Features:
- Product Name: PTFE Lined Bellow Expansion Joint
- Bellows Material: Stainless Steel 304,316,etc.
- Service: Customized Processing Service
- Flange standard: DIN PN16,CL150,JIS 10K,BS4504
- Pressure Rating: 150 Psi
Technical Parameters:
| Technical Parameter | Product Information |
| Working Pressure | PN1.0Mpa, 1.6Mpa, 2.5Mpa, 4.0Mpa |
| Flange standard | DIN PN16, CL150, JIS 10K, BS4504 |
| Nominal Diameter | DN32--DN3000 |
| Guide tube material | Carbon Steel, Stainless Steel |
| Flange material | Q235B, SS304, SS316 |
| Applications | Industrial Piping Systems |
| End Connections | Flanged |
| Service | Customized Processing Service |
| Usage | Joining Pipe Lines |
| Bellows Material | Stainless Steel 304, 316, etc. |
Here's a detailed breakdown of why it's used:
High Purity and Non-Stick Properties: PTFE's smooth, non-porous, and non-stick surface prevents product build-up, facilitates easy cleaning, and ensures media purity. This is critical in industries like pharmaceuticals, food and beverage, and semiconductor manufacturing.
Vibration and Noise Reduction: The flexible bellows design effectively absorbs mechanical vibrations and attenuates noise, protecting connected equipment and reducing overall system noise.
Long Service Life and Low Maintenance: Due to their excellent corrosion and wear resistance, PTFE-lined expansion joints typically have a longer lifespan and require less maintenance compared to other materials in corrosive environments.
Flexibility and Stress Relief: They effectively compensate for pipe movement, reducing stress on the piping system, pumps, and other sensitive equipment, thus preventing premature failure.
Higher Pressure Resistance (compared to solid PTFE): When PTFE is used as a liner within a metal bellows, it provides higher pressure ratings than expansion joints made solely of PTFE, allowing for use in more demanding applications.
Advantages of polytetrafluoroethylene process:
1. High operating temperature - under strong corrosive media conditions, it can meet the operating temperature range of -60 degrees to 250 degrees, and can meet all chemical media in this temperature range
2. Vacuum resistance - can be used under vacuum conditions
3. High pressure resistance - within the temperature range, it can withstand up to 3MPA operating pressure
4. Anti-penetration - polytetrafluoroethylene resin is selected and processed into a high-density, sufficiently thick PTFE lining layer through lining technology,
5. Corrosion resistance - can resist most chemical media, including concentrated nitric acid and aqua regia, and can work at 230℃-250℃ for a long time.
6. Non-adhesion - it has the smallest surface tension among solid materials and does not adhere to any substance.
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