Q235 SS304 Single Sphere Rubber Expansion Joint DN50–DN600 Galvanized
Single Sphere Rubber Expansion Joint | Flexible Flanged Connector for Pipelines
High-quality single sphere rubber expansion joint with flanged connection. Designed for vibration absorption, noise reduction, and pipeline misalignment compensation. Available in EPDM, NBR, Neoprene materials.
Key Features
- Flexible Connection: Compensates axial, lateral, and angular movements in pipelines.
- Durable Rubber Material: Options include EPDM, NBR, Neoprene for water, oil, and chemical resistance.
- Noise & Vibration Reduction: Effectively isolates vibration from pumps, compressors, and pipelines.
- Easy Installation: Compact design, light weight, and flanged ends make assembly quick.
- Wide Applications: Suitable for HVAC, water supply, sewage treatment, chemical plants, shipbuilding, and fire-fighting systems.
Technical Specifications
| Specification |
Details |
| Product Name |
Single Sphere Rubber Expansion Joint |
| Nominal Diameter |
DN25 - DN600 (1"-24") |
| Pressure Rating |
PN10, PN16, 150LB, 300LB |
| Material Options |
EPDM, NBR, Neoprene, Natural Rubber |
| Flange Standards |
DIN, ANSI, JIS, BS, EN |
| Working Temperature |
-20°C to +120°C (depending on rubber type) |
| Application |
Water, Air, Oil, Acid, Alkali, Chemicals |
| Connection Type |
Flanged |
The Single Sphere Rubber Expansion Joint is a flexible connector widely used in industrial and civil pipeline systems. Its spherical structure allows high flexibility, making it an excellent solution for absorbing pipeline vibration, reducing noise, and compensating for axial and lateral displacement.
Made from premium rubber materials such as EPDM, NBR, and Neoprene, this expansion joint ensures outstanding resistance to water, oil, and a variety of chemicals. The flanged ends are designed according to international standards (DIN, ANSI, JIS), making installation compatible with global piping systems.
Compared to double sphere models, the single sphere design offers compact size and cost-effectiveness, ideal for space-limited installations without sacrificing performance. By choosing our single sphere rubber expansion joint, you ensure long service life, safe operation, and improved efficiency in your pipeline system.
Single Ball Rubber Bellow Production Process
Installation Instructions
- Align the flanges of the rubber expansion joint with the pipeline flanges.
- Insert bolts and tighten them crosswise to ensure uniform pressure.
- Avoid over-tightening to prevent damage to the rubber body.
- Do not install near sharp objects or under direct sunlight for long periods.
- For vertical pipelines, use support to avoid the weight stressing the joint.
This is a brief installation guide for rubber expansion joints. If you need more comprehensive installation instructions or maintenance manuals, please contact us.
Frequently Asked Questions
Q1: What is the difference between single sphere and double sphere rubber expansion joints?
A1: The single sphere design is more compact and cost-effective, while the double sphere offers higher displacement absorption.
Q2: Can this expansion joint be used for drinking water?
A2: Yes, when using food-grade rubber material.
Q3: What flange standards are available?
A3: We provide DIN, ANSI, JIS, BS, and customized drilling standards.
Q4: How long is the service life?
A4: Typically 3-5 years under normal conditions; service life depends on working medium, temperature, and pressure.
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