Description
A union type expansion joint is a flexible rubber connector with a threaded union at each end. It absorbs vibration, noise and small pipe movements. Therefore, it protects pumps, chillers and pipework from stress. We stock these joints at our showroom in Nad Al Hamar, Dubai, for same-day collection across the UAE.
First, choose the size to match your pipe thread. Next, choose the rubber: EPDM suits hot and cold water, while NBR suits oil and fuel. Because the ends are unions, you can also remove the joint later without cutting the pipe. As a result, one joint can serve for years with little maintenance.
Why Choose Our Union Type Expansion Joint
- Cuts vibration: The rubber sphere stops pump vibration from travelling down the pipe.
- Reduces noise: As a result, plant rooms and buildings stay quieter.
- Allows movement: It takes up small axial, lateral and angular movement.
- Easy to remove: In addition, the union ends let you swap a pump quickly.
Union Type Expansion Joint: Specifications
| Parameter | Specification |
|---|---|
| Body | EPDM or NBR rubber, single or twin sphere |
| Ends | Threaded union ends, BSP or NPT |
| Sizes | 1/2″ to 3″ |
| Pressure | Typically PN10 to PN16, depending on size |
| Union material | Malleable iron (galvanised) or stainless steel |
Where They Are Used
- HVAC systems: for example, at chiller and AHU pump connections.
- Water pumps: for instance, booster and transfer pumps.
- Fire pump sets: such as jockey pump connections.
- Industrial lines: in particular, small compressors and cooling loops.
Order from Our Dubai Showroom
Firstly, visit Showroom No. 14, Nad Al Hamar, Dubai to collect from the counter. Alternatively, send your list to +971 4 285 1521 or on WhatsApp at +971 50 486 7233 for a same-day quote. You can also see our expansion joints range or read about expansion joints.
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