Welflex PTFE expansion joints
Welflex PTFE expansion joints
Why Welflex PTFE expansion joints? Welflex PTFE expansion joints are very flexible, allowing a relatively large movement to be compensated on a short installation length. PTFE expansion joints have excellent chemical resistance.
The pressure resistance of PTFE expansion joints decreases significantly at high temperatures. We recommend preferably using a standard version from our Welflex catalog. In addition to this range, we can also supply versions with higher pressure resistance.
Features
- Range: DN 25 to DN 900
- Media: liquid and gas
- Pressure stage: up to PN 16
- Temperature: up to 200°C
- Excellent chemical resistance
- Flexible
- Lower pressure resistance
- Recording of vibration when pumping
- Reducing noise at pumps and equipment
- Recording of pipeline releases
- Stress-free disconnection of critical equipment
Features
The motion absorption capacity increases with a greater number of waves. However, pressure resistance decreases with a greater number of waves. The 3-wave version has the most optimal relationship between motion absorption and pressure resistance and is therefore most often used.
The design of our PTFE expansion joints determines the characterization we use. In this, the number of waves is leading. An expansion joint with one wave is called HP-1, an expansion joint with three waves is called HP-3, etc.
Exceptions are the HRVS and the HV-1, each of which has a unique application.
