Limit Rod Expansion Joints
A building expansion joint compensator is a flexible pipe element that absorbs the axial, lateral and vertical movement between building blocks where pipelines cross building expansion joints.
It is used where fire, heating, cooling and domestic water lines cross building joints. The product range includes DN25–DN300 weld neck and flanged models with limit rods in 50 mm and 100 mm movement series.
Main Applications
- Building expansion joint crossings
- Fire system joint crossings
- Heating and cooling lines
- Domestic water riser crossings
- Car park and inter-block lines
- Bridge and platform connections
Technical Data
| Type | Building (joint) expansion compensator |
|---|---|
| Sizes | DN25 – DN300 (product range) |
| Movement series | 50 mm and 100 mm (product name) |
| Connection | Weld neck and flanged (by product name) |
| Restraint | With limit rods (product name) |
| Bellows | Stainless steel (depending on model) |
| Pressure class | Depending on model |
| Temperature | Depending on model |
Material Options
| Part | 50 mm series | 100 mm series |
|---|---|---|
| Movement capacity | Medium joint movement | Large joint movement |
| Connection | Weld neck or flanged | Weld neck or flanged |
| Restraint | Rods | Rods |
| Typical use | Normal building joints | Wide joints, seismic zones |
Which material? A building expansion compensator is chosen for the expected joint movement; on fire lines that must also withstand seismic movement, approved seismic compensators are preferred. Pressure and temperature are confirmed per model.
Advantages
Multi-Axis Movement
- Absorbs joint movement
Protects the Line
- Prevents breakage and leaks
Two Movement Series
- 50 and 100 mm
Wide Size Range
- From DN25 to DN300
Construction and Design Features
- Stainless bellows elements
- Limit rods
- Weld necks or flanges
- Intermediate pipe (depending on model)
Send the size, joint movement, connection type and fluid; we will confirm a suitable building expansion compensator.
How to Choose?
- Size and connectionChoose DN and weld neck or flanged type.
- PressureConfirm line pressure per model.
- Joint movementChoose the 50 or 100 mm series for the expected movement.
- Seismic requirementState if seismic approval is needed on fire lines.
Complementary Products
Why ORFA?
Other Metal Bellows Expansion Joints
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Omega U-Flex Expansion Joints
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Expansion Joint Omega V-Flex
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Expansion Joints and Seismic Compensators
Expansion joints and seismic compensators protect pipelines during building movement and earthquakes with multi-directional flexibility.
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Axial Metal Bellows Expansion Joint / Rotating Flange
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Axial Metal Bellows Expansion Joint / Welding Neck
Axial metal bellows expansion joints with welding necks are welded directly into the pipeline to absorb axial thermal expansion.
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Axial Metal Bellows Expansion Joint / Fixed Flange
Axial metal bellows expansion joints with fixed flanges absorb axial thermal expansion in steam, hot water and process lines.
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Vibration Absorber Metal Expansion Joints
Vibration absorber metal expansion joints prevent vibration from pumps, compressors and chillers from passing into the pipeline.
Details →Get a quote for your project
Our sales team will prepare the best solution for your needs.