Double ball rubber expansion joint2 of 2 expansion joints
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Expansion Joint
Thread End Rubber Expansion Joint
Debug · supplier source (internal only)
Specifications
Confirmed at quote- Size Range
- DN15-DN65
- Pressure Class
- 1.6
- Standards
- ANSI B16.10, BS5152, BSPT/NPT
- End connection
- Thread end
Available sizes
Standard DN sizes covered by this product. Confirmed at quote.
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- body
- seat
- stem
- frame
- joint
- liner
- steel wire
Dimensions per size(7 sizes)
| Size | L | axial_displacement_stretch | axial_displacement_compression | lateral_displacement | Weight |
|---|---|---|---|---|---|
| DN15 | 180 mm | 5~6 mm | 22 mm | 22 mm | — |
| DN20 | 180 mm | 5~6 mm | 22 mm | 22 mm | — |
| DN25 | 180 mm | 5~6 mm | 22 mm | 22 mm | — |
| DN32 | 200 mm | 5~6 mm | 22 mm | 22 mm | — |
| DN40 | 210 mm | 5~6 mm | 22 mm | 22 mm | — |
| DN50 | 220 mm | 5~6 mm | 22 mm | 22 mm | — |
| DN65 | 245 mm | 5~6 mm | 22 mm | 22 mm | — |
Operating media
AirCompressed WaterWeak AcidAlkali
Approvals
LR (Lloyd's Register) approvedECM (Ente Certificazione Macchine) certifiedISO certifiedEAC (Eurasian Conformity) markedCE markedBureau Veritas certifiedACS (Attestation de Conformité Sanitaire) approvedWRAS Approved Product
Features
- Absorbs axial compression and extension movements
- Reduces system noise and vibration
- Small volume and low weight
- Resistance to acid, alkali, oil, and electrolytic media
- Working pressure: 1.6 MPa
- Bursting pressure: 3 MPa
- Angle of deflection: 15°
- Vacuity: -15 to 115 kPa (mmHg notation used in source)
- PN16 pressure rating visible on product label (image 1)
- Threaded union end connections (male/female BSP)
- Dual-arch rubber bellows element
- Galvanised malleable iron union end fittings
- Range includes single-arch and double-arch rubber bellows variants with threaded union ends (visible in group shot)
Notes
- Our products hold up to 10 international authoritative certification certificates, ensuring compliance with global standards.
- Diagram: Cross-sectional drawing of a threaded union rubber expansion joint showing four numbered components: (1) malleable iron union body/end piece, (2) rubber bellows outer wall/arch, (3) internal fabric/rubber reinforcement layer (cross-hatched), (4) malleable iron union nut. Overall installed length dimension 'L' is indicated between the outer faces of the two union ends.
Description
A threaded-end rubber expansion joint designed to absorb vibration, reduce noise, and compensate for thermal movement in small-diameter pipelines. Constructed with a cast iron joint body, NBR or EPDM rubber liner reinforced with nylon cord fabric, and steel wire pressurisation rings. Suitable for residential piping, HVAC, cooling systems, and small industrial lines.
Smart find
Searches our product catalogue using your spec. Drop a PDF — or multiple PDFs at once — paste a description or a part number and we'll find the closest matches for each. Anything we can't match goes to your RFQ as a custom enquiry for our team to source.Related Expansion Joints
Expansion JointREF 259Double ball rubber expansion joint
- Model
- —
- Size
- DN50-DN400
- Pressure
- PN10/PN16
- Body
- Natural Rubber / EPDM / NBR / Neoprene / Hypalon / Butyl Rubber
- Standards
- ANSI B16.10, BS5152
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Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.