Rubber Expansion Joint Union Threaded REJ300
REJ300 is a threaded union rubber expansion joint for compact pipe connections, designed for vibration reduction and movement compensation in threaded piping systems.
Main Dimensions
| Nominal Diameter (mm) | Inch | Length (mm) | Compression (mm) | Extension (mm) | Horizontal Displacement (mm) |
|---|---|---|---|---|---|
| 15 | 1/2 | 200/220 | 22 | 5~6 | 22 |
| 20 | 3/4 | 200/220 | 22 | 5~6 | 22 |
| 25 | 1 | 200/220 | 22 | 5~6 | 22 |
| 32 | 1-1/4 | 200/220 | 22 | 5~6 | 22 |
| 40 | 1-1/2 | 200/220 | 22 | 5~6 | 22 |
| 50 | 2 | 200/220 | 22 | 5~6 | 22 |
| 65 | 2-1/2 | 245 | 22 | 5~6 | 22 |
| 80 | 3 | 270 | 22 | 5~6 | 22 |
Material Structure Diagram
Materials
| No. | Part | Material |
|---|---|---|
| 1 | Union | Malleable iron, SS304 |
| 2 | Outer / inner rubber | NR, EPDM, NBR, FKM, Neoprene etc. |
| 3 | Frame | Nylon cord fabric |
Working Pressure and Packing
- Normal working pressure: PN16; special pressure can be customized.
- Packing: usually carton case, then placed into export plywood case.
- OEM and ODM service is available from Runtai.
Product Details
| Product Type | Union threaded rubber expansion joint for threaded pipe connection and compact installation |
|---|---|
| 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 |
