The Thread End Rubber Expansion Joint is a compact and flexible solution designed to absorb vibration, reduce noise, and compensate for thermal movement in small-diameter pipelines. With threaded connections on both ends, this joint is especially suitable for systems where flanged connections are not practical.
Made from high-quality EPDM or NBR rubber, the thread end rubber expansion joint is reinforced with strong synthetic fabric and internal steel rings to ensure stability under pressure and long-term durability. It is commonly used in residential piping, HVAC units, cooling systems, and small industrial lines.
This type of joint allows for axial compression and extension, making it ideal for tight spaces and compact installations. It also helps prevent pipe damage by relieving stress caused by vibration and movement.
Available in various thread sizes and pressure ratings, our thread end rubber expansion joints are engineered for easy installation and maintenance-free operation.
As one of China’s top rubber joint manufacturers, we deliver reliable, certified solutions trusted by plumbing contractors and industrial engineers worldwide.
Material:
1. Joint: Cast Iron
2. Liner: NBR, EPDM
3. Frame: Nylon cord fabric
4. Pressurized ring: Steel wire
Features:
1. Greatly absorb pipe movements, relieve stress, reduce system noise/vibration
2. Small volume, small weight, good flexibility, easy installation and maintenance
3. Strong resistance of acid, alkali, oil, and electrolytic
4. Working Pressure: 1.6Mpa
Standard of implementation
| Attribute | Details |
|---|---|
| WORKING Pressure (Mpa) | 1.6 |
| Bursting Pressure (Mpa) | 3 |
| Angle of Deflection | 15° |
| Vacuity Kpa (mmhg) | -15~115° |
| Applicable Media | Air, Compressed Water, Weak Acid, Alkali, etc |
Standard Materials Of Main Parts
| ITEM | PART NAME | MATERIAL |
|---|---|---|
| 1 | Joint | Cast |
| 2 | Liner | NBR |
| 3 | Farm | Stainless |
| 4 | Steel wire | CS |
Dimensions:(mm)
| SIZE (in) | DN | L | Axial Disolacement (Stretch) | Axial Displacement (Compression) | Latearal Disolacement |
|---|---|---|---|---|---|
| 1/2 | 15 | 180 | 5~6 | 22 | 22 |
| 3/4 | 20 | 180 | 5~6 | 22 | 22 |
| 1 | 25 | 180 | 5~6 | 22 | 22 |
| 1 1/4 | 32 | 200 | 5~6 | 22 | 22 |
| 1 1/2 | 40 | 210 | 5~6 | 22 | 22 |
| 2 | 50 | 220 | 5~6 | 22 | 22 |
| 2 1/2 | 65 | 245 | 5~6 | 22 | 22 |
