RDU Series Rubber Expansion Joints are double bellow connectors with union connections, designed to provide flexibility and effective vibration control in piping systems. The joints are precision-molded from high-quality synthetic rubber and reinforced with nylon fabric to ensure strength, durability, and reliable performance. These expansion joints are widely used in pump and piping applications to absorb vibration, correct misalignment, and relieve stresses caused by thermal expansion and system movement. The RDU Series allows for axial compression and elongation, transverse deflection, and angular movement. The joint is constructed from corrosion-resistant materials to provide long-term protection for connected equipment and piping.
Normally used in pumps and piping
To absorb the vibration and misalignment correction in piping
Fluids for standard construction: Water (cold, hot or salt), weak acids, compressed air, etc.
Reduces noise and vibration
Eliminates piping misalignment
Eliminates stress due to thermal expansion
Allows for greater axial, transverse and angular movements
Corrosion resistant materials
Precision molded of synthetic rubber
ANDRE_Rubber Expansion Joints RDU Submittal.pdf
MODEL | SIZE (INCH) | TOTAL LENGTH (INCH) | AXIAL COMPRESSION (INCH) | AXIAL ELONGATION (INCH) | TRANSVERSE DEFLECTION (INCH) | OPERATING PRESSURE (PSI) | BURST PRESSURE (PSI) |
|---|---|---|---|---|---|---|---|
| RDU-5 | 1/2 | 8 | 7/8 | 1/4 | 7/8 | 150 | 700 |
| RDU-7 | 3/4 | 8 | 7/8 | 1/4 | 7/8 | 150 | 700 |
| RDU-10 | 1 | 8 | 7/8 | 1/4 | 7/8 | 150 | 700 |
| RDU-12 | 1 1/4 | 8 | 7/8 | 1/4 | 7/8 | 150 | 700 |
| RDU-15 | 1 1/2 | 8 | 7/8 | 1/4 | 7/8 | 150 | 700 |
| RDU-20 | 2 | 8 | 7/8 | 1/4 | 7/8 | 150 | 700 |
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