Product Range · 9 Products
Metal Expansion Joints
Stainless-steel bellows joints built to EJMA standards — axial, universal-tied, gimbal, externally-pressurized, vibration-absorbing, and large-bore lens, rectangular and omega-loop types. Each sized to your line, pressure and movement.
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The Range
AXLAxial Expansion JointsStraight-run extension and compression along the pipe axis — the EJMA workhorse.DN 25 – 3000PN6 – 64View product 
EXPExternally PressurizedLong axial travel without squirm — single joints for long single-anchor runs.DN 25 – 1200PN2.5 – 64View product 
UNIUniversal TiedTwin bellows absorb lateral offset; tie rods carry the pressure thrust.DN 25 – 3000PN6 – 64View product 
GMBGimbal/HingedAngular rotation in every plane — thrust-restrained by the gimbal ring.DN 25 – 1000PN6 – 64View product 
VIBVibration AbsorberShort bellows connectors that isolate pump and equipment vibration.DN 25 – 1200PN6 – 64View product 
RECRectangularFabricated bellows following square and rectangular duct geometry.DN 25 – 3000PN40 maxView product 
LENLens TypePressed single-lens element for large ducts and abrasive media.DN 25 – 3000PN40 maxView product 
OMUOmega U-FlexDeep Ω-loop bellows for very long axial travel on distribution mains.DN 25 – 200PN16View product 
OMVOmega V-FlexV-profile Ω-loop with lower spring rates for cycling thermal duty.DN 25 – 200PN16View product /02
Compare the Range
| Axial Expansion Joints | Externally Pressurized | Universal Tied | Gimbal/Hinged | Vibration Absorber | Rectangular | Lens Type | Omega U-Flex | Omega V-Flex | |
|---|---|---|---|---|---|---|---|---|---|
| Size range | DN25–3000 | DN25–1200 | DN25–3000 | DN25–1000 | DN25–1200 | DN25–3000 | DN25–3000 | DN25–200 | DN25–200 |
| Pressure | PN6–64 | PN2.5–64 | PN6–64 | PN6–64 | PN6–64 | PN40 max | PN40 max | PN16 | PN16 |
| Temperature | -20 to +400 °C | -20 to +400 °C | -90 to +550 °C | -90 to +550 °C | -90 to +550 °C | 550 °C max | 550 °C max | -90 to +600 °C | -90 to +600 °C |
| Movement | Axial | Long axial | Lateral · angular | Angular, all planes | Vibration | Axial · lateral | Axial | Very long axial | Long axial, cycling |
| Best for | Straight runs | Long mains | Direction changes | Pipe legs | Pumps · chillers | Ducting | Large ducts | District heating | Steam mains |
Designed to EJMA — every joint pressure-tested before dispatch, EN 10204 3.1 certificates on request.
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Which Joint Do I Need?
Pipe grows along its lengthAxial Expansion Joint Long axial travel, no squirmExternally Pressurized Lateral offset between anchorsUniversal Tied Angular rotation, any planeGimbal/Hinged Pump or equipment vibrationVibration Absorber Rectangular ducting / flue gasRectangular Very large bore, up to DN3000Lens Long runs, big thermal growthOmega Loop
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Get the Metal Expansion Joint sized to your line
Send your nominal diameter (DN), pressure (PN), required movement and medium — we come back with the right size, material and movement value, usually within 24 hours.
Engineered to order. Delivered worldwide.
Send your duty conditions — size, pressure, temperature, medium and connections — and our engineers return a drawing, material selection and lead time.
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