansion joints, or steam pipe applications. Call us on 1300 271 290 or request a quote.