Double sphere rubber expansion joint is a flexible connector used in piping systems to absorb movements, thermal expansion, vibrations, and misalignment. It features two spherical sections, providing enhanced flexibility and accommodating greater movement in multiple directions.
| Nominal diameter | Length (mm) |
Axial displacement | Horizontal movement (mm) |
Deflection angle (a1+a2) |
||
| mm | Inch | Compression (mm) |
Extension (mm) |
|||
| 40 | 1½ | 165 | 30 | 50 | 45 | 35° |
| 50 | 2 | 165 | 30 | 50 | 45 | 35° |
| 65 | 2½ | 170 | 30 | 50 | 45 | 35° |
| 80 | 3 | 175 | 35 | 50 | 45 | 35° |
| 100 | 4 | 225 | 35 | 50 | 40 | 35° |
| 125 | 5 | 225 | 35 | 50 | 40 | 35° |
| 150 | 6 | 255 | 35 | 50 | 40 | 35° |
| 200 | 8 | 325 | 35 | 50 | 40 | 35° |
| 250 | 10 | 325 | 35 | 60 | 35 | 30° |
| 300 | 12 | 325 | 35 | 60 | 35 | 30° |
| 350 | 14 | 350 | 35 | 60 | 35 | 30° |
| 400 | 16 | 350 | 35 | 60 | 35 | 30° |
| 450 | 18 | 350 | 35 | 60 | 35 | 30° |
| 500 | 20 | 350 | 35 | 60 | 35 | 30° |
| 600 | 24 | 400 | 35 | 60 | 35 | 30° |
1.Increased Flexibility: The double spherical design allows for significant axial, lateral, and angular movements, making it ideal for complex piping configurations.
2.Vibration and Noise Reduction: These joints effectively dampen vibrations and reduce noise, contributing to the overall efficiency and comfort of the system.
3.Durable Construction: Made from high-quality rubber materials, double sphere expansion joints are resistant to chemicals, temperature changes, and abrasion, ensuring long-term reliability.
4.Easy Installation: Similar to single sphere joints, they are lightweight and designed for straightforward installation with minimal tools.
Double sphere rubber expansion joints are widely used in industries such as water treatment, HVAC, petrochemical, and manufacturing. They are commonly found in pipelines that transport water, chemicals, or gases, helping to manage thermal expansion, absorb shocks, and protect equipment from damage due to movement. Their ability to accommodate more significant movements makes them particularly useful in applications with high thermal cycling or dynamic loading conditions.
