Single Sphere Rubber Expansion Joint | Flexible Flanged Connector for Pipelines

Description:
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.

Bullet Points

✅ 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.

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 Brief Instructions

1. Align the flanges of the rubber expansion joint with the pipeline flanges.

2. Insert bolts and tighten them crosswise to ensure uniform pressure.

3. Avoid over-tightening to prevent damage to the rubber body.

4. Do not install near sharp objects or under direct sunlight for long periods.

5. For vertical pipelines, use support to avoid the weight stressing the joint.

Pls noted:

This is a brief installation guide for rubber expansion joints. If you need more comprehensive installation instructions or maintenance manuals, please contact us.

FAQ

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.

The company adheres to the business philosophy of "customer satisfaction is our first duty, all employees are responsible for creating quality, continuous improvement sets new heights, honest service builds reputation", and wholeheartedly provides high-quality products and professional services to new and old customers.

The factory mainly produces rubber expansion joints, duckbill check valves, dismantling joint, bellow expansion joints, compensators, repair clamp, 02S404 national standard waterproof casings, gate valves ,butterfly valves etc; and all products have passed ISO 9001:2015 quality management system certification; adopting national and industry standards, advanced manufacturing technology, strong R&D and manufacturing capabilities, they are widely used in water supply, drainage, electricity, chemical industry, gas, metallurgy, urban construction and environmental protection and other pipeline industries.