Rubber Expansion Joint Double Sphere REJ200
REJ200 is a double sphere rubber expansion joint for pipe systems requiring vibration absorption, noise reduction, and axial or lateral movement compensation.
Features
- Allows four-way movement compensation.
- Precision molded from synthetic rubber and reinforced nylon.
- Excellent ability to absorb vibration and noise.
- Designed to withstand high pressure service conditions.
- Corrosion resistant and easy to install with floating flange design.
Main Dimensions
| Nominal Diameter (mm) | Inch | Length (mm) | Axial Extension (mm) | Axial Compression (mm) | Horizontal Movement (mm) | Deflection Angle |
|---|---|---|---|---|---|---|
| 40 | 1-1/2 | 165 | 30 | 50 | 45 | 35 degrees |
| 50 | 2 | 165 | 30 | 50 | 45 | 35 degrees |
| 65 | 2-1/2 | 170 | 30 | 50 | 45 | 35 degrees |
| 80 | 3 | 175 | 35 | 50 | 45 | 35 degrees |
| 100 | 4 | 225 | 35 | 50 | 40 | 35 degrees |
| 125 | 5 | 225 | 35 | 50 | 40 | 35 degrees |
| 150 | 6 | 225 | 35 | 50 | 40 | 35 degrees |
| 200 | 8 | 325 | 35 | 50 | 40 | 35 degrees |
| 250 | 10 | 325 | 35 | 60 | 35 | 30 degrees |
| 300 | 12 | 325 | 35 | 60 | 35 | 30 degrees |
| 350 | 14 | 350 | 35 | 60 | 35 | 30 degrees |
| 400 | 16 | 350 | 35 | 60 | 35 | 30 degrees |
| 450 | 18 | 350 | 35 | 60 | 35 | 30 degrees |
| 500 | 20 | 350 | 35 | 60 | 35 | 30 degrees |
| 600 | 24 | 400 | 35 | 60 | 35 | 30 degrees |
Material Structure Diagram

Materials
| No. | Part | Material |
|---|---|---|
| 1 | Outer / inner rubber | NR, EPDM, NBR, FKM, Neoprene etc. |
| 2 | Frame | Nylon cord fabric |
| 3 | Pressurized ring | Steel wire strand |
| 4 | Flange | Carbon steel galvanized, paint; ductile iron; stainless steel etc. |
Notes
- Size range from DN40-DN1200 is available; special size and length can be customized.
- Flange standard can be DIN, ANSI, JIS and other standards on request.
- Higher temperatures affect movement and pressure. Rated values should be reduced accordingly as temperature increases.
- Pressures shown are recommended operating values; test pressure is 1.5 times operating pressure.
- Use normal precautions for pipelines and equipment carrying fluids at elevated temperature or pressure, and inspect installed joints regularly.
- For other applicable fluids, please consult the supplier or manufacturer.
- OEM and ODM service is available.
Product Details
| Product Type | Double sphere rubber expansion joint for larger movement compensation and vibration isolation |
|---|---|
| Main Materials | Rubber body with reinforced structure and metal connection parts according to product type |
| Connection | Flange, threaded union, clamp or reducing connection according to the selected REJ model |
| Function | Absorbs vibration, reduces noise, compensates movement and helps protect connected pipework |
| Applications | Water supply, HVAC, pump connection, industrial piping and general pipeline systems |
| Ordering Note | Confirm nominal diameter, pressure, connection type, rubber material and flange/drilling standard when sending an inquiry |
